/* SPDX-License-Identifier: BSD-3-Clause * Copyright 2016 6WIND S.A. * Copyright 2016 Mellanox Technologies, Ltd */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "mlx5_defs.h" #include "mlx5.h" #include "mlx5_flow.h" #include "mlx5_flow_os.h" #include "mlx5_rxtx.h" #include "mlx5_common_os.h" #include "rte_pmd_mlx5.h" struct tunnel_default_miss_ctx { uint16_t *queue; __extension__ union { struct rte_flow_action_rss action_rss; struct rte_flow_action_queue miss_queue; struct rte_flow_action_jump miss_jump; uint8_t raw[0]; }; }; static int flow_tunnel_add_default_miss(struct rte_eth_dev *dev, struct rte_flow *flow, const struct rte_flow_attr *attr, const struct rte_flow_action *app_actions, uint32_t flow_idx, struct tunnel_default_miss_ctx *ctx, struct rte_flow_error *error); static struct mlx5_flow_tunnel * mlx5_find_tunnel_id(struct rte_eth_dev *dev, uint32_t id); static void mlx5_flow_tunnel_free(struct rte_eth_dev *dev, struct mlx5_flow_tunnel *tunnel); static uint32_t tunnel_flow_group_to_flow_table(struct rte_eth_dev *dev, const struct mlx5_flow_tunnel *tunnel, uint32_t group, uint32_t *table, struct rte_flow_error *error); static struct mlx5_flow_workspace *mlx5_flow_push_thread_workspace(void); static void mlx5_flow_pop_thread_workspace(void); /** Device flow drivers. */ extern const struct mlx5_flow_driver_ops mlx5_flow_verbs_drv_ops; const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops; const struct mlx5_flow_driver_ops *flow_drv_ops[] = { [MLX5_FLOW_TYPE_MIN] = &mlx5_flow_null_drv_ops, #if defined(HAVE_IBV_FLOW_DV_SUPPORT) || !defined(HAVE_INFINIBAND_VERBS_H) [MLX5_FLOW_TYPE_DV] = &mlx5_flow_dv_drv_ops, #endif [MLX5_FLOW_TYPE_VERBS] = &mlx5_flow_verbs_drv_ops, [MLX5_FLOW_TYPE_MAX] = &mlx5_flow_null_drv_ops }; /** Helper macro to build input graph for mlx5_flow_expand_rss(). */ #define MLX5_FLOW_EXPAND_RSS_NEXT(...) \ (const int []){ \ __VA_ARGS__, 0, \ } /** Node object of input graph for mlx5_flow_expand_rss(). */ struct mlx5_flow_expand_node { const int *const next; /**< * List of next node indexes. Index 0 is interpreted as a terminator. */ const enum rte_flow_item_type type; /**< Pattern item type of current node. */ uint64_t rss_types; /**< * RSS types bit-field associated with this node * (see ETH_RSS_* definitions). */ }; /** Object returned by mlx5_flow_expand_rss(). */ struct mlx5_flow_expand_rss { uint32_t entries; /**< Number of entries @p patterns and @p priorities. */ struct { struct rte_flow_item *pattern; /**< Expanded pattern array. */ uint32_t priority; /**< Priority offset for each expansion. */ } entry[]; }; static enum rte_flow_item_type mlx5_flow_expand_rss_item_complete(const struct rte_flow_item *item) { enum rte_flow_item_type ret = RTE_FLOW_ITEM_TYPE_VOID; uint16_t ether_type = 0; uint16_t ether_type_m; uint8_t ip_next_proto = 0; uint8_t ip_next_proto_m; if (item == NULL || item->spec == NULL) return ret; switch (item->type) { case RTE_FLOW_ITEM_TYPE_ETH: if (item->mask) ether_type_m = ((const struct rte_flow_item_eth *) (item->mask))->type; else ether_type_m = rte_flow_item_eth_mask.type; if (ether_type_m != RTE_BE16(0xFFFF)) break; ether_type = ((const struct rte_flow_item_eth *) (item->spec))->type; if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_IPV4) ret = RTE_FLOW_ITEM_TYPE_IPV4; else if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_IPV6) ret = RTE_FLOW_ITEM_TYPE_IPV6; else if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_VLAN) ret = RTE_FLOW_ITEM_TYPE_VLAN; else ret = RTE_FLOW_ITEM_TYPE_END; break; case RTE_FLOW_ITEM_TYPE_VLAN: if (item->mask) ether_type_m = ((const struct rte_flow_item_vlan *) (item->mask))->inner_type; else ether_type_m = rte_flow_item_vlan_mask.inner_type; if (ether_type_m != RTE_BE16(0xFFFF)) break; ether_type = ((const struct rte_flow_item_vlan *) (item->spec))->inner_type; if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_IPV4) ret = RTE_FLOW_ITEM_TYPE_IPV4; else if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_IPV6) ret = RTE_FLOW_ITEM_TYPE_IPV6; else if (rte_be_to_cpu_16(ether_type) == RTE_ETHER_TYPE_VLAN) ret = RTE_FLOW_ITEM_TYPE_VLAN; else ret = RTE_FLOW_ITEM_TYPE_END; break; case RTE_FLOW_ITEM_TYPE_IPV4: if (item->mask) ip_next_proto_m = ((const struct rte_flow_item_ipv4 *) (item->mask))->hdr.next_proto_id; else ip_next_proto_m = rte_flow_item_ipv4_mask.hdr.next_proto_id; if (ip_next_proto_m != 0xFF) break; ip_next_proto = ((const struct rte_flow_item_ipv4 *) (item->spec))->hdr.next_proto_id; if (ip_next_proto == IPPROTO_UDP) ret = RTE_FLOW_ITEM_TYPE_UDP; else if (ip_next_proto == IPPROTO_TCP) ret = RTE_FLOW_ITEM_TYPE_TCP; else if (ip_next_proto == IPPROTO_IP) ret = RTE_FLOW_ITEM_TYPE_IPV4; else if (ip_next_proto == IPPROTO_IPV6) ret = RTE_FLOW_ITEM_TYPE_IPV6; else ret = RTE_FLOW_ITEM_TYPE_END; break; case RTE_FLOW_ITEM_TYPE_IPV6: if (item->mask) ip_next_proto_m = ((const struct rte_flow_item_ipv6 *) (item->mask))->hdr.proto; else ip_next_proto_m = rte_flow_item_ipv6_mask.hdr.proto; if (ip_next_proto_m != 0xFF) break; ip_next_proto = ((const struct rte_flow_item_ipv6 *) (item->spec))->hdr.proto; if (ip_next_proto == IPPROTO_UDP) ret = RTE_FLOW_ITEM_TYPE_UDP; else if (ip_next_proto == IPPROTO_TCP) ret = RTE_FLOW_ITEM_TYPE_TCP; else if (ip_next_proto == IPPROTO_IP) ret = RTE_FLOW_ITEM_TYPE_IPV4; else if (ip_next_proto == IPPROTO_IPV6) ret = RTE_FLOW_ITEM_TYPE_IPV6; else ret = RTE_FLOW_ITEM_TYPE_END; break; default: ret = RTE_FLOW_ITEM_TYPE_VOID; break; } return ret; } #define MLX5_RSS_EXP_ELT_N 8 /** * Expand RSS flows into several possible flows according to the RSS hash * fields requested and the driver capabilities. * * @param[out] buf * Buffer to store the result expansion. * @param[in] size * Buffer size in bytes. If 0, @p buf can be NULL. * @param[in] pattern * User flow pattern. * @param[in] types * RSS types to expand (see ETH_RSS_* definitions). * @param[in] graph * Input graph to expand @p pattern according to @p types. * @param[in] graph_root_index * Index of root node in @p graph, typically 0. * * @return * A positive value representing the size of @p buf in bytes regardless of * @p size on success, a negative errno value otherwise and rte_errno is * set, the following errors are defined: * * -E2BIG: graph-depth @p graph is too deep. */ static int mlx5_flow_expand_rss(struct mlx5_flow_expand_rss *buf, size_t size, const struct rte_flow_item *pattern, uint64_t types, const struct mlx5_flow_expand_node graph[], int graph_root_index) { const struct rte_flow_item *item; const struct mlx5_flow_expand_node *node = &graph[graph_root_index]; const int *next_node; const int *stack[MLX5_RSS_EXP_ELT_N]; int stack_pos = 0; struct rte_flow_item flow_items[MLX5_RSS_EXP_ELT_N]; unsigned int i; size_t lsize; size_t user_pattern_size = 0; void *addr = NULL; const struct mlx5_flow_expand_node *next = NULL; struct rte_flow_item missed_item; int missed = 0; int elt = 0; const struct rte_flow_item *last_item = NULL; memset(&missed_item, 0, sizeof(missed_item)); lsize = offsetof(struct mlx5_flow_expand_rss, entry) + MLX5_RSS_EXP_ELT_N * sizeof(buf->entry[0]); if (lsize <= size) { buf->entry[0].priority = 0; buf->entry[0].pattern = (void *)&buf->entry[MLX5_RSS_EXP_ELT_N]; buf->entries = 0; addr = buf->entry[0].pattern; } for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) { if (item->type != RTE_FLOW_ITEM_TYPE_VOID) last_item = item; for (i = 0; node->next && node->next[i]; ++i) { next = &graph[node->next[i]]; if (next->type == item->type) break; } if (next) node = next; user_pattern_size += sizeof(*item); } user_pattern_size += sizeof(*item); /* Handle END item. */ lsize += user_pattern_size; /* Copy the user pattern in the first entry of the buffer. */ if (lsize <= size) { rte_memcpy(addr, pattern, user_pattern_size); addr = (void *)(((uintptr_t)addr) + user_pattern_size); buf->entries = 1; } /* Start expanding. */ memset(flow_items, 0, sizeof(flow_items)); user_pattern_size -= sizeof(*item); /* * Check if the last valid item has spec set, need complete pattern, * and the pattern can be used for expansion. */ missed_item.type = mlx5_flow_expand_rss_item_complete(last_item); if (missed_item.type == RTE_FLOW_ITEM_TYPE_END) { /* Item type END indicates expansion is not required. */ return lsize; } if (missed_item.type != RTE_FLOW_ITEM_TYPE_VOID) { next = NULL; missed = 1; for (i = 0; node->next && node->next[i]; ++i) { next = &graph[node->next[i]]; if (next->type == missed_item.type) { flow_items[0].type = missed_item.type; flow_items[1].type = RTE_FLOW_ITEM_TYPE_END; break; } next = NULL; } } if (next && missed) { elt = 2; /* missed item + item end. */ node = next; lsize += elt * sizeof(*item) + user_pattern_size; if ((node->rss_types & types) && lsize <= size) { buf->entry[buf->entries].priority = 1; buf->entry[buf->entries].pattern = addr; buf->entries++; rte_memcpy(addr, buf->entry[0].pattern, user_pattern_size); addr = (void *)(((uintptr_t)addr) + user_pattern_size); rte_memcpy(addr, flow_items, elt * sizeof(*item)); addr = (void *)(((uintptr_t)addr) + elt * sizeof(*item)); } } memset(flow_items, 0, sizeof(flow_items)); next_node = node->next; stack[stack_pos] = next_node; node = next_node ? &graph[*next_node] : NULL; while (node) { flow_items[stack_pos].type = node->type; if (node->rss_types & types) { /* * compute the number of items to copy from the * expansion and copy it. * When the stack_pos is 0, there are 1 element in it, * plus the addition END item. */ elt = stack_pos + 2; flow_items[stack_pos + 1].type = RTE_FLOW_ITEM_TYPE_END; lsize += elt * sizeof(*item) + user_pattern_size; if (lsize <= size) { size_t n = elt * sizeof(*item); buf->entry[buf->entries].priority = stack_pos + 1 + missed; buf->entry[buf->entries].pattern = addr; buf->entries++; rte_memcpy(addr, buf->entry[0].pattern, user_pattern_size); addr = (void *)(((uintptr_t)addr) + user_pattern_size); rte_memcpy(addr, &missed_item, missed * sizeof(*item)); addr = (void *)(((uintptr_t)addr) + missed * sizeof(*item)); rte_memcpy(addr, flow_items, n); addr = (void *)(((uintptr_t)addr) + n); } } /* Go deeper. */ if (node->next) { next_node = node->next; if (stack_pos++ == MLX5_RSS_EXP_ELT_N) { rte_errno = E2BIG; return -rte_errno; } stack[stack_pos] = next_node; } else if (*(next_node + 1)) { /* Follow up with the next possibility. */ ++next_node; } else { /* Move to the next path. */ if (stack_pos) next_node = stack[--stack_pos]; next_node++; stack[stack_pos] = next_node; } node = *next_node ? &graph[*next_node] : NULL; }; /* no expanded flows but we have missed item, create one rule for it */ if (buf->entries == 1 && missed != 0) { elt = 2; lsize += elt * sizeof(*item) + user_pattern_size; if (lsize <= size) { buf->entry[buf->entries].priority = 1; buf->entry[buf->entries].pattern = addr; buf->entries++; flow_items[0].type = missed_item.type; flow_items[1].type = RTE_FLOW_ITEM_TYPE_END; rte_memcpy(addr, buf->entry[0].pattern, user_pattern_size); addr = (void *)(((uintptr_t)addr) + user_pattern_size); rte_memcpy(addr, flow_items, elt * sizeof(*item)); } } return lsize; } enum mlx5_expansion { MLX5_EXPANSION_ROOT, MLX5_EXPANSION_ROOT_OUTER, MLX5_EXPANSION_ROOT_ETH_VLAN, MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN, MLX5_EXPANSION_OUTER_ETH, MLX5_EXPANSION_OUTER_ETH_VLAN, MLX5_EXPANSION_OUTER_VLAN, MLX5_EXPANSION_OUTER_IPV4, MLX5_EXPANSION_OUTER_IPV4_UDP, MLX5_EXPANSION_OUTER_IPV4_TCP, MLX5_EXPANSION_OUTER_IPV6, MLX5_EXPANSION_OUTER_IPV6_UDP, MLX5_EXPANSION_OUTER_IPV6_TCP, MLX5_EXPANSION_VXLAN, MLX5_EXPANSION_VXLAN_GPE, MLX5_EXPANSION_GRE, MLX5_EXPANSION_MPLS, MLX5_EXPANSION_ETH, MLX5_EXPANSION_ETH_VLAN, MLX5_EXPANSION_VLAN, MLX5_EXPANSION_IPV4, MLX5_EXPANSION_IPV4_UDP, MLX5_EXPANSION_IPV4_TCP, MLX5_EXPANSION_IPV6, MLX5_EXPANSION_IPV6_UDP, MLX5_EXPANSION_IPV6_TCP, }; /** Supported expansion of items. */ static const struct mlx5_flow_expand_node mlx5_support_expansion[] = { [MLX5_EXPANSION_ROOT] = { .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH, MLX5_EXPANSION_IPV4, MLX5_EXPANSION_IPV6), .type = RTE_FLOW_ITEM_TYPE_END, }, [MLX5_EXPANSION_ROOT_OUTER] = { .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_ETH, MLX5_EXPANSION_OUTER_IPV4, MLX5_EXPANSION_OUTER_IPV6), .type = RTE_FLOW_ITEM_TYPE_END, }, [MLX5_EXPANSION_ROOT_ETH_VLAN] = { .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH_VLAN), .type = RTE_FLOW_ITEM_TYPE_END, }, [MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN] = { .next = MLX5_FLOW_EXPAND_RSS_NEXT (MLX5_EXPANSION_OUTER_ETH_VLAN), .type = RTE_FLOW_ITEM_TYPE_END, }, [MLX5_EXPANSION_OUTER_ETH] = { .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_IPV4, MLX5_EXPANSION_OUTER_IPV6, MLX5_EXPANSION_MPLS), .type = RTE_FLOW_ITEM_TYPE_ETH, .rss_types = 0, }, [MLX5_EXPANSION_OUTER_ETH_VLAN] = { .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_VLAN), .type = RTE_FLOW_ITEM_TYPE_ETH, .rss_types = 0, }, [MLX5_EXPANSION_OUTER_VLAN] = { .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_OUTER_IPV4, MLX5_EXPANSION_OUTER_IPV6), .type = RTE_FLOW_ITEM_TYPE_VLAN, }, [MLX5_EXPANSION_OUTER_IPV4] = { .next = MLX5_FLOW_EXPAND_RSS_NEXT (MLX5_EXPANSION_OUTER_IPV4_UDP, MLX5_EXPANSION_OUTER_IPV4_TCP, MLX5_EXPANSION_GRE, MLX5_EXPANSION_IPV4, MLX5_EXPANSION_IPV6), .type = RTE_FLOW_ITEM_TYPE_IPV4, .rss_types = ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 | ETH_RSS_NONFRAG_IPV4_OTHER, }, [MLX5_EXPANSION_OUTER_IPV4_UDP] = { .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VXLAN, MLX5_EXPANSION_VXLAN_GPE), .type = RTE_FLOW_ITEM_TYPE_UDP, .rss_types = ETH_RSS_NONFRAG_IPV4_UDP, }, [MLX5_EXPANSION_OUTER_IPV4_TCP] = { .type = RTE_FLOW_ITEM_TYPE_TCP, .rss_types = ETH_RSS_NONFRAG_IPV4_TCP, }, [MLX5_EXPANSION_OUTER_IPV6] = { .next = MLX5_FLOW_EXPAND_RSS_NEXT (MLX5_EXPANSION_OUTER_IPV6_UDP, MLX5_EXPANSION_OUTER_IPV6_TCP, MLX5_EXPANSION_IPV4, MLX5_EXPANSION_IPV6), .type = RTE_FLOW_ITEM_TYPE_IPV6, .rss_types = ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 | ETH_RSS_NONFRAG_IPV6_OTHER, }, [MLX5_EXPANSION_OUTER_IPV6_UDP] = { .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VXLAN, MLX5_EXPANSION_VXLAN_GPE), .type = RTE_FLOW_ITEM_TYPE_UDP, .rss_types = ETH_RSS_NONFRAG_IPV6_UDP, }, [MLX5_EXPANSION_OUTER_IPV6_TCP] = { .type = RTE_FLOW_ITEM_TYPE_TCP, .rss_types = ETH_RSS_NONFRAG_IPV6_TCP, }, [MLX5_EXPANSION_VXLAN] = { .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH, MLX5_EXPANSION_IPV4, MLX5_EXPANSION_IPV6), .type = RTE_FLOW_ITEM_TYPE_VXLAN, }, [MLX5_EXPANSION_VXLAN_GPE] = { .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_ETH, MLX5_EXPANSION_IPV4, MLX5_EXPANSION_IPV6), .type = RTE_FLOW_ITEM_TYPE_VXLAN_GPE, }, [MLX5_EXPANSION_GRE] = { .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4), .type = RTE_FLOW_ITEM_TYPE_GRE, }, [MLX5_EXPANSION_MPLS] = { .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4, MLX5_EXPANSION_IPV6), .type = RTE_FLOW_ITEM_TYPE_MPLS, }, [MLX5_EXPANSION_ETH] = { .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4, MLX5_EXPANSION_IPV6), .type = RTE_FLOW_ITEM_TYPE_ETH, }, [MLX5_EXPANSION_ETH_VLAN] = { .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_VLAN), .type = RTE_FLOW_ITEM_TYPE_ETH, }, [MLX5_EXPANSION_VLAN] = { .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4, MLX5_EXPANSION_IPV6), .type = RTE_FLOW_ITEM_TYPE_VLAN, }, [MLX5_EXPANSION_IPV4] = { .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV4_UDP, MLX5_EXPANSION_IPV4_TCP), .type = RTE_FLOW_ITEM_TYPE_IPV4, .rss_types = ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4 | ETH_RSS_NONFRAG_IPV4_OTHER, }, [MLX5_EXPANSION_IPV4_UDP] = { .type = RTE_FLOW_ITEM_TYPE_UDP, .rss_types = ETH_RSS_NONFRAG_IPV4_UDP, }, [MLX5_EXPANSION_IPV4_TCP] = { .type = RTE_FLOW_ITEM_TYPE_TCP, .rss_types = ETH_RSS_NONFRAG_IPV4_TCP, }, [MLX5_EXPANSION_IPV6] = { .next = MLX5_FLOW_EXPAND_RSS_NEXT(MLX5_EXPANSION_IPV6_UDP, MLX5_EXPANSION_IPV6_TCP), .type = RTE_FLOW_ITEM_TYPE_IPV6, .rss_types = ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6 | ETH_RSS_NONFRAG_IPV6_OTHER, }, [MLX5_EXPANSION_IPV6_UDP] = { .type = RTE_FLOW_ITEM_TYPE_UDP, .rss_types = ETH_RSS_NONFRAG_IPV6_UDP, }, [MLX5_EXPANSION_IPV6_TCP] = { .type = RTE_FLOW_ITEM_TYPE_TCP, .rss_types = ETH_RSS_NONFRAG_IPV6_TCP, }, }; static struct rte_flow_shared_action * mlx5_shared_action_create(struct rte_eth_dev *dev, const struct rte_flow_shared_action_conf *conf, const struct rte_flow_action *action, struct rte_flow_error *error); static int mlx5_shared_action_destroy (struct rte_eth_dev *dev, struct rte_flow_shared_action *shared_action, struct rte_flow_error *error); static int mlx5_shared_action_update (struct rte_eth_dev *dev, struct rte_flow_shared_action *shared_action, const struct rte_flow_action *action, struct rte_flow_error *error); static int mlx5_shared_action_query (struct rte_eth_dev *dev, const struct rte_flow_shared_action *action, void *data, struct rte_flow_error *error); static int mlx5_flow_tunnel_decap_set(struct rte_eth_dev *dev, struct rte_flow_tunnel *app_tunnel, struct rte_flow_action **actions, uint32_t *num_of_actions, struct rte_flow_error *error); static int mlx5_flow_tunnel_match(struct rte_eth_dev *dev, struct rte_flow_tunnel *app_tunnel, struct rte_flow_item **items, uint32_t *num_of_items, struct rte_flow_error *error); static int mlx5_flow_tunnel_item_release(struct rte_eth_dev *dev, struct rte_flow_item *pmd_items, uint32_t num_items, struct rte_flow_error *err); static int mlx5_flow_tunnel_action_release(struct rte_eth_dev *dev, struct rte_flow_action *pmd_actions, uint32_t num_actions, struct rte_flow_error *err); static int mlx5_flow_tunnel_get_restore_info(struct rte_eth_dev *dev, struct rte_mbuf *m, struct rte_flow_restore_info *info, struct rte_flow_error *err); static const struct rte_flow_ops mlx5_flow_ops = { .validate = mlx5_flow_validate, .create = mlx5_flow_create, .destroy = mlx5_flow_destroy, .flush = mlx5_flow_flush, .isolate = mlx5_flow_isolate, .query = mlx5_flow_query, .dev_dump = mlx5_flow_dev_dump, .get_aged_flows = mlx5_flow_get_aged_flows, .shared_action_create = mlx5_shared_action_create, .shared_action_destroy = mlx5_shared_action_destroy, .shared_action_update = mlx5_shared_action_update, .shared_action_query = mlx5_shared_action_query, .tunnel_decap_set = mlx5_flow_tunnel_decap_set, .tunnel_match = mlx5_flow_tunnel_match, .tunnel_action_decap_release = mlx5_flow_tunnel_action_release, .tunnel_item_release = mlx5_flow_tunnel_item_release, .get_restore_info = mlx5_flow_tunnel_get_restore_info, }; /* Tunnel information. */ struct mlx5_flow_tunnel_info { uint64_t tunnel; /**< Tunnel bit (see MLX5_FLOW_*). */ uint32_t ptype; /**< Tunnel Ptype (see RTE_PTYPE_*). */ }; static struct mlx5_flow_tunnel_info tunnels_info[] = { { .tunnel = MLX5_FLOW_LAYER_VXLAN, .ptype = RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_L4_UDP, }, { .tunnel = MLX5_FLOW_LAYER_GENEVE, .ptype = RTE_PTYPE_TUNNEL_GENEVE | RTE_PTYPE_L4_UDP, }, { .tunnel = MLX5_FLOW_LAYER_VXLAN_GPE, .ptype = RTE_PTYPE_TUNNEL_VXLAN_GPE | RTE_PTYPE_L4_UDP, }, { .tunnel = MLX5_FLOW_LAYER_GRE, .ptype = RTE_PTYPE_TUNNEL_GRE, }, { .tunnel = MLX5_FLOW_LAYER_MPLS | MLX5_FLOW_LAYER_OUTER_L4_UDP, .ptype = RTE_PTYPE_TUNNEL_MPLS_IN_UDP | RTE_PTYPE_L4_UDP, }, { .tunnel = MLX5_FLOW_LAYER_MPLS, .ptype = RTE_PTYPE_TUNNEL_MPLS_IN_GRE, }, { .tunnel = MLX5_FLOW_LAYER_NVGRE, .ptype = RTE_PTYPE_TUNNEL_NVGRE, }, { .tunnel = MLX5_FLOW_LAYER_IPIP, .ptype = RTE_PTYPE_TUNNEL_IP, }, { .tunnel = MLX5_FLOW_LAYER_IPV6_ENCAP, .ptype = RTE_PTYPE_TUNNEL_IP, }, { .tunnel = MLX5_FLOW_LAYER_GTP, .ptype = RTE_PTYPE_TUNNEL_GTPU, }, }; /** * Translate tag ID to register. * * @param[in] dev * Pointer to the Ethernet device structure. * @param[in] feature * The feature that request the register. * @param[in] id * The request register ID. * @param[out] error * Error description in case of any. * * @return * The request register on success, a negative errno * value otherwise and rte_errno is set. */ int mlx5_flow_get_reg_id(struct rte_eth_dev *dev, enum mlx5_feature_name feature, uint32_t id, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_dev_config *config = &priv->config; enum modify_reg start_reg; bool skip_mtr_reg = false; switch (feature) { case MLX5_HAIRPIN_RX: return REG_B; case MLX5_HAIRPIN_TX: return REG_A; case MLX5_METADATA_RX: switch (config->dv_xmeta_en) { case MLX5_XMETA_MODE_LEGACY: return REG_B; case MLX5_XMETA_MODE_META16: return REG_C_0; case MLX5_XMETA_MODE_META32: return REG_C_1; } break; case MLX5_METADATA_TX: return REG_A; case MLX5_METADATA_FDB: switch (config->dv_xmeta_en) { case MLX5_XMETA_MODE_LEGACY: return REG_NON; case MLX5_XMETA_MODE_META16: return REG_C_0; case MLX5_XMETA_MODE_META32: return REG_C_1; } break; case MLX5_FLOW_MARK: switch (config->dv_xmeta_en) { case MLX5_XMETA_MODE_LEGACY: return REG_NON; case MLX5_XMETA_MODE_META16: return REG_C_1; case MLX5_XMETA_MODE_META32: return REG_C_0; } break; case MLX5_MTR_SFX: /* * If meter color and flow match share one register, flow match * should use the meter color register for match. */ if (priv->mtr_reg_share) return priv->mtr_color_reg; else return priv->mtr_color_reg != REG_C_2 ? REG_C_2 : REG_C_3; case MLX5_MTR_COLOR: case MLX5_ASO_FLOW_HIT: /* Both features use the same REG_C. */ MLX5_ASSERT(priv->mtr_color_reg != REG_NON); return priv->mtr_color_reg; case MLX5_COPY_MARK: /* * Metadata COPY_MARK register using is in meter suffix sub * flow while with meter. It's safe to share the same register. */ return priv->mtr_color_reg != REG_C_2 ? REG_C_2 : REG_C_3; case MLX5_APP_TAG: /* * If meter is enable, it will engage the register for color * match and flow match. If meter color match is not using the * REG_C_2, need to skip the REG_C_x be used by meter color * match. * If meter is disable, free to use all available registers. */ start_reg = priv->mtr_color_reg != REG_C_2 ? REG_C_2 : (priv->mtr_reg_share ? REG_C_3 : REG_C_4); skip_mtr_reg = !!(priv->mtr_en && start_reg == REG_C_2); if (id > (uint32_t)(REG_C_7 - start_reg)) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, NULL, "invalid tag id"); if (config->flow_mreg_c[id + start_reg - REG_C_0] == REG_NON) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, NULL, "unsupported tag id"); /* * This case means meter is using the REG_C_x great than 2. * Take care not to conflict with meter color REG_C_x. * If the available index REG_C_y >= REG_C_x, skip the * color register. */ if (skip_mtr_reg && config->flow_mreg_c [id + start_reg - REG_C_0] >= priv->mtr_color_reg) { if (id >= (uint32_t)(REG_C_7 - start_reg)) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, NULL, "invalid tag id"); if (config->flow_mreg_c [id + 1 + start_reg - REG_C_0] != REG_NON) return config->flow_mreg_c [id + 1 + start_reg - REG_C_0]; return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, NULL, "unsupported tag id"); } return config->flow_mreg_c[id + start_reg - REG_C_0]; } MLX5_ASSERT(false); return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, "invalid feature name"); } /** * Check extensive flow metadata register support. * * @param dev * Pointer to rte_eth_dev structure. * * @return * True if device supports extensive flow metadata register, otherwise false. */ bool mlx5_flow_ext_mreg_supported(struct rte_eth_dev *dev) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_dev_config *config = &priv->config; /* * Having available reg_c can be regarded inclusively as supporting * extensive flow metadata register, which could mean, * - metadata register copy action by modify header. * - 16 modify header actions is supported. * - reg_c's are preserved across different domain (FDB and NIC) on * packet loopback by flow lookup miss. */ return config->flow_mreg_c[2] != REG_NON; } /** * Get the lowest priority. * * @param[in] dev * Pointer to the Ethernet device structure. * @param[in] attributes * Pointer to device flow rule attributes. * * @return * The value of lowest priority of flow. */ uint32_t mlx5_get_lowest_priority(struct rte_eth_dev *dev, const struct rte_flow_attr *attr) { struct mlx5_priv *priv = dev->data->dev_private; if (!attr->group && !attr->transfer) return priv->config.flow_prio - 2; return MLX5_NON_ROOT_FLOW_MAX_PRIO - 1; } /** * Calculate matcher priority of the flow. * * @param[in] dev * Pointer to the Ethernet device structure. * @param[in] attr * Pointer to device flow rule attributes. * @param[in] subpriority * The priority based on the items. * @return * The matcher priority of the flow. */ uint16_t mlx5_get_matcher_priority(struct rte_eth_dev *dev, const struct rte_flow_attr *attr, uint32_t subpriority) { uint16_t priority = (uint16_t)attr->priority; struct mlx5_priv *priv = dev->data->dev_private; if (!attr->group && !attr->transfer) { if (attr->priority == MLX5_FLOW_LOWEST_PRIO_INDICATOR) priority = priv->config.flow_prio - 1; return mlx5_os_flow_adjust_priority(dev, priority, subpriority); } if (attr->priority == MLX5_FLOW_LOWEST_PRIO_INDICATOR) priority = MLX5_NON_ROOT_FLOW_MAX_PRIO; return priority * 3 + subpriority; } /** * Verify the @p item specifications (spec, last, mask) are compatible with the * NIC capabilities. * * @param[in] item * Item specification. * @param[in] mask * @p item->mask or flow default bit-masks. * @param[in] nic_mask * Bit-masks covering supported fields by the NIC to compare with user mask. * @param[in] size * Bit-masks size in bytes. * @param[in] range_accepted * True if range of values is accepted for specific fields, false otherwise. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_item_acceptable(const struct rte_flow_item *item, const uint8_t *mask, const uint8_t *nic_mask, unsigned int size, bool range_accepted, struct rte_flow_error *error) { unsigned int i; MLX5_ASSERT(nic_mask); for (i = 0; i < size; ++i) if ((nic_mask[i] | mask[i]) != nic_mask[i]) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "mask enables non supported" " bits"); if (!item->spec && (item->mask || item->last)) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "mask/last without a spec is not" " supported"); if (item->spec && item->last && !range_accepted) { uint8_t spec[size]; uint8_t last[size]; unsigned int i; int ret; for (i = 0; i < size; ++i) { spec[i] = ((const uint8_t *)item->spec)[i] & mask[i]; last[i] = ((const uint8_t *)item->last)[i] & mask[i]; } ret = memcmp(spec, last, size); if (ret != 0) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "range is not valid"); } return 0; } /** * Adjust the hash fields according to the @p flow information. * * @param[in] dev_flow. * Pointer to the mlx5_flow. * @param[in] tunnel * 1 when the hash field is for a tunnel item. * @param[in] layer_types * ETH_RSS_* types. * @param[in] hash_fields * Item hash fields. * * @return * The hash fields that should be used. */ uint64_t mlx5_flow_hashfields_adjust(struct mlx5_flow_rss_desc *rss_desc, int tunnel __rte_unused, uint64_t layer_types, uint64_t hash_fields) { #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT int rss_request_inner = rss_desc->level >= 2; /* Check RSS hash level for tunnel. */ if (tunnel && rss_request_inner) hash_fields |= IBV_RX_HASH_INNER; else if (tunnel || rss_request_inner) return 0; #endif /* Check if requested layer matches RSS hash fields. */ if (!(rss_desc->types & layer_types)) return 0; return hash_fields; } /** * Lookup and set the ptype in the data Rx part. A single Ptype can be used, * if several tunnel rules are used on this queue, the tunnel ptype will be * cleared. * * @param rxq_ctrl * Rx queue to update. */ static void flow_rxq_tunnel_ptype_update(struct mlx5_rxq_ctrl *rxq_ctrl) { unsigned int i; uint32_t tunnel_ptype = 0; /* Look up for the ptype to use. */ for (i = 0; i != MLX5_FLOW_TUNNEL; ++i) { if (!rxq_ctrl->flow_tunnels_n[i]) continue; if (!tunnel_ptype) { tunnel_ptype = tunnels_info[i].ptype; } else { tunnel_ptype = 0; break; } } rxq_ctrl->rxq.tunnel = tunnel_ptype; } /** * Set the Rx queue flags (Mark/Flag and Tunnel Ptypes) according to the devive * flow. * * @param[in] dev * Pointer to the Ethernet device structure. * @param[in] dev_handle * Pointer to device flow handle structure. */ static void flow_drv_rxq_flags_set(struct rte_eth_dev *dev, struct mlx5_flow_handle *dev_handle) { struct mlx5_priv *priv = dev->data->dev_private; const int mark = dev_handle->mark; const int tunnel = !!(dev_handle->layers & MLX5_FLOW_LAYER_TUNNEL); struct mlx5_ind_table_obj *ind_tbl = NULL; unsigned int i; if (dev_handle->fate_action == MLX5_FLOW_FATE_QUEUE) { struct mlx5_hrxq *hrxq; hrxq = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_HRXQ], dev_handle->rix_hrxq); if (hrxq) ind_tbl = hrxq->ind_table; } else if (dev_handle->fate_action == MLX5_FLOW_FATE_SHARED_RSS) { struct mlx5_shared_action_rss *shared_rss; shared_rss = mlx5_ipool_get (priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS], dev_handle->rix_srss); if (shared_rss) ind_tbl = shared_rss->ind_tbl; } if (!ind_tbl) return; for (i = 0; i != ind_tbl->queues_n; ++i) { int idx = ind_tbl->queues[i]; struct mlx5_rxq_ctrl *rxq_ctrl = container_of((*priv->rxqs)[idx], struct mlx5_rxq_ctrl, rxq); /* * To support metadata register copy on Tx loopback, * this must be always enabled (metadata may arive * from other port - not from local flows only. */ if (priv->config.dv_flow_en && priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY && mlx5_flow_ext_mreg_supported(dev)) { rxq_ctrl->rxq.mark = 1; rxq_ctrl->flow_mark_n = 1; } else if (mark) { rxq_ctrl->rxq.mark = 1; rxq_ctrl->flow_mark_n++; } if (tunnel) { unsigned int j; /* Increase the counter matching the flow. */ for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) { if ((tunnels_info[j].tunnel & dev_handle->layers) == tunnels_info[j].tunnel) { rxq_ctrl->flow_tunnels_n[j]++; break; } } flow_rxq_tunnel_ptype_update(rxq_ctrl); } } } /** * Set the Rx queue flags (Mark/Flag and Tunnel Ptypes) for a flow * * @param[in] dev * Pointer to the Ethernet device structure. * @param[in] flow * Pointer to flow structure. */ static void flow_rxq_flags_set(struct rte_eth_dev *dev, struct rte_flow *flow) { struct mlx5_priv *priv = dev->data->dev_private; uint32_t handle_idx; struct mlx5_flow_handle *dev_handle; SILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW], flow->dev_handles, handle_idx, dev_handle, next) flow_drv_rxq_flags_set(dev, dev_handle); } /** * Clear the Rx queue flags (Mark/Flag and Tunnel Ptype) associated with the * device flow if no other flow uses it with the same kind of request. * * @param dev * Pointer to Ethernet device. * @param[in] dev_handle * Pointer to the device flow handle structure. */ static void flow_drv_rxq_flags_trim(struct rte_eth_dev *dev, struct mlx5_flow_handle *dev_handle) { struct mlx5_priv *priv = dev->data->dev_private; const int mark = dev_handle->mark; const int tunnel = !!(dev_handle->layers & MLX5_FLOW_LAYER_TUNNEL); struct mlx5_ind_table_obj *ind_tbl = NULL; unsigned int i; if (dev_handle->fate_action == MLX5_FLOW_FATE_QUEUE) { struct mlx5_hrxq *hrxq; hrxq = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_HRXQ], dev_handle->rix_hrxq); if (hrxq) ind_tbl = hrxq->ind_table; } else if (dev_handle->fate_action == MLX5_FLOW_FATE_SHARED_RSS) { struct mlx5_shared_action_rss *shared_rss; shared_rss = mlx5_ipool_get (priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS], dev_handle->rix_srss); if (shared_rss) ind_tbl = shared_rss->ind_tbl; } if (!ind_tbl) return; MLX5_ASSERT(dev->data->dev_started); for (i = 0; i != ind_tbl->queues_n; ++i) { int idx = ind_tbl->queues[i]; struct mlx5_rxq_ctrl *rxq_ctrl = container_of((*priv->rxqs)[idx], struct mlx5_rxq_ctrl, rxq); if (priv->config.dv_flow_en && priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY && mlx5_flow_ext_mreg_supported(dev)) { rxq_ctrl->rxq.mark = 1; rxq_ctrl->flow_mark_n = 1; } else if (mark) { rxq_ctrl->flow_mark_n--; rxq_ctrl->rxq.mark = !!rxq_ctrl->flow_mark_n; } if (tunnel) { unsigned int j; /* Decrease the counter matching the flow. */ for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) { if ((tunnels_info[j].tunnel & dev_handle->layers) == tunnels_info[j].tunnel) { rxq_ctrl->flow_tunnels_n[j]--; break; } } flow_rxq_tunnel_ptype_update(rxq_ctrl); } } } /** * Clear the Rx queue flags (Mark/Flag and Tunnel Ptype) associated with the * @p flow if no other flow uses it with the same kind of request. * * @param dev * Pointer to Ethernet device. * @param[in] flow * Pointer to the flow. */ static void flow_rxq_flags_trim(struct rte_eth_dev *dev, struct rte_flow *flow) { struct mlx5_priv *priv = dev->data->dev_private; uint32_t handle_idx; struct mlx5_flow_handle *dev_handle; SILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW], flow->dev_handles, handle_idx, dev_handle, next) flow_drv_rxq_flags_trim(dev, dev_handle); } /** * Clear the Mark/Flag and Tunnel ptype information in all Rx queues. * * @param dev * Pointer to Ethernet device. */ static void flow_rxq_flags_clear(struct rte_eth_dev *dev) { struct mlx5_priv *priv = dev->data->dev_private; unsigned int i; for (i = 0; i != priv->rxqs_n; ++i) { struct mlx5_rxq_ctrl *rxq_ctrl; unsigned int j; if (!(*priv->rxqs)[i]) continue; rxq_ctrl = container_of((*priv->rxqs)[i], struct mlx5_rxq_ctrl, rxq); rxq_ctrl->flow_mark_n = 0; rxq_ctrl->rxq.mark = 0; for (j = 0; j != MLX5_FLOW_TUNNEL; ++j) rxq_ctrl->flow_tunnels_n[j] = 0; rxq_ctrl->rxq.tunnel = 0; } } /** * Set the Rx queue dynamic metadata (mask and offset) for a flow * * @param[in] dev * Pointer to the Ethernet device structure. */ void mlx5_flow_rxq_dynf_metadata_set(struct rte_eth_dev *dev) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_rxq_data *data; unsigned int i; for (i = 0; i != priv->rxqs_n; ++i) { if (!(*priv->rxqs)[i]) continue; data = (*priv->rxqs)[i]; if (!rte_flow_dynf_metadata_avail()) { data->dynf_meta = 0; data->flow_meta_mask = 0; data->flow_meta_offset = -1; } else { data->dynf_meta = 1; data->flow_meta_mask = rte_flow_dynf_metadata_mask; data->flow_meta_offset = rte_flow_dynf_metadata_offs; } } } /* * return a pointer to the desired action in the list of actions. * * @param[in] actions * The list of actions to search the action in. * @param[in] action * The action to find. * * @return * Pointer to the action in the list, if found. NULL otherwise. */ const struct rte_flow_action * mlx5_flow_find_action(const struct rte_flow_action *actions, enum rte_flow_action_type action) { if (actions == NULL) return NULL; for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) if (actions->type == action) return actions; return NULL; } /* * Validate the flag action. * * @param[in] action_flags * Bit-fields that holds the actions detected until now. * @param[in] attr * Attributes of flow that includes this action. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_action_flag(uint64_t action_flags, const struct rte_flow_attr *attr, struct rte_flow_error *error) { if (action_flags & MLX5_FLOW_ACTION_MARK) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, NULL, "can't mark and flag in same flow"); if (action_flags & MLX5_FLOW_ACTION_FLAG) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, NULL, "can't have 2 flag" " actions in same flow"); if (attr->egress) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL, "flag action not supported for " "egress"); return 0; } /* * Validate the mark action. * * @param[in] action * Pointer to the queue action. * @param[in] action_flags * Bit-fields that holds the actions detected until now. * @param[in] attr * Attributes of flow that includes this action. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_action_mark(const struct rte_flow_action *action, uint64_t action_flags, const struct rte_flow_attr *attr, struct rte_flow_error *error) { const struct rte_flow_action_mark *mark = action->conf; if (!mark) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, action, "configuration cannot be null"); if (mark->id >= MLX5_FLOW_MARK_MAX) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF, &mark->id, "mark id must in 0 <= id < " RTE_STR(MLX5_FLOW_MARK_MAX)); if (action_flags & MLX5_FLOW_ACTION_FLAG) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, NULL, "can't flag and mark in same flow"); if (action_flags & MLX5_FLOW_ACTION_MARK) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, NULL, "can't have 2 mark actions in same" " flow"); if (attr->egress) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL, "mark action not supported for " "egress"); return 0; } /* * Validate the drop action. * * @param[in] action_flags * Bit-fields that holds the actions detected until now. * @param[in] attr * Attributes of flow that includes this action. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_action_drop(uint64_t action_flags __rte_unused, const struct rte_flow_attr *attr, struct rte_flow_error *error) { if (attr->egress) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL, "drop action not supported for " "egress"); return 0; } /* * Validate the queue action. * * @param[in] action * Pointer to the queue action. * @param[in] action_flags * Bit-fields that holds the actions detected until now. * @param[in] dev * Pointer to the Ethernet device structure. * @param[in] attr * Attributes of flow that includes this action. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_action_queue(const struct rte_flow_action *action, uint64_t action_flags, struct rte_eth_dev *dev, const struct rte_flow_attr *attr, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; const struct rte_flow_action_queue *queue = action->conf; if (action_flags & MLX5_FLOW_FATE_ACTIONS) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, NULL, "can't have 2 fate actions in" " same flow"); if (!priv->rxqs_n) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL, "No Rx queues configured"); if (queue->index >= priv->rxqs_n) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF, &queue->index, "queue index out of range"); if (!(*priv->rxqs)[queue->index]) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF, &queue->index, "queue is not configured"); if (attr->egress) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL, "queue action not supported for " "egress"); return 0; } /* * Validate the rss action. * * @param[in] dev * Pointer to the Ethernet device structure. * @param[in] action * Pointer to the queue action. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_validate_action_rss(struct rte_eth_dev *dev, const struct rte_flow_action *action, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; const struct rte_flow_action_rss *rss = action->conf; enum mlx5_rxq_type rxq_type = MLX5_RXQ_TYPE_UNDEFINED; unsigned int i; if (rss->func != RTE_ETH_HASH_FUNCTION_DEFAULT && rss->func != RTE_ETH_HASH_FUNCTION_TOEPLITZ) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION_CONF, &rss->func, "RSS hash function not supported"); #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT if (rss->level > 2) #else if (rss->level > 1) #endif return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION_CONF, &rss->level, "tunnel RSS is not supported"); /* allow RSS key_len 0 in case of NULL (default) RSS key. */ if (rss->key_len == 0 && rss->key != NULL) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION_CONF, &rss->key_len, "RSS hash key length 0"); if (rss->key_len > 0 && rss->key_len < MLX5_RSS_HASH_KEY_LEN) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION_CONF, &rss->key_len, "RSS hash key too small"); if (rss->key_len > MLX5_RSS_HASH_KEY_LEN) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION_CONF, &rss->key_len, "RSS hash key too large"); if (rss->queue_num > priv->config.ind_table_max_size) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION_CONF, &rss->queue_num, "number of queues too large"); if (rss->types & MLX5_RSS_HF_MASK) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION_CONF, &rss->types, "some RSS protocols are not" " supported"); if ((rss->types & (ETH_RSS_L3_SRC_ONLY | ETH_RSS_L3_DST_ONLY)) && !(rss->types & ETH_RSS_IP)) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL, "L3 partial RSS requested but L3 RSS" " type not specified"); if ((rss->types & (ETH_RSS_L4_SRC_ONLY | ETH_RSS_L4_DST_ONLY)) && !(rss->types & (ETH_RSS_UDP | ETH_RSS_TCP))) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL, "L4 partial RSS requested but L4 RSS" " type not specified"); if (!priv->rxqs_n) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL, "No Rx queues configured"); if (!rss->queue_num) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL, "No queues configured"); for (i = 0; i != rss->queue_num; ++i) { struct mlx5_rxq_ctrl *rxq_ctrl; if (rss->queue[i] >= priv->rxqs_n) return rte_flow_error_set (error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF, &rss->queue[i], "queue index out of range"); if (!(*priv->rxqs)[rss->queue[i]]) return rte_flow_error_set (error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF, &rss->queue[i], "queue is not configured"); rxq_ctrl = container_of((*priv->rxqs)[rss->queue[i]], struct mlx5_rxq_ctrl, rxq); if (i == 0) rxq_type = rxq_ctrl->type; if (rxq_type != rxq_ctrl->type) return rte_flow_error_set (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION_CONF, &rss->queue[i], "combining hairpin and regular RSS queues is not supported"); } return 0; } /* * Validate the rss action. * * @param[in] action * Pointer to the queue action. * @param[in] action_flags * Bit-fields that holds the actions detected until now. * @param[in] dev * Pointer to the Ethernet device structure. * @param[in] attr * Attributes of flow that includes this action. * @param[in] item_flags * Items that were detected. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_action_rss(const struct rte_flow_action *action, uint64_t action_flags, struct rte_eth_dev *dev, const struct rte_flow_attr *attr, uint64_t item_flags, struct rte_flow_error *error) { const struct rte_flow_action_rss *rss = action->conf; int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); int ret; if (action_flags & MLX5_FLOW_FATE_ACTIONS) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, NULL, "can't have 2 fate actions" " in same flow"); ret = mlx5_validate_action_rss(dev, action, error); if (ret) return ret; if (attr->egress) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL, "rss action not supported for " "egress"); if (rss->level > 1 && !tunnel) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL, "inner RSS is not supported for " "non-tunnel flows"); if ((item_flags & MLX5_FLOW_LAYER_ECPRI) && !(item_flags & MLX5_FLOW_LAYER_INNER_L4_UDP)) { return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL, "RSS on eCPRI is not supported now"); } return 0; } /* * Validate the default miss action. * * @param[in] action_flags * Bit-fields that holds the actions detected until now. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_action_default_miss(uint64_t action_flags, const struct rte_flow_attr *attr, struct rte_flow_error *error) { if (action_flags & MLX5_FLOW_FATE_ACTIONS) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, NULL, "can't have 2 fate actions in" " same flow"); if (attr->egress) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL, "default miss action not supported " "for egress"); if (attr->group) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_GROUP, NULL, "only group 0 is supported"); if (attr->transfer) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER, NULL, "transfer is not supported"); return 0; } /* * Validate the count action. * * @param[in] dev * Pointer to the Ethernet device structure. * @param[in] attr * Attributes of flow that includes this action. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_action_count(struct rte_eth_dev *dev __rte_unused, const struct rte_flow_attr *attr, struct rte_flow_error *error) { if (attr->egress) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL, "count action not supported for " "egress"); return 0; } /** * Verify the @p attributes will be correctly understood by the NIC and store * them in the @p flow if everything is correct. * * @param[in] dev * Pointer to the Ethernet device structure. * @param[in] attributes * Pointer to flow attributes * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_attributes(struct rte_eth_dev *dev, const struct rte_flow_attr *attributes, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; uint32_t priority_max = priv->config.flow_prio - 1; if (attributes->group) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_GROUP, NULL, "groups is not supported"); if (attributes->priority != MLX5_FLOW_LOWEST_PRIO_INDICATOR && attributes->priority >= priority_max) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY, NULL, "priority out of range"); if (attributes->egress) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL, "egress is not supported"); if (attributes->transfer && !priv->config.dv_esw_en) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER, NULL, "transfer is not supported"); if (!attributes->ingress) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ATTR_INGRESS, NULL, "ingress attribute is mandatory"); return 0; } /** * Validate ICMP6 item. * * @param[in] item * Item specification. * @param[in] item_flags * Bit-fields that holds the items detected until now. * @param[in] ext_vlan_sup * Whether extended VLAN features are supported or not. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_item_icmp6(const struct rte_flow_item *item, uint64_t item_flags, uint8_t target_protocol, struct rte_flow_error *error) { const struct rte_flow_item_icmp6 *mask = item->mask; const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV6 : MLX5_FLOW_LAYER_OUTER_L3_IPV6; const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 : MLX5_FLOW_LAYER_OUTER_L4; int ret; if (target_protocol != 0xFF && target_protocol != IPPROTO_ICMPV6) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "protocol filtering not compatible" " with ICMP6 layer"); if (!(item_flags & l3m)) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "IPv6 is mandatory to filter on" " ICMP6"); if (item_flags & l4m) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "multiple L4 layers not supported"); if (!mask) mask = &rte_flow_item_icmp6_mask; ret = mlx5_flow_item_acceptable (item, (const uint8_t *)mask, (const uint8_t *)&rte_flow_item_icmp6_mask, sizeof(struct rte_flow_item_icmp6), MLX5_ITEM_RANGE_NOT_ACCEPTED, error); if (ret < 0) return ret; return 0; } /** * Validate ICMP item. * * @param[in] item * Item specification. * @param[in] item_flags * Bit-fields that holds the items detected until now. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_item_icmp(const struct rte_flow_item *item, uint64_t item_flags, uint8_t target_protocol, struct rte_flow_error *error) { const struct rte_flow_item_icmp *mask = item->mask; const struct rte_flow_item_icmp nic_mask = { .hdr.icmp_type = 0xff, .hdr.icmp_code = 0xff, .hdr.icmp_ident = RTE_BE16(0xffff), .hdr.icmp_seq_nb = RTE_BE16(0xffff), }; const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3_IPV4 : MLX5_FLOW_LAYER_OUTER_L3_IPV4; const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 : MLX5_FLOW_LAYER_OUTER_L4; int ret; if (target_protocol != 0xFF && target_protocol != IPPROTO_ICMP) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "protocol filtering not compatible" " with ICMP layer"); if (!(item_flags & l3m)) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "IPv4 is mandatory to filter" " on ICMP"); if (item_flags & l4m) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "multiple L4 layers not supported"); if (!mask) mask = &nic_mask; ret = mlx5_flow_item_acceptable (item, (const uint8_t *)mask, (const uint8_t *)&nic_mask, sizeof(struct rte_flow_item_icmp), MLX5_ITEM_RANGE_NOT_ACCEPTED, error); if (ret < 0) return ret; return 0; } /** * Validate Ethernet item. * * @param[in] item * Item specification. * @param[in] item_flags * Bit-fields that holds the items detected until now. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_item_eth(const struct rte_flow_item *item, uint64_t item_flags, bool ext_vlan_sup, struct rte_flow_error *error) { const struct rte_flow_item_eth *mask = item->mask; const struct rte_flow_item_eth nic_mask = { .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff", .src.addr_bytes = "\xff\xff\xff\xff\xff\xff", .type = RTE_BE16(0xffff), .has_vlan = ext_vlan_sup ? 1 : 0, }; int ret; int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); const uint64_t ethm = tunnel ? MLX5_FLOW_LAYER_INNER_L2 : MLX5_FLOW_LAYER_OUTER_L2; if (item_flags & ethm) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "multiple L2 layers not supported"); if ((!tunnel && (item_flags & MLX5_FLOW_LAYER_OUTER_L3)) || (tunnel && (item_flags & MLX5_FLOW_LAYER_INNER_L3))) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "L2 layer should not follow " "L3 layers"); if ((!tunnel && (item_flags & MLX5_FLOW_LAYER_OUTER_VLAN)) || (tunnel && (item_flags & MLX5_FLOW_LAYER_INNER_VLAN))) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "L2 layer should not follow VLAN"); if (!mask) mask = &rte_flow_item_eth_mask; ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask, (const uint8_t *)&nic_mask, sizeof(struct rte_flow_item_eth), MLX5_ITEM_RANGE_NOT_ACCEPTED, error); return ret; } /** * Validate VLAN item. * * @param[in] item * Item specification. * @param[in] item_flags * Bit-fields that holds the items detected until now. * @param[in] dev * Ethernet device flow is being created on. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_item_vlan(const struct rte_flow_item *item, uint64_t item_flags, struct rte_eth_dev *dev, struct rte_flow_error *error) { const struct rte_flow_item_vlan *spec = item->spec; const struct rte_flow_item_vlan *mask = item->mask; const struct rte_flow_item_vlan nic_mask = { .tci = RTE_BE16(UINT16_MAX), .inner_type = RTE_BE16(UINT16_MAX), }; uint16_t vlan_tag = 0; const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); int ret; const uint64_t l34m = tunnel ? (MLX5_FLOW_LAYER_INNER_L3 | MLX5_FLOW_LAYER_INNER_L4) : (MLX5_FLOW_LAYER_OUTER_L3 | MLX5_FLOW_LAYER_OUTER_L4); const uint64_t vlanm = tunnel ? MLX5_FLOW_LAYER_INNER_VLAN : MLX5_FLOW_LAYER_OUTER_VLAN; if (item_flags & vlanm) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "multiple VLAN layers not supported"); else if ((item_flags & l34m) != 0) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "VLAN cannot follow L3/L4 layer"); if (!mask) mask = &rte_flow_item_vlan_mask; ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask, (const uint8_t *)&nic_mask, sizeof(struct rte_flow_item_vlan), MLX5_ITEM_RANGE_NOT_ACCEPTED, error); if (ret) return ret; if (!tunnel && mask->tci != RTE_BE16(0x0fff)) { struct mlx5_priv *priv = dev->data->dev_private; if (priv->vmwa_context) { /* * Non-NULL context means we have a virtual machine * and SR-IOV enabled, we have to create VLAN interface * to make hypervisor to setup E-Switch vport * context correctly. We avoid creating the multiple * VLAN interfaces, so we cannot support VLAN tag mask. */ return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "VLAN tag mask is not" " supported in virtual" " environment"); } } if (spec) { vlan_tag = spec->tci; vlan_tag &= mask->tci; } /* * From verbs perspective an empty VLAN is equivalent * to a packet without VLAN layer. */ if (!vlan_tag) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM_SPEC, item->spec, "VLAN cannot be empty"); return 0; } /** * Validate IPV4 item. * * @param[in] item * Item specification. * @param[in] item_flags * Bit-fields that holds the items detected until now. * @param[in] last_item * Previous validated item in the pattern items. * @param[in] ether_type * Type in the ethernet layer header (including dot1q). * @param[in] acc_mask * Acceptable mask, if NULL default internal default mask * will be used to check whether item fields are supported. * @param[in] range_accepted * True if range of values is accepted for specific fields, false otherwise. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_item_ipv4(const struct rte_flow_item *item, uint64_t item_flags, uint64_t last_item, uint16_t ether_type, const struct rte_flow_item_ipv4 *acc_mask, bool range_accepted, struct rte_flow_error *error) { const struct rte_flow_item_ipv4 *mask = item->mask; const struct rte_flow_item_ipv4 *spec = item->spec; const struct rte_flow_item_ipv4 nic_mask = { .hdr = { .src_addr = RTE_BE32(0xffffffff), .dst_addr = RTE_BE32(0xffffffff), .type_of_service = 0xff, .next_proto_id = 0xff, }, }; const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 : MLX5_FLOW_LAYER_OUTER_L3; const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 : MLX5_FLOW_LAYER_OUTER_L4; int ret; uint8_t next_proto = 0xFF; const uint64_t l2_vlan = (MLX5_FLOW_LAYER_L2 | MLX5_FLOW_LAYER_OUTER_VLAN | MLX5_FLOW_LAYER_INNER_VLAN); if ((last_item & l2_vlan) && ether_type && ether_type != RTE_ETHER_TYPE_IPV4) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "IPv4 cannot follow L2/VLAN layer " "which ether type is not IPv4"); if (item_flags & MLX5_FLOW_LAYER_IPIP) { if (mask && spec) next_proto = mask->hdr.next_proto_id & spec->hdr.next_proto_id; if (next_proto == IPPROTO_IPIP || next_proto == IPPROTO_IPV6) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "multiple tunnel " "not supported"); } if (item_flags & MLX5_FLOW_LAYER_IPV6_ENCAP) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "wrong tunnel type - IPv6 specified " "but IPv4 item provided"); if (item_flags & l3m) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "multiple L3 layers not supported"); else if (item_flags & l4m) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "L3 cannot follow an L4 layer."); else if ((item_flags & MLX5_FLOW_LAYER_NVGRE) && !(item_flags & MLX5_FLOW_LAYER_INNER_L2)) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "L3 cannot follow an NVGRE layer."); if (!mask) mask = &rte_flow_item_ipv4_mask; else if (mask->hdr.next_proto_id != 0 && mask->hdr.next_proto_id != 0xff) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask, "partial mask is not supported" " for protocol"); ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask, acc_mask ? (const uint8_t *)acc_mask : (const uint8_t *)&nic_mask, sizeof(struct rte_flow_item_ipv4), range_accepted, error); if (ret < 0) return ret; return 0; } /** * Validate IPV6 item. * * @param[in] item * Item specification. * @param[in] item_flags * Bit-fields that holds the items detected until now. * @param[in] last_item * Previous validated item in the pattern items. * @param[in] ether_type * Type in the ethernet layer header (including dot1q). * @param[in] acc_mask * Acceptable mask, if NULL default internal default mask * will be used to check whether item fields are supported. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item, uint64_t item_flags, uint64_t last_item, uint16_t ether_type, const struct rte_flow_item_ipv6 *acc_mask, struct rte_flow_error *error) { const struct rte_flow_item_ipv6 *mask = item->mask; const struct rte_flow_item_ipv6 *spec = item->spec; const struct rte_flow_item_ipv6 nic_mask = { .hdr = { .src_addr = "\xff\xff\xff\xff\xff\xff\xff\xff" "\xff\xff\xff\xff\xff\xff\xff\xff", .dst_addr = "\xff\xff\xff\xff\xff\xff\xff\xff" "\xff\xff\xff\xff\xff\xff\xff\xff", .vtc_flow = RTE_BE32(0xffffffff), .proto = 0xff, }, }; const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 : MLX5_FLOW_LAYER_OUTER_L3; const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 : MLX5_FLOW_LAYER_OUTER_L4; int ret; uint8_t next_proto = 0xFF; const uint64_t l2_vlan = (MLX5_FLOW_LAYER_L2 | MLX5_FLOW_LAYER_OUTER_VLAN | MLX5_FLOW_LAYER_INNER_VLAN); if ((last_item & l2_vlan) && ether_type && ether_type != RTE_ETHER_TYPE_IPV6) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "IPv6 cannot follow L2/VLAN layer " "which ether type is not IPv6"); if (mask && mask->hdr.proto == UINT8_MAX && spec) next_proto = spec->hdr.proto; if (item_flags & MLX5_FLOW_LAYER_IPV6_ENCAP) { if (next_proto == IPPROTO_IPIP || next_proto == IPPROTO_IPV6) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "multiple tunnel " "not supported"); } if (next_proto == IPPROTO_HOPOPTS || next_proto == IPPROTO_ROUTING || next_proto == IPPROTO_FRAGMENT || next_proto == IPPROTO_ESP || next_proto == IPPROTO_AH || next_proto == IPPROTO_DSTOPTS) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "IPv6 proto (next header) should " "not be set as extension header"); if (item_flags & MLX5_FLOW_LAYER_IPIP) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "wrong tunnel type - IPv4 specified " "but IPv6 item provided"); if (item_flags & l3m) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "multiple L3 layers not supported"); else if (item_flags & l4m) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "L3 cannot follow an L4 layer."); else if ((item_flags & MLX5_FLOW_LAYER_NVGRE) && !(item_flags & MLX5_FLOW_LAYER_INNER_L2)) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "L3 cannot follow an NVGRE layer."); if (!mask) mask = &rte_flow_item_ipv6_mask; ret = mlx5_flow_item_acceptable(item, (const uint8_t *)mask, acc_mask ? (const uint8_t *)acc_mask : (const uint8_t *)&nic_mask, sizeof(struct rte_flow_item_ipv6), MLX5_ITEM_RANGE_NOT_ACCEPTED, error); if (ret < 0) return ret; return 0; } /** * Validate UDP item. * * @param[in] item * Item specification. * @param[in] item_flags * Bit-fields that holds the items detected until now. * @param[in] target_protocol * The next protocol in the previous item. * @param[in] flow_mask * mlx5 flow-specific (DV, verbs, etc.) supported header fields mask. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_item_udp(const struct rte_flow_item *item, uint64_t item_flags, uint8_t target_protocol, struct rte_flow_error *error) { const struct rte_flow_item_udp *mask = item->mask; const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 : MLX5_FLOW_LAYER_OUTER_L3; const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 : MLX5_FLOW_LAYER_OUTER_L4; int ret; if (target_protocol != 0xff && target_protocol != IPPROTO_UDP) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "protocol filtering not compatible" " with UDP layer"); if (!(item_flags & l3m)) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "L3 is mandatory to filter on L4"); if (item_flags & l4m) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "multiple L4 layers not supported"); if (!mask) mask = &rte_flow_item_udp_mask; ret = mlx5_flow_item_acceptable (item, (const uint8_t *)mask, (const uint8_t *)&rte_flow_item_udp_mask, sizeof(struct rte_flow_item_udp), MLX5_ITEM_RANGE_NOT_ACCEPTED, error); if (ret < 0) return ret; return 0; } /** * Validate TCP item. * * @param[in] item * Item specification. * @param[in] item_flags * Bit-fields that holds the items detected until now. * @param[in] target_protocol * The next protocol in the previous item. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_item_tcp(const struct rte_flow_item *item, uint64_t item_flags, uint8_t target_protocol, const struct rte_flow_item_tcp *flow_mask, struct rte_flow_error *error) { const struct rte_flow_item_tcp *mask = item->mask; const int tunnel = !!(item_flags & MLX5_FLOW_LAYER_TUNNEL); const uint64_t l3m = tunnel ? MLX5_FLOW_LAYER_INNER_L3 : MLX5_FLOW_LAYER_OUTER_L3; const uint64_t l4m = tunnel ? MLX5_FLOW_LAYER_INNER_L4 : MLX5_FLOW_LAYER_OUTER_L4; int ret; MLX5_ASSERT(flow_mask); if (target_protocol != 0xff && target_protocol != IPPROTO_TCP) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "protocol filtering not compatible" " with TCP layer"); if (!(item_flags & l3m)) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "L3 is mandatory to filter on L4"); if (item_flags & l4m) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "multiple L4 layers not supported"); if (!mask) mask = &rte_flow_item_tcp_mask; ret = mlx5_flow_item_acceptable (item, (const uint8_t *)mask, (const uint8_t *)flow_mask, sizeof(struct rte_flow_item_tcp), MLX5_ITEM_RANGE_NOT_ACCEPTED, error); if (ret < 0) return ret; return 0; } /** * Validate VXLAN item. * * @param[in] item * Item specification. * @param[in] item_flags * Bit-fields that holds the items detected until now. * @param[in] target_protocol * The next protocol in the previous item. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_item_vxlan(const struct rte_flow_item *item, uint64_t item_flags, struct rte_flow_error *error) { const struct rte_flow_item_vxlan *spec = item->spec; const struct rte_flow_item_vxlan *mask = item->mask; int ret; union vni { uint32_t vlan_id; uint8_t vni[4]; } id = { .vlan_id = 0, }; if (item_flags & MLX5_FLOW_LAYER_TUNNEL) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "multiple tunnel layers not" " supported"); /* * Verify only UDPv4 is present as defined in * https://tools.ietf.org/html/rfc7348 */ if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP)) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "no outer UDP layer found"); if (!mask) mask = &rte_flow_item_vxlan_mask; ret = mlx5_flow_item_acceptable (item, (const uint8_t *)mask, (const uint8_t *)&rte_flow_item_vxlan_mask, sizeof(struct rte_flow_item_vxlan), MLX5_ITEM_RANGE_NOT_ACCEPTED, error); if (ret < 0) return ret; if (spec) { memcpy(&id.vni[1], spec->vni, 3); memcpy(&id.vni[1], mask->vni, 3); } if (!(item_flags & MLX5_FLOW_LAYER_OUTER)) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "VXLAN tunnel must be fully defined"); return 0; } /** * Validate VXLAN_GPE item. * * @param[in] item * Item specification. * @param[in] item_flags * Bit-fields that holds the items detected until now. * @param[in] priv * Pointer to the private data structure. * @param[in] target_protocol * The next protocol in the previous item. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_item_vxlan_gpe(const struct rte_flow_item *item, uint64_t item_flags, struct rte_eth_dev *dev, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; const struct rte_flow_item_vxlan_gpe *spec = item->spec; const struct rte_flow_item_vxlan_gpe *mask = item->mask; int ret; union vni { uint32_t vlan_id; uint8_t vni[4]; } id = { .vlan_id = 0, }; if (!priv->config.l3_vxlan_en) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "L3 VXLAN is not enabled by device" " parameter and/or not configured in" " firmware"); if (item_flags & MLX5_FLOW_LAYER_TUNNEL) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "multiple tunnel layers not" " supported"); /* * Verify only UDPv4 is present as defined in * https://tools.ietf.org/html/rfc7348 */ if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP)) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "no outer UDP layer found"); if (!mask) mask = &rte_flow_item_vxlan_gpe_mask; ret = mlx5_flow_item_acceptable (item, (const uint8_t *)mask, (const uint8_t *)&rte_flow_item_vxlan_gpe_mask, sizeof(struct rte_flow_item_vxlan_gpe), MLX5_ITEM_RANGE_NOT_ACCEPTED, error); if (ret < 0) return ret; if (spec) { if (spec->protocol) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "VxLAN-GPE protocol" " not supported"); memcpy(&id.vni[1], spec->vni, 3); memcpy(&id.vni[1], mask->vni, 3); } if (!(item_flags & MLX5_FLOW_LAYER_OUTER)) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "VXLAN-GPE tunnel must be fully" " defined"); return 0; } /** * Validate GRE Key item. * * @param[in] item * Item specification. * @param[in] item_flags * Bit flags to mark detected items. * @param[in] gre_item * Pointer to gre_item * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_item_gre_key(const struct rte_flow_item *item, uint64_t item_flags, const struct rte_flow_item *gre_item, struct rte_flow_error *error) { const rte_be32_t *mask = item->mask; int ret = 0; rte_be32_t gre_key_default_mask = RTE_BE32(UINT32_MAX); const struct rte_flow_item_gre *gre_spec; const struct rte_flow_item_gre *gre_mask; if (item_flags & MLX5_FLOW_LAYER_GRE_KEY) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "Multiple GRE key not support"); if (!(item_flags & MLX5_FLOW_LAYER_GRE)) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "No preceding GRE header"); if (item_flags & MLX5_FLOW_LAYER_INNER) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "GRE key following a wrong item"); gre_mask = gre_item->mask; if (!gre_mask) gre_mask = &rte_flow_item_gre_mask; gre_spec = gre_item->spec; if (gre_spec && (gre_mask->c_rsvd0_ver & RTE_BE16(0x2000)) && !(gre_spec->c_rsvd0_ver & RTE_BE16(0x2000))) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "Key bit must be on"); if (!mask) mask = &gre_key_default_mask; ret = mlx5_flow_item_acceptable (item, (const uint8_t *)mask, (const uint8_t *)&gre_key_default_mask, sizeof(rte_be32_t), MLX5_ITEM_RANGE_NOT_ACCEPTED, error); return ret; } /** * Validate GRE item. * * @param[in] item * Item specification. * @param[in] item_flags * Bit flags to mark detected items. * @param[in] target_protocol * The next protocol in the previous item. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_item_gre(const struct rte_flow_item *item, uint64_t item_flags, uint8_t target_protocol, struct rte_flow_error *error) { const struct rte_flow_item_gre *spec __rte_unused = item->spec; const struct rte_flow_item_gre *mask = item->mask; int ret; const struct rte_flow_item_gre nic_mask = { .c_rsvd0_ver = RTE_BE16(0xB000), .protocol = RTE_BE16(UINT16_MAX), }; if (target_protocol != 0xff && target_protocol != IPPROTO_GRE) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "protocol filtering not compatible" " with this GRE layer"); if (item_flags & MLX5_FLOW_LAYER_TUNNEL) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "multiple tunnel layers not" " supported"); if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3)) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "L3 Layer is missing"); if (!mask) mask = &rte_flow_item_gre_mask; ret = mlx5_flow_item_acceptable (item, (const uint8_t *)mask, (const uint8_t *)&nic_mask, sizeof(struct rte_flow_item_gre), MLX5_ITEM_RANGE_NOT_ACCEPTED, error); if (ret < 0) return ret; #ifndef HAVE_MLX5DV_DR #ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT if (spec && (spec->protocol & mask->protocol)) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "without MPLS support the" " specification cannot be used for" " filtering"); #endif #endif return 0; } /** * Validate Geneve item. * * @param[in] item * Item specification. * @param[in] itemFlags * Bit-fields that holds the items detected until now. * @param[in] enPriv * Pointer to the private data structure. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_item_geneve(const struct rte_flow_item *item, uint64_t item_flags, struct rte_eth_dev *dev, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; const struct rte_flow_item_geneve *spec = item->spec; const struct rte_flow_item_geneve *mask = item->mask; int ret; uint16_t gbhdr; uint8_t opt_len = priv->config.hca_attr.geneve_max_opt_len ? MLX5_GENEVE_OPT_LEN_1 : MLX5_GENEVE_OPT_LEN_0; const struct rte_flow_item_geneve nic_mask = { .ver_opt_len_o_c_rsvd0 = RTE_BE16(0x3f80), .vni = "\xff\xff\xff", .protocol = RTE_BE16(UINT16_MAX), }; if (!priv->config.hca_attr.tunnel_stateless_geneve_rx) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "L3 Geneve is not enabled by device" " parameter and/or not configured in" " firmware"); if (item_flags & MLX5_FLOW_LAYER_TUNNEL) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "multiple tunnel layers not" " supported"); /* * Verify only UDPv4 is present as defined in * https://tools.ietf.org/html/rfc7348 */ if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP)) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "no outer UDP layer found"); if (!mask) mask = &rte_flow_item_geneve_mask; ret = mlx5_flow_item_acceptable (item, (const uint8_t *)mask, (const uint8_t *)&nic_mask, sizeof(struct rte_flow_item_geneve), MLX5_ITEM_RANGE_NOT_ACCEPTED, error); if (ret) return ret; if (spec) { gbhdr = rte_be_to_cpu_16(spec->ver_opt_len_o_c_rsvd0); if (MLX5_GENEVE_VER_VAL(gbhdr) || MLX5_GENEVE_CRITO_VAL(gbhdr) || MLX5_GENEVE_RSVD_VAL(gbhdr) || spec->rsvd1) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "Geneve protocol unsupported" " fields are being used"); if (MLX5_GENEVE_OPTLEN_VAL(gbhdr) > opt_len) return rte_flow_error_set (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "Unsupported Geneve options length"); } if (!(item_flags & MLX5_FLOW_LAYER_OUTER)) return rte_flow_error_set (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "Geneve tunnel must be fully defined"); return 0; } /** * Validate Geneve TLV option item. * * @param[in] item * Item specification. * @param[in] last_item * Previous validated item in the pattern items. * @param[in] geneve_item * Previous GENEVE item specification. * @param[in] dev * Pointer to the rte_eth_dev structure. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_item_geneve_opt(const struct rte_flow_item *item, uint64_t last_item, const struct rte_flow_item *geneve_item, struct rte_eth_dev *dev, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_dev_ctx_shared *sh = priv->sh; struct mlx5_geneve_tlv_option_resource *geneve_opt_resource; struct mlx5_hca_attr *hca_attr = &priv->config.hca_attr; uint8_t data_max_supported = hca_attr->max_geneve_tlv_option_data_len * 4; struct mlx5_dev_config *config = &priv->config; const struct rte_flow_item_geneve *geneve_spec; const struct rte_flow_item_geneve *geneve_mask; const struct rte_flow_item_geneve_opt *spec = item->spec; const struct rte_flow_item_geneve_opt *mask = item->mask; unsigned int i; unsigned int data_len; uint8_t tlv_option_len; uint16_t optlen_m, optlen_v; const struct rte_flow_item_geneve_opt full_mask = { .option_class = RTE_BE16(0xffff), .option_type = 0xff, .option_len = 0x1f, }; if (!mask) mask = &rte_flow_item_geneve_opt_mask; if (!spec) return rte_flow_error_set (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "Geneve TLV opt class/type/length must be specified"); if ((uint32_t)spec->option_len > MLX5_GENEVE_OPTLEN_MASK) return rte_flow_error_set (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "Geneve TLV opt length exceeeds the limit (31)"); /* Check if class type and length masks are full. */ if (full_mask.option_class != mask->option_class || full_mask.option_type != mask->option_type || full_mask.option_len != (mask->option_len & full_mask.option_len)) return rte_flow_error_set (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "Geneve TLV opt class/type/length masks must be full"); /* Check if length is supported */ if ((uint32_t)spec->option_len > config->hca_attr.max_geneve_tlv_option_data_len) return rte_flow_error_set (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "Geneve TLV opt length not supported"); if (config->hca_attr.max_geneve_tlv_options > 1) DRV_LOG(DEBUG, "max_geneve_tlv_options supports more than 1 option"); /* Check GENEVE item preceding. */ if (!geneve_item || !(last_item & MLX5_FLOW_LAYER_GENEVE)) return rte_flow_error_set (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "Geneve opt item must be preceded with Geneve item"); geneve_spec = geneve_item->spec; geneve_mask = geneve_item->mask ? geneve_item->mask : &rte_flow_item_geneve_mask; /* Check if GENEVE TLV option size doesn't exceed option length */ if (geneve_spec && (geneve_mask->ver_opt_len_o_c_rsvd0 || geneve_spec->ver_opt_len_o_c_rsvd0)) { tlv_option_len = spec->option_len & mask->option_len; optlen_v = rte_be_to_cpu_16(geneve_spec->ver_opt_len_o_c_rsvd0); optlen_v = MLX5_GENEVE_OPTLEN_VAL(optlen_v); optlen_m = rte_be_to_cpu_16(geneve_mask->ver_opt_len_o_c_rsvd0); optlen_m = MLX5_GENEVE_OPTLEN_VAL(optlen_m); if ((optlen_v & optlen_m) <= tlv_option_len) return rte_flow_error_set (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "GENEVE TLV option length exceeds optlen"); } /* Check if length is 0 or data is 0. */ if (spec->data == NULL || spec->option_len == 0) return rte_flow_error_set (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "Geneve TLV opt with zero data/length not supported"); /* Check not all data & mask are 0. */ data_len = spec->option_len * 4; if (mask->data == NULL) { for (i = 0; i < data_len; i++) if (spec->data[i]) break; if (i == data_len) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "Can't match on Geneve option data 0"); } else { for (i = 0; i < data_len; i++) if (spec->data[i] & mask->data[i]) break; if (i == data_len) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "Can't match on Geneve option data and mask 0"); /* Check data mask supported. */ for (i = data_max_supported; i < data_len ; i++) if (mask->data[i]) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "Data mask is of unsupported size"); } /* Check GENEVE option is supported in NIC. */ if (!config->hca_attr.geneve_tlv_opt) return rte_flow_error_set (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "Geneve TLV opt not supported"); /* Check if we already have geneve option with different type/class. */ rte_spinlock_lock(&sh->geneve_tlv_opt_sl); geneve_opt_resource = sh->geneve_tlv_option_resource; if (geneve_opt_resource != NULL) if (geneve_opt_resource->option_class != spec->option_class || geneve_opt_resource->option_type != spec->option_type || geneve_opt_resource->length != spec->option_len) { rte_spinlock_unlock(&sh->geneve_tlv_opt_sl); return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "Only one Geneve TLV option supported"); } rte_spinlock_unlock(&sh->geneve_tlv_opt_sl); return 0; } /** * Validate MPLS item. * * @param[in] dev * Pointer to the rte_eth_dev structure. * @param[in] item * Item specification. * @param[in] item_flags * Bit-fields that holds the items detected until now. * @param[in] prev_layer * The protocol layer indicated in previous item. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_item_mpls(struct rte_eth_dev *dev __rte_unused, const struct rte_flow_item *item __rte_unused, uint64_t item_flags __rte_unused, uint64_t prev_layer __rte_unused, struct rte_flow_error *error) { #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT const struct rte_flow_item_mpls *mask = item->mask; struct mlx5_priv *priv = dev->data->dev_private; int ret; if (!priv->config.mpls_en) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "MPLS not supported or" " disabled in firmware" " configuration."); /* MPLS over IP, UDP, GRE is allowed */ if (!(prev_layer & (MLX5_FLOW_LAYER_OUTER_L3 | MLX5_FLOW_LAYER_OUTER_L4_UDP | MLX5_FLOW_LAYER_GRE | MLX5_FLOW_LAYER_GRE_KEY))) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "protocol filtering not compatible" " with MPLS layer"); /* Multi-tunnel isn't allowed but MPLS over GRE is an exception. */ if ((item_flags & MLX5_FLOW_LAYER_TUNNEL) && !(item_flags & MLX5_FLOW_LAYER_GRE)) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "multiple tunnel layers not" " supported"); if (!mask) mask = &rte_flow_item_mpls_mask; ret = mlx5_flow_item_acceptable (item, (const uint8_t *)mask, (const uint8_t *)&rte_flow_item_mpls_mask, sizeof(struct rte_flow_item_mpls), MLX5_ITEM_RANGE_NOT_ACCEPTED, error); if (ret < 0) return ret; return 0; #else return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "MPLS is not supported by Verbs, please" " update."); #endif } /** * Validate NVGRE item. * * @param[in] item * Item specification. * @param[in] item_flags * Bit flags to mark detected items. * @param[in] target_protocol * The next protocol in the previous item. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_item_nvgre(const struct rte_flow_item *item, uint64_t item_flags, uint8_t target_protocol, struct rte_flow_error *error) { const struct rte_flow_item_nvgre *mask = item->mask; int ret; if (target_protocol != 0xff && target_protocol != IPPROTO_GRE) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "protocol filtering not compatible" " with this GRE layer"); if (item_flags & MLX5_FLOW_LAYER_TUNNEL) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "multiple tunnel layers not" " supported"); if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L3)) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "L3 Layer is missing"); if (!mask) mask = &rte_flow_item_nvgre_mask; ret = mlx5_flow_item_acceptable (item, (const uint8_t *)mask, (const uint8_t *)&rte_flow_item_nvgre_mask, sizeof(struct rte_flow_item_nvgre), MLX5_ITEM_RANGE_NOT_ACCEPTED, error); if (ret < 0) return ret; return 0; } /** * Validate eCPRI item. * * @param[in] item * Item specification. * @param[in] item_flags * Bit-fields that holds the items detected until now. * @param[in] last_item * Previous validated item in the pattern items. * @param[in] ether_type * Type in the ethernet layer header (including dot1q). * @param[in] acc_mask * Acceptable mask, if NULL default internal default mask * will be used to check whether item fields are supported. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_validate_item_ecpri(const struct rte_flow_item *item, uint64_t item_flags, uint64_t last_item, uint16_t ether_type, const struct rte_flow_item_ecpri *acc_mask, struct rte_flow_error *error) { const struct rte_flow_item_ecpri *mask = item->mask; const struct rte_flow_item_ecpri nic_mask = { .hdr = { .common = { .u32 = RTE_BE32(((const struct rte_ecpri_common_hdr) { .type = 0xFF, }).u32), }, .dummy[0] = 0xFFFFFFFF, }, }; const uint64_t outer_l2_vlan = (MLX5_FLOW_LAYER_OUTER_L2 | MLX5_FLOW_LAYER_OUTER_VLAN); struct rte_flow_item_ecpri mask_lo; if (!(last_item & outer_l2_vlan) && last_item != MLX5_FLOW_LAYER_OUTER_L4_UDP) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "eCPRI can only follow L2/VLAN layer or UDP layer"); if ((last_item & outer_l2_vlan) && ether_type && ether_type != RTE_ETHER_TYPE_ECPRI) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "eCPRI cannot follow L2/VLAN layer which ether type is not 0xAEFE"); if (item_flags & MLX5_FLOW_LAYER_TUNNEL) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "eCPRI with tunnel is not supported right now"); if (item_flags & MLX5_FLOW_LAYER_OUTER_L3) return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "multiple L3 layers not supported"); else if (item_flags & MLX5_FLOW_LAYER_OUTER_L4_TCP) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "eCPRI cannot coexist with a TCP layer"); /* In specification, eCPRI could be over UDP layer. */ else if (item_flags & MLX5_FLOW_LAYER_OUTER_L4_UDP) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "eCPRI over UDP layer is not yet supported right now"); /* Mask for type field in common header could be zero. */ if (!mask) mask = &rte_flow_item_ecpri_mask; mask_lo.hdr.common.u32 = rte_be_to_cpu_32(mask->hdr.common.u32); /* Input mask is in big-endian format. */ if (mask_lo.hdr.common.type != 0 && mask_lo.hdr.common.type != 0xff) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask, "partial mask is not supported for protocol"); else if (mask_lo.hdr.common.type == 0 && mask->hdr.dummy[0] != 0) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask, "message header mask must be after a type mask"); return mlx5_flow_item_acceptable(item, (const uint8_t *)mask, acc_mask ? (const uint8_t *)acc_mask : (const uint8_t *)&nic_mask, sizeof(struct rte_flow_item_ecpri), MLX5_ITEM_RANGE_NOT_ACCEPTED, error); } /** * Release resource related QUEUE/RSS action split. * * @param dev * Pointer to Ethernet device. * @param flow * Flow to release id's from. */ static void flow_mreg_split_qrss_release(struct rte_eth_dev *dev, struct rte_flow *flow) { struct mlx5_priv *priv = dev->data->dev_private; uint32_t handle_idx; struct mlx5_flow_handle *dev_handle; SILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_MLX5_FLOW], flow->dev_handles, handle_idx, dev_handle, next) if (dev_handle->split_flow_id) mlx5_ipool_free(priv->sh->ipool [MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], dev_handle->split_flow_id); } static int flow_null_validate(struct rte_eth_dev *dev __rte_unused, const struct rte_flow_attr *attr __rte_unused, const struct rte_flow_item items[] __rte_unused, const struct rte_flow_action actions[] __rte_unused, bool external __rte_unused, int hairpin __rte_unused, struct rte_flow_error *error) { return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL); } static struct mlx5_flow * flow_null_prepare(struct rte_eth_dev *dev __rte_unused, const struct rte_flow_attr *attr __rte_unused, const struct rte_flow_item items[] __rte_unused, const struct rte_flow_action actions[] __rte_unused, struct rte_flow_error *error) { rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL); return NULL; } static int flow_null_translate(struct rte_eth_dev *dev __rte_unused, struct mlx5_flow *dev_flow __rte_unused, const struct rte_flow_attr *attr __rte_unused, const struct rte_flow_item items[] __rte_unused, const struct rte_flow_action actions[] __rte_unused, struct rte_flow_error *error) { return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL); } static int flow_null_apply(struct rte_eth_dev *dev __rte_unused, struct rte_flow *flow __rte_unused, struct rte_flow_error *error) { return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL); } static void flow_null_remove(struct rte_eth_dev *dev __rte_unused, struct rte_flow *flow __rte_unused) { } static void flow_null_destroy(struct rte_eth_dev *dev __rte_unused, struct rte_flow *flow __rte_unused) { } static int flow_null_query(struct rte_eth_dev *dev __rte_unused, struct rte_flow *flow __rte_unused, const struct rte_flow_action *actions __rte_unused, void *data __rte_unused, struct rte_flow_error *error) { return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, NULL); } static int flow_null_sync_domain(struct rte_eth_dev *dev __rte_unused, uint32_t domains __rte_unused, uint32_t flags __rte_unused) { return 0; } /* Void driver to protect from null pointer reference. */ const struct mlx5_flow_driver_ops mlx5_flow_null_drv_ops = { .validate = flow_null_validate, .prepare = flow_null_prepare, .translate = flow_null_translate, .apply = flow_null_apply, .remove = flow_null_remove, .destroy = flow_null_destroy, .query = flow_null_query, .sync_domain = flow_null_sync_domain, }; /** * Select flow driver type according to flow attributes and device * configuration. * * @param[in] dev * Pointer to the dev structure. * @param[in] attr * Pointer to the flow attributes. * * @return * flow driver type, MLX5_FLOW_TYPE_MAX otherwise. */ static enum mlx5_flow_drv_type flow_get_drv_type(struct rte_eth_dev *dev, const struct rte_flow_attr *attr) { struct mlx5_priv *priv = dev->data->dev_private; /* The OS can determine first a specific flow type (DV, VERBS) */ enum mlx5_flow_drv_type type = mlx5_flow_os_get_type(); if (type != MLX5_FLOW_TYPE_MAX) return type; /* If no OS specific type - continue with DV/VERBS selection */ if (attr->transfer && priv->config.dv_esw_en) type = MLX5_FLOW_TYPE_DV; if (!attr->transfer) type = priv->config.dv_flow_en ? MLX5_FLOW_TYPE_DV : MLX5_FLOW_TYPE_VERBS; return type; } #define flow_get_drv_ops(type) flow_drv_ops[type] /** * Flow driver validation API. This abstracts calling driver specific functions. * The type of flow driver is determined according to flow attributes. * * @param[in] dev * Pointer to the dev structure. * @param[in] attr * Pointer to the flow attributes. * @param[in] items * Pointer to the list of items. * @param[in] actions * Pointer to the list of actions. * @param[in] external * This flow rule is created by request external to PMD. * @param[in] hairpin * Number of hairpin TX actions, 0 means classic flow. * @param[out] error * Pointer to the error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static inline int flow_drv_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr, const struct rte_flow_item items[], const struct rte_flow_action actions[], bool external, int hairpin, struct rte_flow_error *error) { const struct mlx5_flow_driver_ops *fops; enum mlx5_flow_drv_type type = flow_get_drv_type(dev, attr); fops = flow_get_drv_ops(type); return fops->validate(dev, attr, items, actions, external, hairpin, error); } /** * Flow driver preparation API. This abstracts calling driver specific * functions. Parent flow (rte_flow) should have driver type (drv_type). It * calculates the size of memory required for device flow, allocates the memory, * initializes the device flow and returns the pointer. * * @note * This function initializes device flow structure such as dv or verbs in * struct mlx5_flow. However, it is caller's responsibility to initialize the * rest. For example, adding returning device flow to flow->dev_flow list and * setting backward reference to the flow should be done out of this function. * layers field is not filled either. * * @param[in] dev * Pointer to the dev structure. * @param[in] attr * Pointer to the flow attributes. * @param[in] items * Pointer to the list of items. * @param[in] actions * Pointer to the list of actions. * @param[in] flow_idx * This memory pool index to the flow. * @param[out] error * Pointer to the error structure. * * @return * Pointer to device flow on success, otherwise NULL and rte_errno is set. */ static inline struct mlx5_flow * flow_drv_prepare(struct rte_eth_dev *dev, const struct rte_flow *flow, const struct rte_flow_attr *attr, const struct rte_flow_item items[], const struct rte_flow_action actions[], uint32_t flow_idx, struct rte_flow_error *error) { const struct mlx5_flow_driver_ops *fops; enum mlx5_flow_drv_type type = flow->drv_type; struct mlx5_flow *mlx5_flow = NULL; MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX); fops = flow_get_drv_ops(type); mlx5_flow = fops->prepare(dev, attr, items, actions, error); if (mlx5_flow) mlx5_flow->flow_idx = flow_idx; return mlx5_flow; } /** * Flow driver translation API. This abstracts calling driver specific * functions. Parent flow (rte_flow) should have driver type (drv_type). It * translates a generic flow into a driver flow. flow_drv_prepare() must * precede. * * @note * dev_flow->layers could be filled as a result of parsing during translation * if needed by flow_drv_apply(). dev_flow->flow->actions can also be filled * if necessary. As a flow can have multiple dev_flows by RSS flow expansion, * flow->actions could be overwritten even though all the expanded dev_flows * have the same actions. * * @param[in] dev * Pointer to the rte dev structure. * @param[in, out] dev_flow * Pointer to the mlx5 flow. * @param[in] attr * Pointer to the flow attributes. * @param[in] items * Pointer to the list of items. * @param[in] actions * Pointer to the list of actions. * @param[out] error * Pointer to the error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static inline int flow_drv_translate(struct rte_eth_dev *dev, struct mlx5_flow *dev_flow, const struct rte_flow_attr *attr, const struct rte_flow_item items[], const struct rte_flow_action actions[], struct rte_flow_error *error) { const struct mlx5_flow_driver_ops *fops; enum mlx5_flow_drv_type type = dev_flow->flow->drv_type; MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX); fops = flow_get_drv_ops(type); return fops->translate(dev, dev_flow, attr, items, actions, error); } /** * Flow driver apply API. This abstracts calling driver specific functions. * Parent flow (rte_flow) should have driver type (drv_type). It applies * translated driver flows on to device. flow_drv_translate() must precede. * * @param[in] dev * Pointer to Ethernet device structure. * @param[in, out] flow * Pointer to flow structure. * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static inline int flow_drv_apply(struct rte_eth_dev *dev, struct rte_flow *flow, struct rte_flow_error *error) { const struct mlx5_flow_driver_ops *fops; enum mlx5_flow_drv_type type = flow->drv_type; MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX); fops = flow_get_drv_ops(type); return fops->apply(dev, flow, error); } /** * Flow driver destroy API. This abstracts calling driver specific functions. * Parent flow (rte_flow) should have driver type (drv_type). It removes a flow * on device and releases resources of the flow. * * @param[in] dev * Pointer to Ethernet device. * @param[in, out] flow * Pointer to flow structure. */ static inline void flow_drv_destroy(struct rte_eth_dev *dev, struct rte_flow *flow) { const struct mlx5_flow_driver_ops *fops; enum mlx5_flow_drv_type type = flow->drv_type; flow_mreg_split_qrss_release(dev, flow); MLX5_ASSERT(type > MLX5_FLOW_TYPE_MIN && type < MLX5_FLOW_TYPE_MAX); fops = flow_get_drv_ops(type); fops->destroy(dev, flow); } /** * Get RSS action from the action list. * * @param[in] actions * Pointer to the list of actions. * * @return * Pointer to the RSS action if exist, else return NULL. */ static const struct rte_flow_action_rss* flow_get_rss_action(const struct rte_flow_action actions[]) { const struct rte_flow_action_rss *rss = NULL; for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) { switch (actions->type) { case RTE_FLOW_ACTION_TYPE_RSS: rss = actions->conf; break; case RTE_FLOW_ACTION_TYPE_SAMPLE: { const struct rte_flow_action_sample *sample = actions->conf; const struct rte_flow_action *act = sample->actions; for (; act->type != RTE_FLOW_ACTION_TYPE_END; act++) if (act->type == RTE_FLOW_ACTION_TYPE_RSS) rss = act->conf; break; } default: break; } } return rss; } /** * Get ASO age action by index. * * @param[in] dev * Pointer to the Ethernet device structure. * @param[in] age_idx * Index to the ASO age action. * * @return * The specified ASO age action. */ struct mlx5_aso_age_action* flow_aso_age_get_by_idx(struct rte_eth_dev *dev, uint32_t age_idx) { uint16_t pool_idx = age_idx & UINT16_MAX; uint16_t offset = (age_idx >> 16) & UINT16_MAX; struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_aso_age_mng *mng = priv->sh->aso_age_mng; struct mlx5_aso_age_pool *pool = mng->pools[pool_idx]; return &pool->actions[offset - 1]; } /* maps shared action to translated non shared in some actions array */ struct mlx5_translated_shared_action { struct rte_flow_shared_action *action; /**< Shared action */ int index; /**< Index in related array of rte_flow_action */ }; /** * Translates actions of type RTE_FLOW_ACTION_TYPE_SHARED to related * non shared action if translation possible. * This functionality used to run same execution path for both shared & non * shared actions on flow create. All necessary preparations for shared * action handling should be preformed on *shared* actions list returned * from this call. * * @param[in] dev * Pointer to Ethernet device. * @param[in] actions * List of actions to translate. * @param[out] shared * List to store translated shared actions. * @param[in, out] shared_n * Size of *shared* array. On return should be updated with number of shared * actions retrieved from the *actions* list. * @param[out] translated_actions * List of actions where all shared actions were translated to non shared * if possible. NULL if no translation took place. * @param[out] error * Pointer to the error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int flow_shared_actions_translate(struct rte_eth_dev *dev, const struct rte_flow_action actions[], struct mlx5_translated_shared_action *shared, int *shared_n, struct rte_flow_action **translated_actions, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; struct rte_flow_action *translated = NULL; size_t actions_size; int n; int copied_n = 0; struct mlx5_translated_shared_action *shared_end = NULL; for (n = 0; actions[n].type != RTE_FLOW_ACTION_TYPE_END; n++) { if (actions[n].type != RTE_FLOW_ACTION_TYPE_SHARED) continue; if (copied_n == *shared_n) { return rte_flow_error_set (error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_NUM, NULL, "too many shared actions"); } rte_memcpy(&shared[copied_n].action, &actions[n].conf, sizeof(actions[n].conf)); shared[copied_n].index = n; copied_n++; } n++; *shared_n = copied_n; if (!copied_n) return 0; actions_size = sizeof(struct rte_flow_action) * n; translated = mlx5_malloc(MLX5_MEM_ZERO, actions_size, 0, SOCKET_ID_ANY); if (!translated) { rte_errno = ENOMEM; return -ENOMEM; } memcpy(translated, actions, actions_size); for (shared_end = shared + copied_n; shared < shared_end; shared++) { struct mlx5_shared_action_rss *shared_rss; uint32_t act_idx = (uint32_t)(uintptr_t)shared->action; uint32_t type = act_idx >> MLX5_SHARED_ACTION_TYPE_OFFSET; uint32_t idx = act_idx & ((1u << MLX5_SHARED_ACTION_TYPE_OFFSET) - 1); switch (type) { case MLX5_SHARED_ACTION_TYPE_RSS: shared_rss = mlx5_ipool_get (priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS], idx); translated[shared->index].type = RTE_FLOW_ACTION_TYPE_RSS; translated[shared->index].conf = &shared_rss->origin; break; case MLX5_SHARED_ACTION_TYPE_AGE: if (priv->sh->flow_hit_aso_en) { translated[shared->index].type = (enum rte_flow_action_type) MLX5_RTE_FLOW_ACTION_TYPE_AGE; translated[shared->index].conf = (void *)(uintptr_t)idx; break; } /* Fall-through */ default: mlx5_free(translated); return rte_flow_error_set (error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, NULL, "invalid shared action type"); } } *translated_actions = translated; return 0; } /** * Get Shared RSS action from the action list. * * @param[in] dev * Pointer to Ethernet device. * @param[in] shared * Pointer to the list of actions. * @param[in] shared_n * Actions list length. * * @return * The MLX5 RSS action ID if exists, otherwise return 0. */ static uint32_t flow_get_shared_rss_action(struct rte_eth_dev *dev, struct mlx5_translated_shared_action *shared, int shared_n) { struct mlx5_translated_shared_action *shared_end; struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_shared_action_rss *shared_rss; for (shared_end = shared + shared_n; shared < shared_end; shared++) { uint32_t act_idx = (uint32_t)(uintptr_t)shared->action; uint32_t type = act_idx >> MLX5_SHARED_ACTION_TYPE_OFFSET; uint32_t idx = act_idx & ((1u << MLX5_SHARED_ACTION_TYPE_OFFSET) - 1); switch (type) { case MLX5_SHARED_ACTION_TYPE_RSS: shared_rss = mlx5_ipool_get (priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS], idx); __atomic_add_fetch(&shared_rss->refcnt, 1, __ATOMIC_RELAXED); return idx; default: break; } } return 0; } static unsigned int find_graph_root(const struct rte_flow_item pattern[], uint32_t rss_level) { const struct rte_flow_item *item; unsigned int has_vlan = 0; for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) { if (item->type == RTE_FLOW_ITEM_TYPE_VLAN) { has_vlan = 1; break; } } if (has_vlan) return rss_level < 2 ? MLX5_EXPANSION_ROOT_ETH_VLAN : MLX5_EXPANSION_ROOT_OUTER_ETH_VLAN; return rss_level < 2 ? MLX5_EXPANSION_ROOT : MLX5_EXPANSION_ROOT_OUTER; } /** * Get layer flags from the prefix flow. * * Some flows may be split to several subflows, the prefix subflow gets the * match items and the suffix sub flow gets the actions. * Some actions need the user defined match item flags to get the detail for * the action. * This function helps the suffix flow to get the item layer flags from prefix * subflow. * * @param[in] dev_flow * Pointer the created preifx subflow. * * @return * The layers get from prefix subflow. */ static inline uint64_t flow_get_prefix_layer_flags(struct mlx5_flow *dev_flow) { uint64_t layers = 0; /* * Layers bits could be localization, but usually the compiler will * help to do the optimization work for source code. * If no decap actions, use the layers directly. */ if (!(dev_flow->act_flags & MLX5_FLOW_ACTION_DECAP)) return dev_flow->handle->layers; /* Convert L3 layers with decap action. */ if (dev_flow->handle->layers & MLX5_FLOW_LAYER_INNER_L3_IPV4) layers |= MLX5_FLOW_LAYER_OUTER_L3_IPV4; else if (dev_flow->handle->layers & MLX5_FLOW_LAYER_INNER_L3_IPV6) layers |= MLX5_FLOW_LAYER_OUTER_L3_IPV6; /* Convert L4 layers with decap action. */ if (dev_flow->handle->layers & MLX5_FLOW_LAYER_INNER_L4_TCP) layers |= MLX5_FLOW_LAYER_OUTER_L4_TCP; else if (dev_flow->handle->layers & MLX5_FLOW_LAYER_INNER_L4_UDP) layers |= MLX5_FLOW_LAYER_OUTER_L4_UDP; return layers; } /** * Get metadata split action information. * * @param[in] actions * Pointer to the list of actions. * @param[out] qrss * Pointer to the return pointer. * @param[out] qrss_type * Pointer to the action type to return. RTE_FLOW_ACTION_TYPE_END is returned * if no QUEUE/RSS is found. * @param[out] encap_idx * Pointer to the index of the encap action if exists, otherwise the last * action index. * * @return * Total number of actions. */ static int flow_parse_metadata_split_actions_info(const struct rte_flow_action actions[], const struct rte_flow_action **qrss, int *encap_idx) { const struct rte_flow_action_raw_encap *raw_encap; int actions_n = 0; int raw_decap_idx = -1; *encap_idx = -1; for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) { switch (actions->type) { case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP: case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP: *encap_idx = actions_n; break; case RTE_FLOW_ACTION_TYPE_RAW_DECAP: raw_decap_idx = actions_n; break; case RTE_FLOW_ACTION_TYPE_RAW_ENCAP: raw_encap = actions->conf; if (raw_encap->size > MLX5_ENCAPSULATION_DECISION_SIZE) *encap_idx = raw_decap_idx != -1 ? raw_decap_idx : actions_n; break; case RTE_FLOW_ACTION_TYPE_QUEUE: case RTE_FLOW_ACTION_TYPE_RSS: *qrss = actions; break; default: break; } actions_n++; } if (*encap_idx == -1) *encap_idx = actions_n; /* Count RTE_FLOW_ACTION_TYPE_END. */ return actions_n + 1; } /** * Check meter action from the action list. * * @param[in] actions * Pointer to the list of actions. * @param[out] mtr * Pointer to the meter exist flag. * * @return * Total number of actions. */ static int flow_check_meter_action(const struct rte_flow_action actions[], uint32_t *mtr) { int actions_n = 0; MLX5_ASSERT(mtr); *mtr = 0; for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) { switch (actions->type) { case RTE_FLOW_ACTION_TYPE_METER: *mtr = 1; break; default: break; } actions_n++; } /* Count RTE_FLOW_ACTION_TYPE_END. */ return actions_n + 1; } /** * Check if the flow should be split due to hairpin. * The reason for the split is that in current HW we can't * support encap and push-vlan on Rx, so if a flow contains * these actions we move it to Tx. * * @param dev * Pointer to Ethernet device. * @param[in] attr * Flow rule attributes. * @param[in] actions * Associated actions (list terminated by the END action). * * @return * > 0 the number of actions and the flow should be split, * 0 when no split required. */ static int flow_check_hairpin_split(struct rte_eth_dev *dev, const struct rte_flow_attr *attr, const struct rte_flow_action actions[]) { int queue_action = 0; int action_n = 0; int split = 0; const struct rte_flow_action_queue *queue; const struct rte_flow_action_rss *rss; const struct rte_flow_action_raw_encap *raw_encap; const struct rte_eth_hairpin_conf *conf; if (!attr->ingress) return 0; for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) { switch (actions->type) { case RTE_FLOW_ACTION_TYPE_QUEUE: queue = actions->conf; if (queue == NULL) return 0; conf = mlx5_rxq_get_hairpin_conf(dev, queue->index); if (conf == NULL || conf->tx_explicit != 0) return 0; queue_action = 1; action_n++; break; case RTE_FLOW_ACTION_TYPE_RSS: rss = actions->conf; if (rss == NULL || rss->queue_num == 0) return 0; conf = mlx5_rxq_get_hairpin_conf(dev, rss->queue[0]); if (conf == NULL || conf->tx_explicit != 0) return 0; queue_action = 1; action_n++; break; case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP: case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP: case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN: case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID: case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP: split++; action_n++; break; case RTE_FLOW_ACTION_TYPE_RAW_ENCAP: raw_encap = actions->conf; if (raw_encap->size > MLX5_ENCAPSULATION_DECISION_SIZE) split++; action_n++; break; default: action_n++; break; } } if (split && queue_action) return action_n; return 0; } /* Declare flow create/destroy prototype in advance. */ static uint32_t flow_list_create(struct rte_eth_dev *dev, uint32_t *list, const struct rte_flow_attr *attr, const struct rte_flow_item items[], const struct rte_flow_action actions[], bool external, struct rte_flow_error *error); static void flow_list_destroy(struct rte_eth_dev *dev, uint32_t *list, uint32_t flow_idx); int flow_dv_mreg_match_cb(struct mlx5_hlist *list __rte_unused, struct mlx5_hlist_entry *entry, uint64_t key, void *cb_ctx __rte_unused) { struct mlx5_flow_mreg_copy_resource *mcp_res = container_of(entry, typeof(*mcp_res), hlist_ent); return mcp_res->mark_id != key; } struct mlx5_hlist_entry * flow_dv_mreg_create_cb(struct mlx5_hlist *list, uint64_t key, void *cb_ctx) { struct rte_eth_dev *dev = list->ctx; struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_flow_cb_ctx *ctx = cb_ctx; struct mlx5_flow_mreg_copy_resource *mcp_res; struct rte_flow_error *error = ctx->error; uint32_t idx = 0; int ret; uint32_t mark_id = key; struct rte_flow_attr attr = { .group = MLX5_FLOW_MREG_CP_TABLE_GROUP, .ingress = 1, }; struct mlx5_rte_flow_item_tag tag_spec = { .data = mark_id, }; struct rte_flow_item items[] = { [1] = { .type = RTE_FLOW_ITEM_TYPE_END, }, }; struct rte_flow_action_mark ftag = { .id = mark_id, }; struct mlx5_flow_action_copy_mreg cp_mreg = { .dst = REG_B, .src = REG_NON, }; struct rte_flow_action_jump jump = { .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP, }; struct rte_flow_action actions[] = { [3] = { .type = RTE_FLOW_ACTION_TYPE_END, }, }; /* Fill the register fileds in the flow. */ ret = mlx5_flow_get_reg_id(dev, MLX5_FLOW_MARK, 0, error); if (ret < 0) return NULL; tag_spec.id = ret; ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_RX, 0, error); if (ret < 0) return NULL; cp_mreg.src = ret; /* Provide the full width of FLAG specific value. */ if (mark_id == (priv->sh->dv_regc0_mask & MLX5_FLOW_MARK_DEFAULT)) tag_spec.data = MLX5_FLOW_MARK_DEFAULT; /* Build a new flow. */ if (mark_id != MLX5_DEFAULT_COPY_ID) { items[0] = (struct rte_flow_item){ .type = (enum rte_flow_item_type) MLX5_RTE_FLOW_ITEM_TYPE_TAG, .spec = &tag_spec, }; items[1] = (struct rte_flow_item){ .type = RTE_FLOW_ITEM_TYPE_END, }; actions[0] = (struct rte_flow_action){ .type = (enum rte_flow_action_type) MLX5_RTE_FLOW_ACTION_TYPE_MARK, .conf = &ftag, }; actions[1] = (struct rte_flow_action){ .type = (enum rte_flow_action_type) MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG, .conf = &cp_mreg, }; actions[2] = (struct rte_flow_action){ .type = RTE_FLOW_ACTION_TYPE_JUMP, .conf = &jump, }; actions[3] = (struct rte_flow_action){ .type = RTE_FLOW_ACTION_TYPE_END, }; } else { /* Default rule, wildcard match. */ attr.priority = MLX5_FLOW_LOWEST_PRIO_INDICATOR; items[0] = (struct rte_flow_item){ .type = RTE_FLOW_ITEM_TYPE_END, }; actions[0] = (struct rte_flow_action){ .type = (enum rte_flow_action_type) MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG, .conf = &cp_mreg, }; actions[1] = (struct rte_flow_action){ .type = RTE_FLOW_ACTION_TYPE_JUMP, .conf = &jump, }; actions[2] = (struct rte_flow_action){ .type = RTE_FLOW_ACTION_TYPE_END, }; } /* Build a new entry. */ mcp_res = mlx5_ipool_zmalloc(priv->sh->ipool[MLX5_IPOOL_MCP], &idx); if (!mcp_res) { rte_errno = ENOMEM; return NULL; } mcp_res->idx = idx; mcp_res->mark_id = mark_id; /* * The copy Flows are not included in any list. There * ones are referenced from other Flows and can not * be applied, removed, deleted in ardbitrary order * by list traversing. */ mcp_res->rix_flow = flow_list_create(dev, NULL, &attr, items, actions, false, error); if (!mcp_res->rix_flow) { mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MCP], idx); return NULL; } return &mcp_res->hlist_ent; } /** * Add a flow of copying flow metadata registers in RX_CP_TBL. * * As mark_id is unique, if there's already a registered flow for the mark_id, * return by increasing the reference counter of the resource. Otherwise, create * the resource (mcp_res) and flow. * * Flow looks like, * - If ingress port is ANY and reg_c[1] is mark_id, * flow_tag := mark_id, reg_b := reg_c[0] and jump to RX_ACT_TBL. * * For default flow (zero mark_id), flow is like, * - If ingress port is ANY, * reg_b := reg_c[0] and jump to RX_ACT_TBL. * * @param dev * Pointer to Ethernet device. * @param mark_id * ID of MARK action, zero means default flow for META. * @param[out] error * Perform verbose error reporting if not NULL. * * @return * Associated resource on success, NULL otherwise and rte_errno is set. */ static struct mlx5_flow_mreg_copy_resource * flow_mreg_add_copy_action(struct rte_eth_dev *dev, uint32_t mark_id, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_hlist_entry *entry; struct mlx5_flow_cb_ctx ctx = { .dev = dev, .error = error, }; /* Check if already registered. */ MLX5_ASSERT(priv->mreg_cp_tbl); entry = mlx5_hlist_register(priv->mreg_cp_tbl, mark_id, &ctx); if (!entry) return NULL; return container_of(entry, struct mlx5_flow_mreg_copy_resource, hlist_ent); } void flow_dv_mreg_remove_cb(struct mlx5_hlist *list, struct mlx5_hlist_entry *entry) { struct mlx5_flow_mreg_copy_resource *mcp_res = container_of(entry, typeof(*mcp_res), hlist_ent); struct rte_eth_dev *dev = list->ctx; struct mlx5_priv *priv = dev->data->dev_private; MLX5_ASSERT(mcp_res->rix_flow); flow_list_destroy(dev, NULL, mcp_res->rix_flow); mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MCP], mcp_res->idx); } /** * Release flow in RX_CP_TBL. * * @param dev * Pointer to Ethernet device. * @flow * Parent flow for wich copying is provided. */ static void flow_mreg_del_copy_action(struct rte_eth_dev *dev, struct rte_flow *flow) { struct mlx5_flow_mreg_copy_resource *mcp_res; struct mlx5_priv *priv = dev->data->dev_private; if (!flow->rix_mreg_copy) return; mcp_res = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_MCP], flow->rix_mreg_copy); if (!mcp_res || !priv->mreg_cp_tbl) return; MLX5_ASSERT(mcp_res->rix_flow); mlx5_hlist_unregister(priv->mreg_cp_tbl, &mcp_res->hlist_ent); flow->rix_mreg_copy = 0; } /** * Remove the default copy action from RX_CP_TBL. * * This functions is called in the mlx5_dev_start(). No thread safe * is guaranteed. * * @param dev * Pointer to Ethernet device. */ static void flow_mreg_del_default_copy_action(struct rte_eth_dev *dev) { struct mlx5_hlist_entry *entry; struct mlx5_priv *priv = dev->data->dev_private; /* Check if default flow is registered. */ if (!priv->mreg_cp_tbl) return; entry = mlx5_hlist_lookup(priv->mreg_cp_tbl, MLX5_DEFAULT_COPY_ID, NULL); if (!entry) return; mlx5_hlist_unregister(priv->mreg_cp_tbl, entry); } /** * Add the default copy action in in RX_CP_TBL. * * This functions is called in the mlx5_dev_start(). No thread safe * is guaranteed. * * @param dev * Pointer to Ethernet device. * @param[out] error * Perform verbose error reporting if not NULL. * * @return * 0 for success, negative value otherwise and rte_errno is set. */ static int flow_mreg_add_default_copy_action(struct rte_eth_dev *dev, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_flow_mreg_copy_resource *mcp_res; /* Check whether extensive metadata feature is engaged. */ if (!priv->config.dv_flow_en || priv->config.dv_xmeta_en == MLX5_XMETA_MODE_LEGACY || !mlx5_flow_ext_mreg_supported(dev) || !priv->sh->dv_regc0_mask) return 0; /* * Add default mreg copy flow may be called multiple time, but * only be called once in stop. Avoid register it twice. */ if (mlx5_hlist_lookup(priv->mreg_cp_tbl, MLX5_DEFAULT_COPY_ID, NULL)) return 0; mcp_res = flow_mreg_add_copy_action(dev, MLX5_DEFAULT_COPY_ID, error); if (!mcp_res) return -rte_errno; return 0; } /** * Add a flow of copying flow metadata registers in RX_CP_TBL. * * All the flow having Q/RSS action should be split by * flow_mreg_split_qrss_prep() to pass by RX_CP_TBL. A flow in the RX_CP_TBL * performs the following, * - CQE->flow_tag := reg_c[1] (MARK) * - CQE->flow_table_metadata (reg_b) := reg_c[0] (META) * As CQE's flow_tag is not a register, it can't be simply copied from reg_c[1] * but there should be a flow per each MARK ID set by MARK action. * * For the aforementioned reason, if there's a MARK action in flow's action * list, a corresponding flow should be added to the RX_CP_TBL in order to copy * the MARK ID to CQE's flow_tag like, * - If reg_c[1] is mark_id, * flow_tag := mark_id, reg_b := reg_c[0] and jump to RX_ACT_TBL. * * For SET_META action which stores value in reg_c[0], as the destination is * also a flow metadata register (reg_b), adding a default flow is enough. Zero * MARK ID means the default flow. The default flow looks like, * - For all flow, reg_b := reg_c[0] and jump to RX_ACT_TBL. * * @param dev * Pointer to Ethernet device. * @param flow * Pointer to flow structure. * @param[in] actions * Pointer to the list of actions. * @param[out] error * Perform verbose error reporting if not NULL. * * @return * 0 on success, negative value otherwise and rte_errno is set. */ static int flow_mreg_update_copy_table(struct rte_eth_dev *dev, struct rte_flow *flow, const struct rte_flow_action *actions, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_dev_config *config = &priv->config; struct mlx5_flow_mreg_copy_resource *mcp_res; const struct rte_flow_action_mark *mark; /* Check whether extensive metadata feature is engaged. */ if (!config->dv_flow_en || config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY || !mlx5_flow_ext_mreg_supported(dev) || !priv->sh->dv_regc0_mask) return 0; /* Find MARK action. */ for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) { switch (actions->type) { case RTE_FLOW_ACTION_TYPE_FLAG: mcp_res = flow_mreg_add_copy_action (dev, MLX5_FLOW_MARK_DEFAULT, error); if (!mcp_res) return -rte_errno; flow->rix_mreg_copy = mcp_res->idx; return 0; case RTE_FLOW_ACTION_TYPE_MARK: mark = (const struct rte_flow_action_mark *) actions->conf; mcp_res = flow_mreg_add_copy_action(dev, mark->id, error); if (!mcp_res) return -rte_errno; flow->rix_mreg_copy = mcp_res->idx; return 0; default: break; } } return 0; } #define MLX5_MAX_SPLIT_ACTIONS 24 #define MLX5_MAX_SPLIT_ITEMS 24 /** * Split the hairpin flow. * Since HW can't support encap and push-vlan on Rx, we move these * actions to Tx. * If the count action is after the encap then we also * move the count action. in this case the count will also measure * the outer bytes. * * @param dev * Pointer to Ethernet device. * @param[in] actions * Associated actions (list terminated by the END action). * @param[out] actions_rx * Rx flow actions. * @param[out] actions_tx * Tx flow actions.. * @param[out] pattern_tx * The pattern items for the Tx flow. * @param[out] flow_id * The flow ID connected to this flow. * * @return * 0 on success. */ static int flow_hairpin_split(struct rte_eth_dev *dev, const struct rte_flow_action actions[], struct rte_flow_action actions_rx[], struct rte_flow_action actions_tx[], struct rte_flow_item pattern_tx[], uint32_t flow_id) { const struct rte_flow_action_raw_encap *raw_encap; const struct rte_flow_action_raw_decap *raw_decap; struct mlx5_rte_flow_action_set_tag *set_tag; struct rte_flow_action *tag_action; struct mlx5_rte_flow_item_tag *tag_item; struct rte_flow_item *item; char *addr; int encap = 0; for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) { switch (actions->type) { case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP: case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP: case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN: case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID: case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP: rte_memcpy(actions_tx, actions, sizeof(struct rte_flow_action)); actions_tx++; break; case RTE_FLOW_ACTION_TYPE_COUNT: if (encap) { rte_memcpy(actions_tx, actions, sizeof(struct rte_flow_action)); actions_tx++; } else { rte_memcpy(actions_rx, actions, sizeof(struct rte_flow_action)); actions_rx++; } break; case RTE_FLOW_ACTION_TYPE_RAW_ENCAP: raw_encap = actions->conf; if (raw_encap->size > MLX5_ENCAPSULATION_DECISION_SIZE) { memcpy(actions_tx, actions, sizeof(struct rte_flow_action)); actions_tx++; encap = 1; } else { rte_memcpy(actions_rx, actions, sizeof(struct rte_flow_action)); actions_rx++; } break; case RTE_FLOW_ACTION_TYPE_RAW_DECAP: raw_decap = actions->conf; if (raw_decap->size < MLX5_ENCAPSULATION_DECISION_SIZE) { memcpy(actions_tx, actions, sizeof(struct rte_flow_action)); actions_tx++; } else { rte_memcpy(actions_rx, actions, sizeof(struct rte_flow_action)); actions_rx++; } break; default: rte_memcpy(actions_rx, actions, sizeof(struct rte_flow_action)); actions_rx++; break; } } /* Add set meta action and end action for the Rx flow. */ tag_action = actions_rx; tag_action->type = (enum rte_flow_action_type) MLX5_RTE_FLOW_ACTION_TYPE_TAG; actions_rx++; rte_memcpy(actions_rx, actions, sizeof(struct rte_flow_action)); actions_rx++; set_tag = (void *)actions_rx; set_tag->id = mlx5_flow_get_reg_id(dev, MLX5_HAIRPIN_RX, 0, NULL); MLX5_ASSERT(set_tag->id > REG_NON); set_tag->data = flow_id; tag_action->conf = set_tag; /* Create Tx item list. */ rte_memcpy(actions_tx, actions, sizeof(struct rte_flow_action)); addr = (void *)&pattern_tx[2]; item = pattern_tx; item->type = (enum rte_flow_item_type) MLX5_RTE_FLOW_ITEM_TYPE_TAG; tag_item = (void *)addr; tag_item->data = flow_id; tag_item->id = mlx5_flow_get_reg_id(dev, MLX5_HAIRPIN_TX, 0, NULL); MLX5_ASSERT(set_tag->id > REG_NON); item->spec = tag_item; addr += sizeof(struct mlx5_rte_flow_item_tag); tag_item = (void *)addr; tag_item->data = UINT32_MAX; tag_item->id = UINT16_MAX; item->mask = tag_item; item->last = NULL; item++; item->type = RTE_FLOW_ITEM_TYPE_END; return 0; } /** * The last stage of splitting chain, just creates the subflow * without any modification. * * @param[in] dev * Pointer to Ethernet device. * @param[in] flow * Parent flow structure pointer. * @param[in, out] sub_flow * Pointer to return the created subflow, may be NULL. * @param[in] attr * Flow rule attributes. * @param[in] items * Pattern specification (list terminated by the END pattern item). * @param[in] actions * Associated actions (list terminated by the END action). * @param[in] flow_split_info * Pointer to flow split info structure. * @param[out] error * Perform verbose error reporting if not NULL. * @return * 0 on success, negative value otherwise */ static int flow_create_split_inner(struct rte_eth_dev *dev, struct rte_flow *flow, struct mlx5_flow **sub_flow, const struct rte_flow_attr *attr, const struct rte_flow_item items[], const struct rte_flow_action actions[], struct mlx5_flow_split_info *flow_split_info, struct rte_flow_error *error) { struct mlx5_flow *dev_flow; dev_flow = flow_drv_prepare(dev, flow, attr, items, actions, flow_split_info->flow_idx, error); if (!dev_flow) return -rte_errno; dev_flow->flow = flow; dev_flow->external = flow_split_info->external; dev_flow->skip_scale = flow_split_info->skip_scale; /* Subflow object was created, we must include one in the list. */ SILIST_INSERT(&flow->dev_handles, dev_flow->handle_idx, dev_flow->handle, next); /* * If dev_flow is as one of the suffix flow, some actions in suffix * flow may need some user defined item layer flags, and pass the * Metadate rxq mark flag to suffix flow as well. */ if (flow_split_info->prefix_layers) dev_flow->handle->layers = flow_split_info->prefix_layers; if (flow_split_info->prefix_mark) dev_flow->handle->mark = 1; if (sub_flow) *sub_flow = dev_flow; return flow_drv_translate(dev, dev_flow, attr, items, actions, error); } /** * Split the meter flow. * * As meter flow will split to three sub flow, other than meter * action, the other actions make sense to only meter accepts * the packet. If it need to be dropped, no other additional * actions should be take. * * One kind of special action which decapsulates the L3 tunnel * header will be in the prefix sub flow, as not to take the * L3 tunnel header into account. * * @param dev * Pointer to Ethernet device. * @param[in] items * Pattern specification (list terminated by the END pattern item). * @param[out] sfx_items * Suffix flow match items (list terminated by the END pattern item). * @param[in] actions * Associated actions (list terminated by the END action). * @param[out] actions_sfx * Suffix flow actions. * @param[out] actions_pre * Prefix flow actions. * @param[out] pattern_sfx * The pattern items for the suffix flow. * @param[out] tag_sfx * Pointer to suffix flow tag. * * @return * 0 on success. */ static int flow_meter_split_prep(struct rte_eth_dev *dev, const struct rte_flow_item items[], struct rte_flow_item sfx_items[], const struct rte_flow_action actions[], struct rte_flow_action actions_sfx[], struct rte_flow_action actions_pre[]) { struct mlx5_priv *priv = dev->data->dev_private; struct rte_flow_action *tag_action = NULL; struct rte_flow_item *tag_item; struct mlx5_rte_flow_action_set_tag *set_tag; struct rte_flow_error error; const struct rte_flow_action_raw_encap *raw_encap; const struct rte_flow_action_raw_decap *raw_decap; struct mlx5_rte_flow_item_tag *tag_spec; struct mlx5_rte_flow_item_tag *tag_mask; uint32_t tag_id = 0; bool copy_vlan = false; /* Prepare the actions for prefix and suffix flow. */ for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) { struct rte_flow_action **action_cur = NULL; switch (actions->type) { case RTE_FLOW_ACTION_TYPE_METER: /* Add the extra tag action first. */ tag_action = actions_pre; tag_action->type = (enum rte_flow_action_type) MLX5_RTE_FLOW_ACTION_TYPE_TAG; actions_pre++; action_cur = &actions_pre; break; case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP: case RTE_FLOW_ACTION_TYPE_NVGRE_DECAP: action_cur = &actions_pre; break; case RTE_FLOW_ACTION_TYPE_RAW_ENCAP: raw_encap = actions->conf; if (raw_encap->size < MLX5_ENCAPSULATION_DECISION_SIZE) action_cur = &actions_pre; break; case RTE_FLOW_ACTION_TYPE_RAW_DECAP: raw_decap = actions->conf; if (raw_decap->size > MLX5_ENCAPSULATION_DECISION_SIZE) action_cur = &actions_pre; break; case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN: case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID: copy_vlan = true; break; default: break; } if (!action_cur) action_cur = &actions_sfx; memcpy(*action_cur, actions, sizeof(struct rte_flow_action)); (*action_cur)++; } /* Add end action to the actions. */ actions_sfx->type = RTE_FLOW_ACTION_TYPE_END; actions_pre->type = RTE_FLOW_ACTION_TYPE_END; actions_pre++; /* Set the tag. */ set_tag = (void *)actions_pre; set_tag->id = mlx5_flow_get_reg_id(dev, MLX5_MTR_SFX, 0, &error); mlx5_ipool_malloc(priv->sh->ipool[MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], &tag_id); if (tag_id >= (1 << (sizeof(tag_id) * 8 - MLX5_MTR_COLOR_BITS))) { DRV_LOG(ERR, "Port %u meter flow id exceed max limit.", dev->data->port_id); mlx5_ipool_free(priv->sh->ipool [MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], tag_id); return 0; } else if (!tag_id) { return 0; } set_tag->data = tag_id << MLX5_MTR_COLOR_BITS; assert(tag_action); tag_action->conf = set_tag; /* Prepare the suffix subflow items. */ tag_item = sfx_items++; for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) { int item_type = items->type; switch (item_type) { case RTE_FLOW_ITEM_TYPE_PORT_ID: memcpy(sfx_items, items, sizeof(*sfx_items)); sfx_items++; break; case RTE_FLOW_ITEM_TYPE_VLAN: if (copy_vlan) { memcpy(sfx_items, items, sizeof(*sfx_items)); /* * Convert to internal match item, it is used * for vlan push and set vid. */ sfx_items->type = (enum rte_flow_item_type) MLX5_RTE_FLOW_ITEM_TYPE_VLAN; sfx_items++; } break; default: break; } } sfx_items->type = RTE_FLOW_ITEM_TYPE_END; sfx_items++; tag_spec = (struct mlx5_rte_flow_item_tag *)sfx_items; tag_spec->data = tag_id << MLX5_MTR_COLOR_BITS; tag_spec->id = mlx5_flow_get_reg_id(dev, MLX5_MTR_SFX, 0, &error); tag_mask = tag_spec + 1; tag_mask->data = 0xffffff00; tag_item->type = (enum rte_flow_item_type) MLX5_RTE_FLOW_ITEM_TYPE_TAG; tag_item->spec = tag_spec; tag_item->last = NULL; tag_item->mask = tag_mask; return tag_id; } /** * Split action list having QUEUE/RSS for metadata register copy. * * Once Q/RSS action is detected in user's action list, the flow action * should be split in order to copy metadata registers, which will happen in * RX_CP_TBL like, * - CQE->flow_tag := reg_c[1] (MARK) * - CQE->flow_table_metadata (reg_b) := reg_c[0] (META) * The Q/RSS action will be performed on RX_ACT_TBL after passing by RX_CP_TBL. * This is because the last action of each flow must be a terminal action * (QUEUE, RSS or DROP). * * Flow ID must be allocated to identify actions in the RX_ACT_TBL and it is * stored and kept in the mlx5_flow structure per each sub_flow. * * The Q/RSS action is replaced with, * - SET_TAG, setting the allocated flow ID to reg_c[2]. * And the following JUMP action is added at the end, * - JUMP, to RX_CP_TBL. * * A flow to perform remained Q/RSS action will be created in RX_ACT_TBL by * flow_create_split_metadata() routine. The flow will look like, * - If flow ID matches (reg_c[2]), perform Q/RSS. * * @param dev * Pointer to Ethernet device. * @param[out] split_actions * Pointer to store split actions to jump to CP_TBL. * @param[in] actions * Pointer to the list of original flow actions. * @param[in] qrss * Pointer to the Q/RSS action. * @param[in] actions_n * Number of original actions. * @param[out] error * Perform verbose error reporting if not NULL. * * @return * non-zero unique flow_id on success, otherwise 0 and * error/rte_error are set. */ static uint32_t flow_mreg_split_qrss_prep(struct rte_eth_dev *dev, struct rte_flow_action *split_actions, const struct rte_flow_action *actions, const struct rte_flow_action *qrss, int actions_n, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_rte_flow_action_set_tag *set_tag; struct rte_flow_action_jump *jump; const int qrss_idx = qrss - actions; uint32_t flow_id = 0; int ret = 0; /* * Given actions will be split * - Replace QUEUE/RSS action with SET_TAG to set flow ID. * - Add jump to mreg CP_TBL. * As a result, there will be one more action. */ ++actions_n; memcpy(split_actions, actions, sizeof(*split_actions) * actions_n); set_tag = (void *)(split_actions + actions_n); /* * If tag action is not set to void(it means we are not the meter * suffix flow), add the tag action. Since meter suffix flow already * has the tag added. */ if (split_actions[qrss_idx].type != RTE_FLOW_ACTION_TYPE_VOID) { /* * Allocate the new subflow ID. This one is unique within * device and not shared with representors. Otherwise, * we would have to resolve multi-thread access synch * issue. Each flow on the shared device is appended * with source vport identifier, so the resulting * flows will be unique in the shared (by master and * representors) domain even if they have coinciding * IDs. */ mlx5_ipool_malloc(priv->sh->ipool [MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], &flow_id); if (!flow_id) return rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_ACTION, NULL, "can't allocate id " "for split Q/RSS subflow"); /* Internal SET_TAG action to set flow ID. */ *set_tag = (struct mlx5_rte_flow_action_set_tag){ .data = flow_id, }; ret = mlx5_flow_get_reg_id(dev, MLX5_COPY_MARK, 0, error); if (ret < 0) return ret; set_tag->id = ret; /* Construct new actions array. */ /* Replace QUEUE/RSS action. */ split_actions[qrss_idx] = (struct rte_flow_action){ .type = (enum rte_flow_action_type) MLX5_RTE_FLOW_ACTION_TYPE_TAG, .conf = set_tag, }; } /* JUMP action to jump to mreg copy table (CP_TBL). */ jump = (void *)(set_tag + 1); *jump = (struct rte_flow_action_jump){ .group = MLX5_FLOW_MREG_CP_TABLE_GROUP, }; split_actions[actions_n - 2] = (struct rte_flow_action){ .type = RTE_FLOW_ACTION_TYPE_JUMP, .conf = jump, }; split_actions[actions_n - 1] = (struct rte_flow_action){ .type = RTE_FLOW_ACTION_TYPE_END, }; return flow_id; } /** * Extend the given action list for Tx metadata copy. * * Copy the given action list to the ext_actions and add flow metadata register * copy action in order to copy reg_a set by WQE to reg_c[0]. * * @param[out] ext_actions * Pointer to the extended action list. * @param[in] actions * Pointer to the list of actions. * @param[in] actions_n * Number of actions in the list. * @param[out] error * Perform verbose error reporting if not NULL. * @param[in] encap_idx * The encap action inndex. * * @return * 0 on success, negative value otherwise */ static int flow_mreg_tx_copy_prep(struct rte_eth_dev *dev, struct rte_flow_action *ext_actions, const struct rte_flow_action *actions, int actions_n, struct rte_flow_error *error, int encap_idx) { struct mlx5_flow_action_copy_mreg *cp_mreg = (struct mlx5_flow_action_copy_mreg *) (ext_actions + actions_n + 1); int ret; ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_RX, 0, error); if (ret < 0) return ret; cp_mreg->dst = ret; ret = mlx5_flow_get_reg_id(dev, MLX5_METADATA_TX, 0, error); if (ret < 0) return ret; cp_mreg->src = ret; if (encap_idx != 0) memcpy(ext_actions, actions, sizeof(*ext_actions) * encap_idx); if (encap_idx == actions_n - 1) { ext_actions[actions_n - 1] = (struct rte_flow_action){ .type = (enum rte_flow_action_type) MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG, .conf = cp_mreg, }; ext_actions[actions_n] = (struct rte_flow_action){ .type = RTE_FLOW_ACTION_TYPE_END, }; } else { ext_actions[encap_idx] = (struct rte_flow_action){ .type = (enum rte_flow_action_type) MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG, .conf = cp_mreg, }; memcpy(ext_actions + encap_idx + 1, actions + encap_idx, sizeof(*ext_actions) * (actions_n - encap_idx)); } return 0; } /** * Check the match action from the action list. * * @param[in] actions * Pointer to the list of actions. * @param[in] attr * Flow rule attributes. * @param[in] action * The action to be check if exist. * @param[out] match_action_pos * Pointer to the position of the matched action if exists, otherwise is -1. * @param[out] qrss_action_pos * Pointer to the position of the Queue/RSS action if exists, otherwise is -1. * @param[out] modify_after_mirror * Pointer to the flag of modify action after FDB mirroring. * * @return * > 0 the total number of actions. * 0 if not found match action in action list. */ static int flow_check_match_action(const struct rte_flow_action actions[], const struct rte_flow_attr *attr, enum rte_flow_action_type action, int *match_action_pos, int *qrss_action_pos, int *modify_after_mirror) { const struct rte_flow_action_sample *sample; int actions_n = 0; uint32_t ratio = 0; int sub_type = 0; int flag = 0; int fdb_mirror = 0; *match_action_pos = -1; *qrss_action_pos = -1; for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) { if (actions->type == action) { flag = 1; *match_action_pos = actions_n; } switch (actions->type) { case RTE_FLOW_ACTION_TYPE_QUEUE: case RTE_FLOW_ACTION_TYPE_RSS: *qrss_action_pos = actions_n; break; case RTE_FLOW_ACTION_TYPE_SAMPLE: sample = actions->conf; ratio = sample->ratio; sub_type = ((const struct rte_flow_action *) (sample->actions))->type; if (ratio == 1 && attr->transfer) fdb_mirror = 1; break; case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC: case RTE_FLOW_ACTION_TYPE_SET_MAC_DST: case RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC: case RTE_FLOW_ACTION_TYPE_SET_IPV4_DST: case RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC: case RTE_FLOW_ACTION_TYPE_SET_IPV6_DST: case RTE_FLOW_ACTION_TYPE_SET_TP_SRC: case RTE_FLOW_ACTION_TYPE_SET_TP_DST: case RTE_FLOW_ACTION_TYPE_DEC_TTL: case RTE_FLOW_ACTION_TYPE_SET_TTL: case RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ: case RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ: case RTE_FLOW_ACTION_TYPE_INC_TCP_ACK: case RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK: case RTE_FLOW_ACTION_TYPE_SET_IPV4_DSCP: case RTE_FLOW_ACTION_TYPE_SET_IPV6_DSCP: case RTE_FLOW_ACTION_TYPE_FLAG: case RTE_FLOW_ACTION_TYPE_MARK: case RTE_FLOW_ACTION_TYPE_SET_META: case RTE_FLOW_ACTION_TYPE_SET_TAG: if (fdb_mirror) *modify_after_mirror = 1; break; default: break; } actions_n++; } if (flag && fdb_mirror && !*modify_after_mirror) { /* FDB mirroring uses the destination array to implement * instead of FLOW_SAMPLER object. */ if (sub_type != RTE_FLOW_ACTION_TYPE_END) flag = 0; } /* Count RTE_FLOW_ACTION_TYPE_END. */ return flag ? actions_n + 1 : 0; } #define SAMPLE_SUFFIX_ITEM 2 /** * Split the sample flow. * * As sample flow will split to two sub flow, sample flow with * sample action, the other actions will move to new suffix flow. * * Also add unique tag id with tag action in the sample flow, * the same tag id will be as match in the suffix flow. * * @param dev * Pointer to Ethernet device. * @param[in] add_tag * Add extra tag action flag. * @param[out] sfx_items * Suffix flow match items (list terminated by the END pattern item). * @param[in] actions * Associated actions (list terminated by the END action). * @param[out] actions_sfx * Suffix flow actions. * @param[out] actions_pre * Prefix flow actions. * @param[in] actions_n * The total number of actions. * @param[in] sample_action_pos * The sample action position. * @param[in] qrss_action_pos * The Queue/RSS action position. * @param[in] jump_table * Add extra jump action flag. * @param[out] error * Perform verbose error reporting if not NULL. * * @return * 0 on success, or unique flow_id, a negative errno value * otherwise and rte_errno is set. */ static int flow_sample_split_prep(struct rte_eth_dev *dev, int add_tag, struct rte_flow_item sfx_items[], const struct rte_flow_action actions[], struct rte_flow_action actions_sfx[], struct rte_flow_action actions_pre[], int actions_n, int sample_action_pos, int qrss_action_pos, int jump_table, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_rte_flow_action_set_tag *set_tag; struct mlx5_rte_flow_item_tag *tag_spec; struct mlx5_rte_flow_item_tag *tag_mask; struct rte_flow_action_jump *jump_action; uint32_t tag_id = 0; int index; int append_index = 0; int ret; if (sample_action_pos < 0) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, NULL, "invalid position of sample " "action in list"); /* Prepare the actions for prefix and suffix flow. */ if (qrss_action_pos >= 0 && qrss_action_pos < sample_action_pos) { index = qrss_action_pos; /* Put the preceding the Queue/RSS action into prefix flow. */ if (index != 0) memcpy(actions_pre, actions, sizeof(struct rte_flow_action) * index); /* Put others preceding the sample action into prefix flow. */ if (sample_action_pos > index + 1) memcpy(actions_pre + index, actions + index + 1, sizeof(struct rte_flow_action) * (sample_action_pos - index - 1)); index = sample_action_pos - 1; /* Put Queue/RSS action into Suffix flow. */ memcpy(actions_sfx, actions + qrss_action_pos, sizeof(struct rte_flow_action)); actions_sfx++; } else { index = sample_action_pos; if (index != 0) memcpy(actions_pre, actions, sizeof(struct rte_flow_action) * index); } /* For CX5, add an extra tag action for NIC-RX and E-Switch ingress. * For CX6DX and above, metadata registers Cx preserve their value, * add an extra tag action for NIC-RX and E-Switch Domain. */ if (add_tag) { /* Prepare the prefix tag action. */ append_index++; set_tag = (void *)(actions_pre + actions_n + append_index); ret = mlx5_flow_get_reg_id(dev, MLX5_APP_TAG, 0, error); if (ret < 0) return ret; set_tag->id = ret; mlx5_ipool_malloc(priv->sh->ipool [MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], &tag_id); set_tag->data = tag_id; /* Prepare the suffix subflow items. */ tag_spec = (void *)(sfx_items + SAMPLE_SUFFIX_ITEM); tag_spec->data = tag_id; tag_spec->id = set_tag->id; tag_mask = tag_spec + 1; tag_mask->data = UINT32_MAX; sfx_items[0] = (struct rte_flow_item){ .type = (enum rte_flow_item_type) MLX5_RTE_FLOW_ITEM_TYPE_TAG, .spec = tag_spec, .last = NULL, .mask = tag_mask, }; sfx_items[1] = (struct rte_flow_item){ .type = (enum rte_flow_item_type) RTE_FLOW_ITEM_TYPE_END, }; /* Prepare the tag action in prefix subflow. */ actions_pre[index++] = (struct rte_flow_action){ .type = (enum rte_flow_action_type) MLX5_RTE_FLOW_ACTION_TYPE_TAG, .conf = set_tag, }; } memcpy(actions_pre + index, actions + sample_action_pos, sizeof(struct rte_flow_action)); index += 1; /* For the modify action after the sample action in E-Switch mirroring, * Add the extra jump action in prefix subflow and jump into the next * table, then do the modify action in the new table. */ if (jump_table) { /* Prepare the prefix jump action. */ append_index++; jump_action = (void *)(actions_pre + actions_n + append_index); jump_action->group = jump_table; actions_pre[index++] = (struct rte_flow_action){ .type = (enum rte_flow_action_type) RTE_FLOW_ACTION_TYPE_JUMP, .conf = jump_action, }; } actions_pre[index] = (struct rte_flow_action){ .type = (enum rte_flow_action_type) RTE_FLOW_ACTION_TYPE_END, }; /* Put the actions after sample into Suffix flow. */ memcpy(actions_sfx, actions + sample_action_pos + 1, sizeof(struct rte_flow_action) * (actions_n - sample_action_pos - 1)); return tag_id; } /** * The splitting for metadata feature. * * - Q/RSS action on NIC Rx should be split in order to pass by * the mreg copy table (RX_CP_TBL) and then it jumps to the * action table (RX_ACT_TBL) which has the split Q/RSS action. * * - All the actions on NIC Tx should have a mreg copy action to * copy reg_a from WQE to reg_c[0]. * * @param dev * Pointer to Ethernet device. * @param[in] flow * Parent flow structure pointer. * @param[in] attr * Flow rule attributes. * @param[in] items * Pattern specification (list terminated by the END pattern item). * @param[in] actions * Associated actions (list terminated by the END action). * @param[in] flow_split_info * Pointer to flow split info structure. * @param[out] error * Perform verbose error reporting if not NULL. * @return * 0 on success, negative value otherwise */ static int flow_create_split_metadata(struct rte_eth_dev *dev, struct rte_flow *flow, const struct rte_flow_attr *attr, const struct rte_flow_item items[], const struct rte_flow_action actions[], struct mlx5_flow_split_info *flow_split_info, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_dev_config *config = &priv->config; const struct rte_flow_action *qrss = NULL; struct rte_flow_action *ext_actions = NULL; struct mlx5_flow *dev_flow = NULL; uint32_t qrss_id = 0; int mtr_sfx = 0; size_t act_size; int actions_n; int encap_idx; int ret; /* Check whether extensive metadata feature is engaged. */ if (!config->dv_flow_en || config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY || !mlx5_flow_ext_mreg_supported(dev)) return flow_create_split_inner(dev, flow, NULL, attr, items, actions, flow_split_info, error); actions_n = flow_parse_metadata_split_actions_info(actions, &qrss, &encap_idx); if (qrss) { /* Exclude hairpin flows from splitting. */ if (qrss->type == RTE_FLOW_ACTION_TYPE_QUEUE) { const struct rte_flow_action_queue *queue; queue = qrss->conf; if (mlx5_rxq_get_type(dev, queue->index) == MLX5_RXQ_TYPE_HAIRPIN) qrss = NULL; } else if (qrss->type == RTE_FLOW_ACTION_TYPE_RSS) { const struct rte_flow_action_rss *rss; rss = qrss->conf; if (mlx5_rxq_get_type(dev, rss->queue[0]) == MLX5_RXQ_TYPE_HAIRPIN) qrss = NULL; } } if (qrss) { /* Check if it is in meter suffix table. */ mtr_sfx = attr->group == (attr->transfer ? (MLX5_FLOW_TABLE_LEVEL_SUFFIX - 1) : MLX5_FLOW_TABLE_LEVEL_SUFFIX); /* * Q/RSS action on NIC Rx should be split in order to pass by * the mreg copy table (RX_CP_TBL) and then it jumps to the * action table (RX_ACT_TBL) which has the split Q/RSS action. */ act_size = sizeof(struct rte_flow_action) * (actions_n + 1) + sizeof(struct rte_flow_action_set_tag) + sizeof(struct rte_flow_action_jump); ext_actions = mlx5_malloc(MLX5_MEM_ZERO, act_size, 0, SOCKET_ID_ANY); if (!ext_actions) return rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_ACTION, NULL, "no memory to split " "metadata flow"); /* * If we are the suffix flow of meter, tag already exist. * Set the tag action to void. */ if (mtr_sfx) ext_actions[qrss - actions].type = RTE_FLOW_ACTION_TYPE_VOID; else ext_actions[qrss - actions].type = (enum rte_flow_action_type) MLX5_RTE_FLOW_ACTION_TYPE_TAG; /* * Create the new actions list with removed Q/RSS action * and appended set tag and jump to register copy table * (RX_CP_TBL). We should preallocate unique tag ID here * in advance, because it is needed for set tag action. */ qrss_id = flow_mreg_split_qrss_prep(dev, ext_actions, actions, qrss, actions_n, error); if (!mtr_sfx && !qrss_id) { ret = -rte_errno; goto exit; } } else if (attr->egress && !attr->transfer) { /* * All the actions on NIC Tx should have a metadata register * copy action to copy reg_a from WQE to reg_c[meta] */ act_size = sizeof(struct rte_flow_action) * (actions_n + 1) + sizeof(struct mlx5_flow_action_copy_mreg); ext_actions = mlx5_malloc(MLX5_MEM_ZERO, act_size, 0, SOCKET_ID_ANY); if (!ext_actions) return rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_ACTION, NULL, "no memory to split " "metadata flow"); /* Create the action list appended with copy register. */ ret = flow_mreg_tx_copy_prep(dev, ext_actions, actions, actions_n, error, encap_idx); if (ret < 0) goto exit; } /* Add the unmodified original or prefix subflow. */ ret = flow_create_split_inner(dev, flow, &dev_flow, attr, items, ext_actions ? ext_actions : actions, flow_split_info, error); if (ret < 0) goto exit; MLX5_ASSERT(dev_flow); if (qrss) { const struct rte_flow_attr q_attr = { .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP, .ingress = 1, }; /* Internal PMD action to set register. */ struct mlx5_rte_flow_item_tag q_tag_spec = { .data = qrss_id, .id = REG_NON, }; struct rte_flow_item q_items[] = { { .type = (enum rte_flow_item_type) MLX5_RTE_FLOW_ITEM_TYPE_TAG, .spec = &q_tag_spec, .last = NULL, .mask = NULL, }, { .type = RTE_FLOW_ITEM_TYPE_END, }, }; struct rte_flow_action q_actions[] = { { .type = qrss->type, .conf = qrss->conf, }, { .type = RTE_FLOW_ACTION_TYPE_END, }, }; uint64_t layers = flow_get_prefix_layer_flags(dev_flow); /* * Configure the tag item only if there is no meter subflow. * Since tag is already marked in the meter suffix subflow * we can just use the meter suffix items as is. */ if (qrss_id) { /* Not meter subflow. */ MLX5_ASSERT(!mtr_sfx); /* * Put unique id in prefix flow due to it is destroyed * after suffix flow and id will be freed after there * is no actual flows with this id and identifier * reallocation becomes possible (for example, for * other flows in other threads). */ dev_flow->handle->split_flow_id = qrss_id; ret = mlx5_flow_get_reg_id(dev, MLX5_COPY_MARK, 0, error); if (ret < 0) goto exit; q_tag_spec.id = ret; } dev_flow = NULL; /* Add suffix subflow to execute Q/RSS. */ flow_split_info->prefix_layers = layers; flow_split_info->prefix_mark = 0; ret = flow_create_split_inner(dev, flow, &dev_flow, &q_attr, mtr_sfx ? items : q_items, q_actions, flow_split_info, error); if (ret < 0) goto exit; /* qrss ID should be freed if failed. */ qrss_id = 0; MLX5_ASSERT(dev_flow); } exit: /* * We do not destroy the partially created sub_flows in case of error. * These ones are included into parent flow list and will be destroyed * by flow_drv_destroy. */ mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_RSS_EXPANTION_FLOW_ID], qrss_id); mlx5_free(ext_actions); return ret; } /** * The splitting for meter feature. * * - The meter flow will be split to two flows as prefix and * suffix flow. The packets make sense only it pass the prefix * meter action. * * - Reg_C_5 is used for the packet to match betweend prefix and * suffix flow. * * @param dev * Pointer to Ethernet device. * @param[in] flow * Parent flow structure pointer. * @param[in] attr * Flow rule attributes. * @param[in] items * Pattern specification (list terminated by the END pattern item). * @param[in] actions * Associated actions (list terminated by the END action). * @param[in] flow_split_info * Pointer to flow split info structure. * @param[out] error * Perform verbose error reporting if not NULL. * @return * 0 on success, negative value otherwise */ static int flow_create_split_meter(struct rte_eth_dev *dev, struct rte_flow *flow, const struct rte_flow_attr *attr, const struct rte_flow_item items[], const struct rte_flow_action actions[], struct mlx5_flow_split_info *flow_split_info, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; struct rte_flow_action *sfx_actions = NULL; struct rte_flow_action *pre_actions = NULL; struct rte_flow_item *sfx_items = NULL; struct mlx5_flow *dev_flow = NULL; struct rte_flow_attr sfx_attr = *attr; uint32_t mtr = 0; uint32_t mtr_tag_id = 0; size_t act_size; size_t item_size; int actions_n = 0; int ret; if (priv->mtr_en) actions_n = flow_check_meter_action(actions, &mtr); if (mtr) { /* The five prefix actions: meter, decap, encap, tag, end. */ act_size = sizeof(struct rte_flow_action) * (actions_n + 5) + sizeof(struct mlx5_rte_flow_action_set_tag); /* tag, vlan, port id, end. */ #define METER_SUFFIX_ITEM 4 item_size = sizeof(struct rte_flow_item) * METER_SUFFIX_ITEM + sizeof(struct mlx5_rte_flow_item_tag) * 2; sfx_actions = mlx5_malloc(MLX5_MEM_ZERO, (act_size + item_size), 0, SOCKET_ID_ANY); if (!sfx_actions) return rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_ACTION, NULL, "no memory to split " "meter flow"); sfx_items = (struct rte_flow_item *)((char *)sfx_actions + act_size); pre_actions = sfx_actions + actions_n; mtr_tag_id = flow_meter_split_prep(dev, items, sfx_items, actions, sfx_actions, pre_actions); if (!mtr_tag_id) { ret = -rte_errno; goto exit; } /* Add the prefix subflow. */ flow_split_info->prefix_mark = 0; ret = flow_create_split_inner(dev, flow, &dev_flow, attr, items, pre_actions, flow_split_info, error); if (ret) { ret = -rte_errno; goto exit; } dev_flow->handle->split_flow_id = mtr_tag_id; /* Setting the sfx group atrr. */ sfx_attr.group = sfx_attr.transfer ? (MLX5_FLOW_TABLE_LEVEL_SUFFIX - 1) : MLX5_FLOW_TABLE_LEVEL_SUFFIX; flow_split_info->prefix_layers = flow_get_prefix_layer_flags(dev_flow); flow_split_info->prefix_mark = dev_flow->handle->mark; } /* Add the prefix subflow. */ ret = flow_create_split_metadata(dev, flow, &sfx_attr, sfx_items ? sfx_items : items, sfx_actions ? sfx_actions : actions, flow_split_info, error); exit: if (sfx_actions) mlx5_free(sfx_actions); return ret; } /** * The splitting for sample feature. * * Once Sample action is detected in the action list, the flow actions should * be split into prefix sub flow and suffix sub flow. * * The original items remain in the prefix sub flow, all actions preceding the * sample action and the sample action itself will be copied to the prefix * sub flow, the actions following the sample action will be copied to the * suffix sub flow, Queue action always be located in the suffix sub flow. * * In order to make the packet from prefix sub flow matches with suffix sub * flow, an extra tag action be added into prefix sub flow, and the suffix sub * flow uses tag item with the unique flow id. * * @param dev * Pointer to Ethernet device. * @param[in] flow * Parent flow structure pointer. * @param[in] attr * Flow rule attributes. * @param[in] items * Pattern specification (list terminated by the END pattern item). * @param[in] actions * Associated actions (list terminated by the END action). * @param[in] flow_split_info * Pointer to flow split info structure. * @param[out] error * Perform verbose error reporting if not NULL. * @return * 0 on success, negative value otherwise */ static int flow_create_split_sample(struct rte_eth_dev *dev, struct rte_flow *flow, const struct rte_flow_attr *attr, const struct rte_flow_item items[], const struct rte_flow_action actions[], struct mlx5_flow_split_info *flow_split_info, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; struct rte_flow_action *sfx_actions = NULL; struct rte_flow_action *pre_actions = NULL; struct rte_flow_item *sfx_items = NULL; struct mlx5_flow *dev_flow = NULL; struct rte_flow_attr sfx_attr = *attr; #ifdef HAVE_IBV_FLOW_DV_SUPPORT struct mlx5_flow_dv_sample_resource *sample_res; struct mlx5_flow_tbl_data_entry *sfx_tbl_data; struct mlx5_flow_tbl_resource *sfx_tbl; #endif size_t act_size; size_t item_size; uint32_t fdb_tx = 0; int32_t tag_id = 0; int actions_n = 0; int sample_action_pos; int qrss_action_pos; int add_tag = 0; int modify_after_mirror = 0; uint16_t jump_table = 0; const uint32_t next_ft_step = 1; int ret = 0; if (priv->sampler_en) actions_n = flow_check_match_action(actions, attr, RTE_FLOW_ACTION_TYPE_SAMPLE, &sample_action_pos, &qrss_action_pos, &modify_after_mirror); if (actions_n) { /* The prefix actions must includes sample, tag, end. */ act_size = sizeof(struct rte_flow_action) * (actions_n * 2 + 1) + sizeof(struct mlx5_rte_flow_action_set_tag); item_size = sizeof(struct rte_flow_item) * SAMPLE_SUFFIX_ITEM + sizeof(struct mlx5_rte_flow_item_tag) * 2; sfx_actions = mlx5_malloc(MLX5_MEM_ZERO, (act_size + item_size), 0, SOCKET_ID_ANY); if (!sfx_actions) return rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_ACTION, NULL, "no memory to split " "sample flow"); /* The representor_id is -1 for uplink. */ fdb_tx = (attr->transfer && priv->representor_id != -1); /* * When reg_c_preserve is set, metadata registers Cx preserve * their value even through packet duplication. */ add_tag = (!fdb_tx || priv->config.hca_attr.reg_c_preserve); if (add_tag) sfx_items = (struct rte_flow_item *)((char *)sfx_actions + act_size); if (modify_after_mirror) jump_table = attr->group * MLX5_FLOW_TABLE_FACTOR + next_ft_step; pre_actions = sfx_actions + actions_n; tag_id = flow_sample_split_prep(dev, add_tag, sfx_items, actions, sfx_actions, pre_actions, actions_n, sample_action_pos, qrss_action_pos, jump_table, error); if (tag_id < 0 || (add_tag && !tag_id)) { ret = -rte_errno; goto exit; } if (modify_after_mirror) flow_split_info->skip_scale = 1 << MLX5_SCALE_JUMP_FLOW_GROUP_BIT; /* Add the prefix subflow. */ ret = flow_create_split_inner(dev, flow, &dev_flow, attr, items, pre_actions, flow_split_info, error); if (ret) { ret = -rte_errno; goto exit; } dev_flow->handle->split_flow_id = tag_id; #ifdef HAVE_IBV_FLOW_DV_SUPPORT if (!modify_after_mirror) { /* Set the sfx group attr. */ sample_res = (struct mlx5_flow_dv_sample_resource *) dev_flow->dv.sample_res; sfx_tbl = (struct mlx5_flow_tbl_resource *) sample_res->normal_path_tbl; sfx_tbl_data = container_of(sfx_tbl, struct mlx5_flow_tbl_data_entry, tbl); sfx_attr.group = sfx_attr.transfer ? (sfx_tbl_data->table_id - 1) : sfx_tbl_data->table_id; } else { MLX5_ASSERT(attr->transfer); sfx_attr.group = jump_table; } flow_split_info->prefix_layers = flow_get_prefix_layer_flags(dev_flow); flow_split_info->prefix_mark = dev_flow->handle->mark; /* Suffix group level already be scaled with factor, set * MLX5_SCALE_FLOW_GROUP_BIT of skip_scale to 1 to avoid scale * again in translation. */ flow_split_info->skip_scale = 1 << MLX5_SCALE_FLOW_GROUP_BIT; #endif } /* Add the suffix subflow. */ ret = flow_create_split_meter(dev, flow, &sfx_attr, sfx_items ? sfx_items : items, sfx_actions ? sfx_actions : actions, flow_split_info, error); exit: if (sfx_actions) mlx5_free(sfx_actions); return ret; } /** * Split the flow to subflow set. The splitters might be linked * in the chain, like this: * flow_create_split_outer() calls: * flow_create_split_meter() calls: * flow_create_split_metadata(meter_subflow_0) calls: * flow_create_split_inner(metadata_subflow_0) * flow_create_split_inner(metadata_subflow_1) * flow_create_split_inner(metadata_subflow_2) * flow_create_split_metadata(meter_subflow_1) calls: * flow_create_split_inner(metadata_subflow_0) * flow_create_split_inner(metadata_subflow_1) * flow_create_split_inner(metadata_subflow_2) * * This provide flexible way to add new levels of flow splitting. * The all of successfully created subflows are included to the * parent flow dev_flow list. * * @param dev * Pointer to Ethernet device. * @param[in] flow * Parent flow structure pointer. * @param[in] attr * Flow rule attributes. * @param[in] items * Pattern specification (list terminated by the END pattern item). * @param[in] actions * Associated actions (list terminated by the END action). * @param[in] flow_split_info * Pointer to flow split info structure. * @param[out] error * Perform verbose error reporting if not NULL. * @return * 0 on success, negative value otherwise */ static int flow_create_split_outer(struct rte_eth_dev *dev, struct rte_flow *flow, const struct rte_flow_attr *attr, const struct rte_flow_item items[], const struct rte_flow_action actions[], struct mlx5_flow_split_info *flow_split_info, struct rte_flow_error *error) { int ret; ret = flow_create_split_sample(dev, flow, attr, items, actions, flow_split_info, error); MLX5_ASSERT(ret <= 0); return ret; } static struct mlx5_flow_tunnel * flow_tunnel_from_rule(struct rte_eth_dev *dev, const struct rte_flow_attr *attr, const struct rte_flow_item items[], const struct rte_flow_action actions[]) { struct mlx5_flow_tunnel *tunnel; #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wcast-qual" if (is_flow_tunnel_match_rule(dev, attr, items, actions)) tunnel = (struct mlx5_flow_tunnel *)items[0].spec; else if (is_flow_tunnel_steer_rule(dev, attr, items, actions)) tunnel = (struct mlx5_flow_tunnel *)actions[0].conf; else tunnel = NULL; #pragma GCC diagnostic pop return tunnel; } /** * Adjust flow RSS workspace if needed. * * @param wks * Pointer to thread flow work space. * @param rss_desc * Pointer to RSS descriptor. * @param[in] nrssq_num * New RSS queue number. * * @return * 0 on success, -1 otherwise and rte_errno is set. */ static int flow_rss_workspace_adjust(struct mlx5_flow_workspace *wks, struct mlx5_flow_rss_desc *rss_desc, uint32_t nrssq_num) { if (likely(nrssq_num <= wks->rssq_num)) return 0; rss_desc->queue = realloc(rss_desc->queue, sizeof(*rss_desc->queue) * RTE_ALIGN(nrssq_num, 2)); if (!rss_desc->queue) { rte_errno = ENOMEM; return -1; } wks->rssq_num = RTE_ALIGN(nrssq_num, 2); return 0; } /** * Create a flow and add it to @p list. * * @param dev * Pointer to Ethernet device. * @param list * Pointer to a TAILQ flow list. If this parameter NULL, * no list insertion occurred, flow is just created, * this is caller's responsibility to track the * created flow. * @param[in] attr * Flow rule attributes. * @param[in] items * Pattern specification (list terminated by the END pattern item). * @param[in] actions * Associated actions (list terminated by the END action). * @param[in] external * This flow rule is created by request external to PMD. * @param[out] error * Perform verbose error reporting if not NULL. * * @return * A flow index on success, 0 otherwise and rte_errno is set. */ static uint32_t flow_list_create(struct rte_eth_dev *dev, uint32_t *list, const struct rte_flow_attr *attr, const struct rte_flow_item items[], const struct rte_flow_action original_actions[], bool external, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; struct rte_flow *flow = NULL; struct mlx5_flow *dev_flow; const struct rte_flow_action_rss *rss = NULL; struct mlx5_translated_shared_action shared_actions[MLX5_MAX_SHARED_ACTIONS]; int shared_actions_n = MLX5_MAX_SHARED_ACTIONS; union { struct mlx5_flow_expand_rss buf; uint8_t buffer[2048]; } expand_buffer; union { struct rte_flow_action actions[MLX5_MAX_SPLIT_ACTIONS]; uint8_t buffer[2048]; } actions_rx; union { struct rte_flow_action actions[MLX5_MAX_SPLIT_ACTIONS]; uint8_t buffer[2048]; } actions_hairpin_tx; union { struct rte_flow_item items[MLX5_MAX_SPLIT_ITEMS]; uint8_t buffer[2048]; } items_tx; struct mlx5_flow_expand_rss *buf = &expand_buffer.buf; struct mlx5_flow_rss_desc *rss_desc; const struct rte_flow_action *p_actions_rx; uint32_t i; uint32_t idx = 0; int hairpin_flow; struct rte_flow_attr attr_tx = { .priority = 0 }; const struct rte_flow_action *actions; struct rte_flow_action *translated_actions = NULL; struct mlx5_flow_tunnel *tunnel; struct tunnel_default_miss_ctx default_miss_ctx = { 0, }; struct mlx5_flow_workspace *wks = mlx5_flow_push_thread_workspace(); struct mlx5_flow_split_info flow_split_info = { .external = !!external, .skip_scale = 0, .flow_idx = 0, .prefix_mark = 0, .prefix_layers = 0 }; int ret; MLX5_ASSERT(wks); rss_desc = &wks->rss_desc; ret = flow_shared_actions_translate(dev, original_actions, shared_actions, &shared_actions_n, &translated_actions, error); if (ret < 0) { MLX5_ASSERT(translated_actions == NULL); return 0; } actions = translated_actions ? translated_actions : original_actions; p_actions_rx = actions; hairpin_flow = flow_check_hairpin_split(dev, attr, actions); ret = flow_drv_validate(dev, attr, items, p_actions_rx, external, hairpin_flow, error); if (ret < 0) goto error_before_hairpin_split; flow = mlx5_ipool_zmalloc(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], &idx); if (!flow) { rte_errno = ENOMEM; goto error_before_hairpin_split; } if (hairpin_flow > 0) { if (hairpin_flow > MLX5_MAX_SPLIT_ACTIONS) { rte_errno = EINVAL; goto error_before_hairpin_split; } flow_hairpin_split(dev, actions, actions_rx.actions, actions_hairpin_tx.actions, items_tx.items, idx); p_actions_rx = actions_rx.actions; } flow_split_info.flow_idx = idx; flow->drv_type = flow_get_drv_type(dev, attr); MLX5_ASSERT(flow->drv_type > MLX5_FLOW_TYPE_MIN && flow->drv_type < MLX5_FLOW_TYPE_MAX); memset(rss_desc, 0, offsetof(struct mlx5_flow_rss_desc, queue)); /* RSS Action only works on NIC RX domain */ if (attr->ingress && !attr->transfer) rss = flow_get_rss_action(p_actions_rx); if (rss) { if (flow_rss_workspace_adjust(wks, rss_desc, rss->queue_num)) return 0; /* * The following information is required by * mlx5_flow_hashfields_adjust() in advance. */ rss_desc->level = rss->level; /* RSS type 0 indicates default RSS type (ETH_RSS_IP). */ rss_desc->types = !rss->types ? ETH_RSS_IP : rss->types; } flow->dev_handles = 0; if (rss && rss->types) { unsigned int graph_root; graph_root = find_graph_root(items, rss->level); ret = mlx5_flow_expand_rss(buf, sizeof(expand_buffer.buffer), items, rss->types, mlx5_support_expansion, graph_root); MLX5_ASSERT(ret > 0 && (unsigned int)ret < sizeof(expand_buffer.buffer)); } else { buf->entries = 1; buf->entry[0].pattern = (void *)(uintptr_t)items; } rss_desc->shared_rss = flow_get_shared_rss_action(dev, shared_actions, shared_actions_n); for (i = 0; i < buf->entries; ++i) { /* Initialize flow split data. */ flow_split_info.prefix_layers = 0; flow_split_info.prefix_mark = 0; flow_split_info.skip_scale = 0; /* * The splitter may create multiple dev_flows, * depending on configuration. In the simplest * case it just creates unmodified original flow. */ ret = flow_create_split_outer(dev, flow, attr, buf->entry[i].pattern, p_actions_rx, &flow_split_info, error); if (ret < 0) goto error; if (is_flow_tunnel_steer_rule(dev, attr, buf->entry[i].pattern, p_actions_rx)) { ret = flow_tunnel_add_default_miss(dev, flow, attr, p_actions_rx, idx, &default_miss_ctx, error); if (ret < 0) { mlx5_free(default_miss_ctx.queue); goto error; } } } /* Create the tx flow. */ if (hairpin_flow) { attr_tx.group = MLX5_HAIRPIN_TX_TABLE; attr_tx.ingress = 0; attr_tx.egress = 1; dev_flow = flow_drv_prepare(dev, flow, &attr_tx, items_tx.items, actions_hairpin_tx.actions, idx, error); if (!dev_flow) goto error; dev_flow->flow = flow; dev_flow->external = 0; SILIST_INSERT(&flow->dev_handles, dev_flow->handle_idx, dev_flow->handle, next); ret = flow_drv_translate(dev, dev_flow, &attr_tx, items_tx.items, actions_hairpin_tx.actions, error); if (ret < 0) goto error; } /* * Update the metadata register copy table. If extensive * metadata feature is enabled and registers are supported * we might create the extra rte_flow for each unique * MARK/FLAG action ID. * * The table is updated for ingress Flows only, because * the egress Flows belong to the different device and * copy table should be updated in peer NIC Rx domain. */ if (attr->ingress && (external || attr->group != MLX5_FLOW_MREG_CP_TABLE_GROUP)) { ret = flow_mreg_update_copy_table(dev, flow, actions, error); if (ret) goto error; } /* * If the flow is external (from application) OR device is started, * OR mreg discover, then apply immediately. */ if (external || dev->data->dev_started || (attr->group == MLX5_FLOW_MREG_CP_TABLE_GROUP && attr->priority == MLX5_FLOW_LOWEST_PRIO_INDICATOR)) { ret = flow_drv_apply(dev, flow, error); if (ret < 0) goto error; } if (list) { rte_spinlock_lock(&priv->flow_list_lock); ILIST_INSERT(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], list, idx, flow, next); rte_spinlock_unlock(&priv->flow_list_lock); } flow_rxq_flags_set(dev, flow); rte_free(translated_actions); tunnel = flow_tunnel_from_rule(dev, attr, items, actions); if (tunnel) { flow->tunnel = 1; flow->tunnel_id = tunnel->tunnel_id; __atomic_add_fetch(&tunnel->refctn, 1, __ATOMIC_RELAXED); mlx5_free(default_miss_ctx.queue); } mlx5_flow_pop_thread_workspace(); return idx; error: MLX5_ASSERT(flow); ret = rte_errno; /* Save rte_errno before cleanup. */ flow_mreg_del_copy_action(dev, flow); flow_drv_destroy(dev, flow); if (rss_desc->shared_rss) __atomic_sub_fetch(&((struct mlx5_shared_action_rss *) mlx5_ipool_get (priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS], rss_desc->shared_rss))->refcnt, 1, __ATOMIC_RELAXED); mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], idx); rte_errno = ret; /* Restore rte_errno. */ ret = rte_errno; rte_errno = ret; mlx5_flow_pop_thread_workspace(); error_before_hairpin_split: rte_free(translated_actions); return 0; } /** * Create a dedicated flow rule on e-switch table 0 (root table), to direct all * incoming packets to table 1. * * Other flow rules, requested for group n, will be created in * e-switch table n+1. * Jump action to e-switch group n will be created to group n+1. * * Used when working in switchdev mode, to utilise advantages of table 1 * and above. * * @param dev * Pointer to Ethernet device. * * @return * Pointer to flow on success, NULL otherwise and rte_errno is set. */ struct rte_flow * mlx5_flow_create_esw_table_zero_flow(struct rte_eth_dev *dev) { const struct rte_flow_attr attr = { .group = 0, .priority = 0, .ingress = 1, .egress = 0, .transfer = 1, }; const struct rte_flow_item pattern = { .type = RTE_FLOW_ITEM_TYPE_END, }; struct rte_flow_action_jump jump = { .group = 1, }; const struct rte_flow_action actions[] = { { .type = RTE_FLOW_ACTION_TYPE_JUMP, .conf = &jump, }, { .type = RTE_FLOW_ACTION_TYPE_END, }, }; struct mlx5_priv *priv = dev->data->dev_private; struct rte_flow_error error; return (void *)(uintptr_t)flow_list_create(dev, &priv->ctrl_flows, &attr, &pattern, actions, false, &error); } /** * Validate a flow supported by the NIC. * * @see rte_flow_validate() * @see rte_flow_ops */ int mlx5_flow_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr, const struct rte_flow_item items[], const struct rte_flow_action original_actions[], struct rte_flow_error *error) { int hairpin_flow; struct mlx5_translated_shared_action shared_actions[MLX5_MAX_SHARED_ACTIONS]; int shared_actions_n = MLX5_MAX_SHARED_ACTIONS; const struct rte_flow_action *actions; struct rte_flow_action *translated_actions = NULL; int ret = flow_shared_actions_translate(dev, original_actions, shared_actions, &shared_actions_n, &translated_actions, error); if (ret) return ret; actions = translated_actions ? translated_actions : original_actions; hairpin_flow = flow_check_hairpin_split(dev, attr, actions); ret = flow_drv_validate(dev, attr, items, actions, true, hairpin_flow, error); rte_free(translated_actions); return ret; } /** * Create a flow. * * @see rte_flow_create() * @see rte_flow_ops */ struct rte_flow * mlx5_flow_create(struct rte_eth_dev *dev, const struct rte_flow_attr *attr, const struct rte_flow_item items[], const struct rte_flow_action actions[], struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; /* * If the device is not started yet, it is not allowed to created a * flow from application. PMD default flows and traffic control flows * are not affected. */ if (unlikely(!dev->data->dev_started)) { DRV_LOG(DEBUG, "port %u is not started when " "inserting a flow", dev->data->port_id); rte_flow_error_set(error, ENODEV, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, "port not started"); return NULL; } return (void *)(uintptr_t)flow_list_create(dev, &priv->flows, attr, items, actions, true, error); } /** * Destroy a flow in a list. * * @param dev * Pointer to Ethernet device. * @param list * Pointer to the Indexed flow list. If this parameter NULL, * there is no flow removal from the list. Be noted that as * flow is add to the indexed list, memory of the indexed * list points to maybe changed as flow destroyed. * @param[in] flow_idx * Index of flow to destroy. */ static void flow_list_destroy(struct rte_eth_dev *dev, uint32_t *list, uint32_t flow_idx) { struct mlx5_priv *priv = dev->data->dev_private; struct rte_flow *flow = mlx5_ipool_get(priv->sh->ipool [MLX5_IPOOL_RTE_FLOW], flow_idx); if (!flow) return; /* * Update RX queue flags only if port is started, otherwise it is * already clean. */ if (dev->data->dev_started) flow_rxq_flags_trim(dev, flow); flow_drv_destroy(dev, flow); if (list) { rte_spinlock_lock(&priv->flow_list_lock); ILIST_REMOVE(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], list, flow_idx, flow, next); rte_spinlock_unlock(&priv->flow_list_lock); } if (flow->tunnel) { struct mlx5_flow_tunnel *tunnel; tunnel = mlx5_find_tunnel_id(dev, flow->tunnel_id); RTE_VERIFY(tunnel); if (!__atomic_sub_fetch(&tunnel->refctn, 1, __ATOMIC_RELAXED)) mlx5_flow_tunnel_free(dev, tunnel); } flow_mreg_del_copy_action(dev, flow); mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], flow_idx); } /** * Destroy all flows. * * @param dev * Pointer to Ethernet device. * @param list * Pointer to the Indexed flow list. * @param active * If flushing is called avtively. */ void mlx5_flow_list_flush(struct rte_eth_dev *dev, uint32_t *list, bool active) { uint32_t num_flushed = 0; while (*list) { flow_list_destroy(dev, list, *list); num_flushed++; } if (active) { DRV_LOG(INFO, "port %u: %u flows flushed before stopping", dev->data->port_id, num_flushed); } } /** * Stop all default actions for flows. * * @param dev * Pointer to Ethernet device. */ void mlx5_flow_stop_default(struct rte_eth_dev *dev) { flow_mreg_del_default_copy_action(dev); flow_rxq_flags_clear(dev); } /** * Start all default actions for flows. * * @param dev * Pointer to Ethernet device. * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_start_default(struct rte_eth_dev *dev) { struct rte_flow_error error; /* Make sure default copy action (reg_c[0] -> reg_b) is created. */ return flow_mreg_add_default_copy_action(dev, &error); } /** * Release key of thread specific flow workspace data. */ void flow_release_workspace(void *data) { struct mlx5_flow_workspace *wks = data; struct mlx5_flow_workspace *next; while (wks) { next = wks->next; free(wks->rss_desc.queue); free(wks); wks = next; } } /** * Get thread specific current flow workspace. * * @return pointer to thread specific flow workspace data, NULL on error. */ struct mlx5_flow_workspace* mlx5_flow_get_thread_workspace(void) { struct mlx5_flow_workspace *data; data = mlx5_flow_os_get_specific_workspace(); MLX5_ASSERT(data && data->inuse); if (!data || !data->inuse) DRV_LOG(ERR, "flow workspace not initialized."); return data; } /** * Allocate and init new flow workspace. * * @return pointer to flow workspace data, NULL on error. */ static struct mlx5_flow_workspace* flow_alloc_thread_workspace(void) { struct mlx5_flow_workspace *data = calloc(1, sizeof(*data)); if (!data) { DRV_LOG(ERR, "Failed to allocate flow workspace " "memory."); return NULL; } data->rss_desc.queue = calloc(1, sizeof(uint16_t) * MLX5_RSSQ_DEFAULT_NUM); if (!data->rss_desc.queue) goto err; data->rssq_num = MLX5_RSSQ_DEFAULT_NUM; return data; err: if (data->rss_desc.queue) free(data->rss_desc.queue); free(data); return NULL; } /** * Get new thread specific flow workspace. * * If current workspace inuse, create new one and set as current. * * @return pointer to thread specific flow workspace data, NULL on error. */ static struct mlx5_flow_workspace* mlx5_flow_push_thread_workspace(void) { struct mlx5_flow_workspace *curr; struct mlx5_flow_workspace *data; curr = mlx5_flow_os_get_specific_workspace(); if (!curr) { data = flow_alloc_thread_workspace(); if (!data) return NULL; } else if (!curr->inuse) { data = curr; } else if (curr->next) { data = curr->next; } else { data = flow_alloc_thread_workspace(); if (!data) return NULL; curr->next = data; data->prev = curr; } data->inuse = 1; data->flow_idx = 0; /* Set as current workspace */ if (mlx5_flow_os_set_specific_workspace(data)) DRV_LOG(ERR, "Failed to set flow workspace to thread."); return data; } /** * Close current thread specific flow workspace. * * If previous workspace available, set it as current. * * @return pointer to thread specific flow workspace data, NULL on error. */ static void mlx5_flow_pop_thread_workspace(void) { struct mlx5_flow_workspace *data = mlx5_flow_get_thread_workspace(); if (!data) return; if (!data->inuse) { DRV_LOG(ERR, "Failed to close unused flow workspace."); return; } data->inuse = 0; if (!data->prev) return; if (mlx5_flow_os_set_specific_workspace(data->prev)) DRV_LOG(ERR, "Failed to set flow workspace to thread."); } /** * Verify the flow list is empty * * @param dev * Pointer to Ethernet device. * * @return the number of flows not released. */ int mlx5_flow_verify(struct rte_eth_dev *dev) { struct mlx5_priv *priv = dev->data->dev_private; struct rte_flow *flow; uint32_t idx; int ret = 0; ILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], priv->flows, idx, flow, next) { DRV_LOG(DEBUG, "port %u flow %p still referenced", dev->data->port_id, (void *)flow); ++ret; } return ret; } /** * Enable default hairpin egress flow. * * @param dev * Pointer to Ethernet device. * @param queue * The queue index. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_ctrl_flow_source_queue(struct rte_eth_dev *dev, uint32_t queue) { struct mlx5_priv *priv = dev->data->dev_private; const struct rte_flow_attr attr = { .egress = 1, .priority = 0, }; struct mlx5_rte_flow_item_tx_queue queue_spec = { .queue = queue, }; struct mlx5_rte_flow_item_tx_queue queue_mask = { .queue = UINT32_MAX, }; struct rte_flow_item items[] = { { .type = (enum rte_flow_item_type) MLX5_RTE_FLOW_ITEM_TYPE_TX_QUEUE, .spec = &queue_spec, .last = NULL, .mask = &queue_mask, }, { .type = RTE_FLOW_ITEM_TYPE_END, }, }; struct rte_flow_action_jump jump = { .group = MLX5_HAIRPIN_TX_TABLE, }; struct rte_flow_action actions[2]; uint32_t flow_idx; struct rte_flow_error error; actions[0].type = RTE_FLOW_ACTION_TYPE_JUMP; actions[0].conf = &jump; actions[1].type = RTE_FLOW_ACTION_TYPE_END; flow_idx = flow_list_create(dev, &priv->ctrl_flows, &attr, items, actions, false, &error); if (!flow_idx) { DRV_LOG(DEBUG, "Failed to create ctrl flow: rte_errno(%d)," " type(%d), message(%s)", rte_errno, error.type, error.message ? error.message : " (no stated reason)"); return -rte_errno; } return 0; } /** * Enable a control flow configured from the control plane. * * @param dev * Pointer to Ethernet device. * @param eth_spec * An Ethernet flow spec to apply. * @param eth_mask * An Ethernet flow mask to apply. * @param vlan_spec * A VLAN flow spec to apply. * @param vlan_mask * A VLAN flow mask to apply. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_ctrl_flow_vlan(struct rte_eth_dev *dev, struct rte_flow_item_eth *eth_spec, struct rte_flow_item_eth *eth_mask, struct rte_flow_item_vlan *vlan_spec, struct rte_flow_item_vlan *vlan_mask) { struct mlx5_priv *priv = dev->data->dev_private; const struct rte_flow_attr attr = { .ingress = 1, .priority = MLX5_FLOW_LOWEST_PRIO_INDICATOR, }; struct rte_flow_item items[] = { { .type = RTE_FLOW_ITEM_TYPE_ETH, .spec = eth_spec, .last = NULL, .mask = eth_mask, }, { .type = (vlan_spec) ? RTE_FLOW_ITEM_TYPE_VLAN : RTE_FLOW_ITEM_TYPE_END, .spec = vlan_spec, .last = NULL, .mask = vlan_mask, }, { .type = RTE_FLOW_ITEM_TYPE_END, }, }; uint16_t queue[priv->reta_idx_n]; struct rte_flow_action_rss action_rss = { .func = RTE_ETH_HASH_FUNCTION_DEFAULT, .level = 0, .types = priv->rss_conf.rss_hf, .key_len = priv->rss_conf.rss_key_len, .queue_num = priv->reta_idx_n, .key = priv->rss_conf.rss_key, .queue = queue, }; struct rte_flow_action actions[] = { { .type = RTE_FLOW_ACTION_TYPE_RSS, .conf = &action_rss, }, { .type = RTE_FLOW_ACTION_TYPE_END, }, }; uint32_t flow_idx; struct rte_flow_error error; unsigned int i; if (!priv->reta_idx_n || !priv->rxqs_n) { return 0; } if (!(dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG)) action_rss.types = 0; for (i = 0; i != priv->reta_idx_n; ++i) queue[i] = (*priv->reta_idx)[i]; flow_idx = flow_list_create(dev, &priv->ctrl_flows, &attr, items, actions, false, &error); if (!flow_idx) return -rte_errno; return 0; } /** * Enable a flow control configured from the control plane. * * @param dev * Pointer to Ethernet device. * @param eth_spec * An Ethernet flow spec to apply. * @param eth_mask * An Ethernet flow mask to apply. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_ctrl_flow(struct rte_eth_dev *dev, struct rte_flow_item_eth *eth_spec, struct rte_flow_item_eth *eth_mask) { return mlx5_ctrl_flow_vlan(dev, eth_spec, eth_mask, NULL, NULL); } /** * Create default miss flow rule matching lacp traffic * * @param dev * Pointer to Ethernet device. * @param eth_spec * An Ethernet flow spec to apply. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_lacp_miss(struct rte_eth_dev *dev) { struct mlx5_priv *priv = dev->data->dev_private; /* * The LACP matching is done by only using ether type since using * a multicast dst mac causes kernel to give low priority to this flow. */ static const struct rte_flow_item_eth lacp_spec = { .type = RTE_BE16(0x8809), }; static const struct rte_flow_item_eth lacp_mask = { .type = 0xffff, }; const struct rte_flow_attr attr = { .ingress = 1, }; struct rte_flow_item items[] = { { .type = RTE_FLOW_ITEM_TYPE_ETH, .spec = &lacp_spec, .mask = &lacp_mask, }, { .type = RTE_FLOW_ITEM_TYPE_END, }, }; struct rte_flow_action actions[] = { { .type = (enum rte_flow_action_type) MLX5_RTE_FLOW_ACTION_TYPE_DEFAULT_MISS, }, { .type = RTE_FLOW_ACTION_TYPE_END, }, }; struct rte_flow_error error; uint32_t flow_idx = flow_list_create(dev, &priv->ctrl_flows, &attr, items, actions, false, &error); if (!flow_idx) return -rte_errno; return 0; } /** * Destroy a flow. * * @see rte_flow_destroy() * @see rte_flow_ops */ int mlx5_flow_destroy(struct rte_eth_dev *dev, struct rte_flow *flow, struct rte_flow_error *error __rte_unused) { struct mlx5_priv *priv = dev->data->dev_private; flow_list_destroy(dev, &priv->flows, (uintptr_t)(void *)flow); return 0; } /** * Destroy all flows. * * @see rte_flow_flush() * @see rte_flow_ops */ int mlx5_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error __rte_unused) { struct mlx5_priv *priv = dev->data->dev_private; mlx5_flow_list_flush(dev, &priv->flows, false); return 0; } /** * Isolated mode. * * @see rte_flow_isolate() * @see rte_flow_ops */ int mlx5_flow_isolate(struct rte_eth_dev *dev, int enable, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; if (dev->data->dev_started) { rte_flow_error_set(error, EBUSY, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, "port must be stopped first"); return -rte_errno; } priv->isolated = !!enable; if (enable) dev->dev_ops = &mlx5_dev_ops_isolate; else dev->dev_ops = &mlx5_dev_ops; dev->rx_descriptor_status = mlx5_rx_descriptor_status; dev->tx_descriptor_status = mlx5_tx_descriptor_status; return 0; } /** * Query a flow. * * @see rte_flow_query() * @see rte_flow_ops */ static int flow_drv_query(struct rte_eth_dev *dev, uint32_t flow_idx, const struct rte_flow_action *actions, void *data, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; const struct mlx5_flow_driver_ops *fops; struct rte_flow *flow = mlx5_ipool_get(priv->sh->ipool [MLX5_IPOOL_RTE_FLOW], flow_idx); enum mlx5_flow_drv_type ftype; if (!flow) { return rte_flow_error_set(error, ENOENT, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, "invalid flow handle"); } ftype = flow->drv_type; MLX5_ASSERT(ftype > MLX5_FLOW_TYPE_MIN && ftype < MLX5_FLOW_TYPE_MAX); fops = flow_get_drv_ops(ftype); return fops->query(dev, flow, actions, data, error); } /** * Query a flow. * * @see rte_flow_query() * @see rte_flow_ops */ int mlx5_flow_query(struct rte_eth_dev *dev, struct rte_flow *flow, const struct rte_flow_action *actions, void *data, struct rte_flow_error *error) { int ret; ret = flow_drv_query(dev, (uintptr_t)(void *)flow, actions, data, error); if (ret < 0) return ret; return 0; } /** * Manage filter operations. * * @param dev * Pointer to Ethernet device structure. * @param filter_type * Filter type. * @param filter_op * Operation to perform. * @param arg * Pointer to operation-specific structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type, enum rte_filter_op filter_op, void *arg) { switch (filter_type) { case RTE_ETH_FILTER_GENERIC: if (filter_op != RTE_ETH_FILTER_GET) { rte_errno = EINVAL; return -rte_errno; } *(const void **)arg = &mlx5_flow_ops; return 0; default: DRV_LOG(ERR, "port %u filter type (%d) not supported", dev->data->port_id, filter_type); rte_errno = ENOTSUP; return -rte_errno; } return 0; } /** * Create the needed meter and suffix tables. * * @param[in] dev * Pointer to Ethernet device. * @param[in] fm * Pointer to the flow meter. * * @return * Pointer to table set on success, NULL otherwise. */ struct mlx5_meter_domains_infos * mlx5_flow_create_mtr_tbls(struct rte_eth_dev *dev, const struct mlx5_flow_meter *fm) { const struct mlx5_flow_driver_ops *fops; fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV); return fops->create_mtr_tbls(dev, fm); } /** * Destroy the meter table set. * * @param[in] dev * Pointer to Ethernet device. * @param[in] tbl * Pointer to the meter table set. * * @return * 0 on success. */ int mlx5_flow_destroy_mtr_tbls(struct rte_eth_dev *dev, struct mlx5_meter_domains_infos *tbls) { const struct mlx5_flow_driver_ops *fops; fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV); return fops->destroy_mtr_tbls(dev, tbls); } /** * Create policer rules. * * @param[in] dev * Pointer to Ethernet device. * @param[in] fm * Pointer to flow meter structure. * @param[in] attr * Pointer to flow attributes. * * @return * 0 on success, -1 otherwise. */ int mlx5_flow_create_policer_rules(struct rte_eth_dev *dev, struct mlx5_flow_meter *fm, const struct rte_flow_attr *attr) { const struct mlx5_flow_driver_ops *fops; fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV); return fops->create_policer_rules(dev, fm, attr); } /** * Destroy policer rules. * * @param[in] fm * Pointer to flow meter structure. * @param[in] attr * Pointer to flow attributes. * * @return * 0 on success, -1 otherwise. */ int mlx5_flow_destroy_policer_rules(struct rte_eth_dev *dev, struct mlx5_flow_meter *fm, const struct rte_flow_attr *attr) { const struct mlx5_flow_driver_ops *fops; fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV); return fops->destroy_policer_rules(dev, fm, attr); } /** * Allocate a counter. * * @param[in] dev * Pointer to Ethernet device structure. * * @return * Index to allocated counter on success, 0 otherwise. */ uint32_t mlx5_counter_alloc(struct rte_eth_dev *dev) { const struct mlx5_flow_driver_ops *fops; struct rte_flow_attr attr = { .transfer = 0 }; if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) { fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV); return fops->counter_alloc(dev); } DRV_LOG(ERR, "port %u counter allocate is not supported.", dev->data->port_id); return 0; } /** * Free a counter. * * @param[in] dev * Pointer to Ethernet device structure. * @param[in] cnt * Index to counter to be free. */ void mlx5_counter_free(struct rte_eth_dev *dev, uint32_t cnt) { const struct mlx5_flow_driver_ops *fops; struct rte_flow_attr attr = { .transfer = 0 }; if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) { fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV); fops->counter_free(dev, cnt); return; } DRV_LOG(ERR, "port %u counter free is not supported.", dev->data->port_id); } /** * Query counter statistics. * * @param[in] dev * Pointer to Ethernet device structure. * @param[in] cnt * Index to counter to query. * @param[in] clear * Set to clear counter statistics. * @param[out] pkts * The counter hits packets number to save. * @param[out] bytes * The counter hits bytes number to save. * * @return * 0 on success, a negative errno value otherwise. */ int mlx5_counter_query(struct rte_eth_dev *dev, uint32_t cnt, bool clear, uint64_t *pkts, uint64_t *bytes) { const struct mlx5_flow_driver_ops *fops; struct rte_flow_attr attr = { .transfer = 0 }; if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) { fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV); return fops->counter_query(dev, cnt, clear, pkts, bytes); } DRV_LOG(ERR, "port %u counter query is not supported.", dev->data->port_id); return -ENOTSUP; } /** * Allocate a new memory for the counter values wrapped by all the needed * management. * * @param[in] sh * Pointer to mlx5_dev_ctx_shared object. * * @return * 0 on success, a negative errno value otherwise. */ static int mlx5_flow_create_counter_stat_mem_mng(struct mlx5_dev_ctx_shared *sh) { struct mlx5_devx_mkey_attr mkey_attr; struct mlx5_counter_stats_mem_mng *mem_mng; volatile struct flow_counter_stats *raw_data; int raws_n = MLX5_CNT_CONTAINER_RESIZE + MLX5_MAX_PENDING_QUERIES; int size = (sizeof(struct flow_counter_stats) * MLX5_COUNTERS_PER_POOL + sizeof(struct mlx5_counter_stats_raw)) * raws_n + sizeof(struct mlx5_counter_stats_mem_mng); size_t pgsize = rte_mem_page_size(); uint8_t *mem; int i; if (pgsize == (size_t)-1) { DRV_LOG(ERR, "Failed to get mem page size"); rte_errno = ENOMEM; return -ENOMEM; } mem = mlx5_malloc(MLX5_MEM_ZERO, size, pgsize, SOCKET_ID_ANY); if (!mem) { rte_errno = ENOMEM; return -ENOMEM; } mem_mng = (struct mlx5_counter_stats_mem_mng *)(mem + size) - 1; size = sizeof(*raw_data) * MLX5_COUNTERS_PER_POOL * raws_n; mem_mng->umem = mlx5_os_umem_reg(sh->ctx, mem, size, IBV_ACCESS_LOCAL_WRITE); if (!mem_mng->umem) { rte_errno = errno; mlx5_free(mem); return -rte_errno; } mkey_attr.addr = (uintptr_t)mem; mkey_attr.size = size; mkey_attr.umem_id = mlx5_os_get_umem_id(mem_mng->umem); mkey_attr.pd = sh->pdn; mkey_attr.log_entity_size = 0; mkey_attr.pg_access = 0; mkey_attr.klm_array = NULL; mkey_attr.klm_num = 0; mkey_attr.relaxed_ordering_write = sh->cmng.relaxed_ordering_write; mkey_attr.relaxed_ordering_read = sh->cmng.relaxed_ordering_read; mem_mng->dm = mlx5_devx_cmd_mkey_create(sh->ctx, &mkey_attr); if (!mem_mng->dm) { mlx5_os_umem_dereg(mem_mng->umem); rte_errno = errno; mlx5_free(mem); return -rte_errno; } mem_mng->raws = (struct mlx5_counter_stats_raw *)(mem + size); raw_data = (volatile struct flow_counter_stats *)mem; for (i = 0; i < raws_n; ++i) { mem_mng->raws[i].mem_mng = mem_mng; mem_mng->raws[i].data = raw_data + i * MLX5_COUNTERS_PER_POOL; } for (i = 0; i < MLX5_MAX_PENDING_QUERIES; ++i) LIST_INSERT_HEAD(&sh->cmng.free_stat_raws, mem_mng->raws + MLX5_CNT_CONTAINER_RESIZE + i, next); LIST_INSERT_HEAD(&sh->cmng.mem_mngs, mem_mng, next); sh->cmng.mem_mng = mem_mng; return 0; } /** * Set the statistic memory to the new counter pool. * * @param[in] sh * Pointer to mlx5_dev_ctx_shared object. * @param[in] pool * Pointer to the pool to set the statistic memory. * * @return * 0 on success, a negative errno value otherwise. */ static int mlx5_flow_set_counter_stat_mem(struct mlx5_dev_ctx_shared *sh, struct mlx5_flow_counter_pool *pool) { struct mlx5_flow_counter_mng *cmng = &sh->cmng; /* Resize statistic memory once used out. */ if (!(pool->index % MLX5_CNT_CONTAINER_RESIZE) && mlx5_flow_create_counter_stat_mem_mng(sh)) { DRV_LOG(ERR, "Cannot resize counter stat mem."); return -1; } rte_spinlock_lock(&pool->sl); pool->raw = cmng->mem_mng->raws + pool->index % MLX5_CNT_CONTAINER_RESIZE; rte_spinlock_unlock(&pool->sl); pool->raw_hw = NULL; return 0; } #define MLX5_POOL_QUERY_FREQ_US 1000000 /** * Set the periodic procedure for triggering asynchronous batch queries for all * the counter pools. * * @param[in] sh * Pointer to mlx5_dev_ctx_shared object. */ void mlx5_set_query_alarm(struct mlx5_dev_ctx_shared *sh) { uint32_t pools_n, us; pools_n = __atomic_load_n(&sh->cmng.n_valid, __ATOMIC_RELAXED); us = MLX5_POOL_QUERY_FREQ_US / pools_n; DRV_LOG(DEBUG, "Set alarm for %u pools each %u us", pools_n, us); if (rte_eal_alarm_set(us, mlx5_flow_query_alarm, sh)) { sh->cmng.query_thread_on = 0; DRV_LOG(ERR, "Cannot reinitialize query alarm"); } else { sh->cmng.query_thread_on = 1; } } /** * The periodic procedure for triggering asynchronous batch queries for all the * counter pools. This function is probably called by the host thread. * * @param[in] arg * The parameter for the alarm process. */ void mlx5_flow_query_alarm(void *arg) { struct mlx5_dev_ctx_shared *sh = arg; int ret; uint16_t pool_index = sh->cmng.pool_index; struct mlx5_flow_counter_mng *cmng = &sh->cmng; struct mlx5_flow_counter_pool *pool; uint16_t n_valid; if (sh->cmng.pending_queries >= MLX5_MAX_PENDING_QUERIES) goto set_alarm; rte_spinlock_lock(&cmng->pool_update_sl); pool = cmng->pools[pool_index]; n_valid = cmng->n_valid; rte_spinlock_unlock(&cmng->pool_update_sl); /* Set the statistic memory to the new created pool. */ if ((!pool->raw && mlx5_flow_set_counter_stat_mem(sh, pool))) goto set_alarm; if (pool->raw_hw) /* There is a pool query in progress. */ goto set_alarm; pool->raw_hw = LIST_FIRST(&sh->cmng.free_stat_raws); if (!pool->raw_hw) /* No free counter statistics raw memory. */ goto set_alarm; /* * Identify the counters released between query trigger and query * handle more efficiently. The counter released in this gap period * should wait for a new round of query as the new arrived packets * will not be taken into account. */ pool->query_gen++; ret = mlx5_devx_cmd_flow_counter_query(pool->min_dcs, 0, MLX5_COUNTERS_PER_POOL, NULL, NULL, pool->raw_hw->mem_mng->dm->id, (void *)(uintptr_t) pool->raw_hw->data, sh->devx_comp, (uint64_t)(uintptr_t)pool); if (ret) { DRV_LOG(ERR, "Failed to trigger asynchronous query for dcs ID" " %d", pool->min_dcs->id); pool->raw_hw = NULL; goto set_alarm; } LIST_REMOVE(pool->raw_hw, next); sh->cmng.pending_queries++; pool_index++; if (pool_index >= n_valid) pool_index = 0; set_alarm: sh->cmng.pool_index = pool_index; mlx5_set_query_alarm(sh); } /** * Check and callback event for new aged flow in the counter pool * * @param[in] sh * Pointer to mlx5_dev_ctx_shared object. * @param[in] pool * Pointer to Current counter pool. */ static void mlx5_flow_aging_check(struct mlx5_dev_ctx_shared *sh, struct mlx5_flow_counter_pool *pool) { struct mlx5_priv *priv; struct mlx5_flow_counter *cnt; struct mlx5_age_info *age_info; struct mlx5_age_param *age_param; struct mlx5_counter_stats_raw *cur = pool->raw_hw; struct mlx5_counter_stats_raw *prev = pool->raw; const uint64_t curr_time = MLX5_CURR_TIME_SEC; const uint32_t time_delta = curr_time - pool->time_of_last_age_check; uint16_t expected = AGE_CANDIDATE; uint32_t i; pool->time_of_last_age_check = curr_time; for (i = 0; i < MLX5_COUNTERS_PER_POOL; ++i) { cnt = MLX5_POOL_GET_CNT(pool, i); age_param = MLX5_CNT_TO_AGE(cnt); if (__atomic_load_n(&age_param->state, __ATOMIC_RELAXED) != AGE_CANDIDATE) continue; if (cur->data[i].hits != prev->data[i].hits) { __atomic_store_n(&age_param->sec_since_last_hit, 0, __ATOMIC_RELAXED); continue; } if (__atomic_add_fetch(&age_param->sec_since_last_hit, time_delta, __ATOMIC_RELAXED) <= age_param->timeout) continue; /** * Hold the lock first, or if between the * state AGE_TMOUT and tailq operation the * release happened, the release procedure * may delete a non-existent tailq node. */ priv = rte_eth_devices[age_param->port_id].data->dev_private; age_info = GET_PORT_AGE_INFO(priv); rte_spinlock_lock(&age_info->aged_sl); if (__atomic_compare_exchange_n(&age_param->state, &expected, AGE_TMOUT, false, __ATOMIC_RELAXED, __ATOMIC_RELAXED)) { TAILQ_INSERT_TAIL(&age_info->aged_counters, cnt, next); MLX5_AGE_SET(age_info, MLX5_AGE_EVENT_NEW); } rte_spinlock_unlock(&age_info->aged_sl); } mlx5_age_event_prepare(sh); } /** * Handler for the HW respond about ready values from an asynchronous batch * query. This function is probably called by the host thread. * * @param[in] sh * The pointer to the shared device context. * @param[in] async_id * The Devx async ID. * @param[in] status * The status of the completion. */ void mlx5_flow_async_pool_query_handle(struct mlx5_dev_ctx_shared *sh, uint64_t async_id, int status) { struct mlx5_flow_counter_pool *pool = (struct mlx5_flow_counter_pool *)(uintptr_t)async_id; struct mlx5_counter_stats_raw *raw_to_free; uint8_t query_gen = pool->query_gen ^ 1; struct mlx5_flow_counter_mng *cmng = &sh->cmng; enum mlx5_counter_type cnt_type = pool->is_aged ? MLX5_COUNTER_TYPE_AGE : MLX5_COUNTER_TYPE_ORIGIN; if (unlikely(status)) { raw_to_free = pool->raw_hw; } else { raw_to_free = pool->raw; if (pool->is_aged) mlx5_flow_aging_check(sh, pool); rte_spinlock_lock(&pool->sl); pool->raw = pool->raw_hw; rte_spinlock_unlock(&pool->sl); /* Be sure the new raw counters data is updated in memory. */ rte_io_wmb(); if (!TAILQ_EMPTY(&pool->counters[query_gen])) { rte_spinlock_lock(&cmng->csl[cnt_type]); TAILQ_CONCAT(&cmng->counters[cnt_type], &pool->counters[query_gen], next); rte_spinlock_unlock(&cmng->csl[cnt_type]); } } LIST_INSERT_HEAD(&sh->cmng.free_stat_raws, raw_to_free, next); pool->raw_hw = NULL; sh->cmng.pending_queries--; } static int flow_group_to_table(uint32_t port_id, uint32_t group, uint32_t *table, const struct flow_grp_info *grp_info, struct rte_flow_error *error) { if (grp_info->transfer && grp_info->external && grp_info->fdb_def_rule) { if (group == UINT32_MAX) return rte_flow_error_set (error, EINVAL, RTE_FLOW_ERROR_TYPE_ATTR_GROUP, NULL, "group index not supported"); *table = group + 1; } else { *table = group; } DRV_LOG(DEBUG, "port %u group=%#x table=%#x", port_id, group, *table); return 0; } /** * Translate the rte_flow group index to HW table value. * * If tunnel offload is disabled, all group ids converted to flow table * id using the standard method. * If tunnel offload is enabled, group id can be converted using the * standard or tunnel conversion method. Group conversion method * selection depends on flags in `grp_info` parameter: * - Internal (grp_info.external == 0) groups conversion uses the * standard method. * - Group ids in JUMP action converted with the tunnel conversion. * - Group id in rule attribute conversion depends on a rule type and * group id value: * ** non zero group attributes converted with the tunnel method * ** zero group attribute in non-tunnel rule is converted using the * standard method - there's only one root table * ** zero group attribute in steer tunnel rule is converted with the * standard method - single root table * ** zero group attribute in match tunnel rule is a special OvS * case: that value is used for portability reasons. That group * id is converted with the tunnel conversion method. * * @param[in] dev * Port device * @param[in] tunnel * PMD tunnel offload object * @param[in] group * rte_flow group index value. * @param[out] table * HW table value. * @param[in] grp_info * flags used for conversion * @param[out] error * Pointer to error structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_group_to_table(struct rte_eth_dev *dev, const struct mlx5_flow_tunnel *tunnel, uint32_t group, uint32_t *table, const struct flow_grp_info *grp_info, struct rte_flow_error *error) { int ret; bool standard_translation; if (!grp_info->skip_scale && grp_info->external && group < MLX5_MAX_TABLES_EXTERNAL) group *= MLX5_FLOW_TABLE_FACTOR; if (is_tunnel_offload_active(dev)) { standard_translation = !grp_info->external || grp_info->std_tbl_fix; } else { standard_translation = true; } DRV_LOG(DEBUG, "port %u group=%u transfer=%d external=%d fdb_def_rule=%d translate=%s", dev->data->port_id, group, grp_info->transfer, grp_info->external, grp_info->fdb_def_rule, standard_translation ? "STANDARD" : "TUNNEL"); if (standard_translation) ret = flow_group_to_table(dev->data->port_id, group, table, grp_info, error); else ret = tunnel_flow_group_to_flow_table(dev, tunnel, group, table, error); return ret; } /** * Discover availability of metadata reg_c's. * * Iteratively use test flows to check availability. * * @param[in] dev * Pointer to the Ethernet device structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_discover_mreg_c(struct rte_eth_dev *dev) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_dev_config *config = &priv->config; enum modify_reg idx; int n = 0; /* reg_c[0] and reg_c[1] are reserved. */ config->flow_mreg_c[n++] = REG_C_0; config->flow_mreg_c[n++] = REG_C_1; /* Discover availability of other reg_c's. */ for (idx = REG_C_2; idx <= REG_C_7; ++idx) { struct rte_flow_attr attr = { .group = MLX5_FLOW_MREG_CP_TABLE_GROUP, .priority = MLX5_FLOW_LOWEST_PRIO_INDICATOR, .ingress = 1, }; struct rte_flow_item items[] = { [0] = { .type = RTE_FLOW_ITEM_TYPE_END, }, }; struct rte_flow_action actions[] = { [0] = { .type = (enum rte_flow_action_type) MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG, .conf = &(struct mlx5_flow_action_copy_mreg){ .src = REG_C_1, .dst = idx, }, }, [1] = { .type = RTE_FLOW_ACTION_TYPE_JUMP, .conf = &(struct rte_flow_action_jump){ .group = MLX5_FLOW_MREG_ACT_TABLE_GROUP, }, }, [2] = { .type = RTE_FLOW_ACTION_TYPE_END, }, }; uint32_t flow_idx; struct rte_flow *flow; struct rte_flow_error error; if (!config->dv_flow_en) break; /* Create internal flow, validation skips copy action. */ flow_idx = flow_list_create(dev, NULL, &attr, items, actions, false, &error); flow = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_RTE_FLOW], flow_idx); if (!flow) continue; config->flow_mreg_c[n++] = idx; flow_list_destroy(dev, NULL, flow_idx); } for (; n < MLX5_MREG_C_NUM; ++n) config->flow_mreg_c[n] = REG_NON; return 0; } /** * Dump flow raw hw data to file * * @param[in] dev * The pointer to Ethernet device. * @param[in] file * A pointer to a file for output. * @param[out] error * Perform verbose error reporting if not NULL. PMDs initialize this * structure in case of error only. * @return * 0 on success, a nagative value otherwise. */ int mlx5_flow_dev_dump(struct rte_eth_dev *dev, FILE *file, struct rte_flow_error *error __rte_unused) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_dev_ctx_shared *sh = priv->sh; if (!priv->config.dv_flow_en) { if (fputs("device dv flow disabled\n", file) <= 0) return -errno; return -ENOTSUP; } return mlx5_devx_cmd_flow_dump(sh->fdb_domain, sh->rx_domain, sh->tx_domain, file); } /** * Get aged-out flows. * * @param[in] dev * Pointer to the Ethernet device structure. * @param[in] context * The address of an array of pointers to the aged-out flows contexts. * @param[in] nb_countexts * The length of context array pointers. * @param[out] error * Perform verbose error reporting if not NULL. Initialized in case of * error only. * * @return * how many contexts get in success, otherwise negative errno value. * if nb_contexts is 0, return the amount of all aged contexts. * if nb_contexts is not 0 , return the amount of aged flows reported * in the context array. */ int mlx5_flow_get_aged_flows(struct rte_eth_dev *dev, void **contexts, uint32_t nb_contexts, struct rte_flow_error *error) { const struct mlx5_flow_driver_ops *fops; struct rte_flow_attr attr = { .transfer = 0 }; if (flow_get_drv_type(dev, &attr) == MLX5_FLOW_TYPE_DV) { fops = flow_get_drv_ops(MLX5_FLOW_TYPE_DV); return fops->get_aged_flows(dev, contexts, nb_contexts, error); } DRV_LOG(ERR, "port %u get aged flows is not supported.", dev->data->port_id); return -ENOTSUP; } /* Wrapper for driver action_validate op callback */ static int flow_drv_action_validate(struct rte_eth_dev *dev, const struct rte_flow_shared_action_conf *conf, const struct rte_flow_action *action, const struct mlx5_flow_driver_ops *fops, struct rte_flow_error *error) { static const char err_msg[] = "shared action validation unsupported"; if (!fops->action_validate) { DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg); rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, NULL, err_msg); return -rte_errno; } return fops->action_validate(dev, conf, action, error); } /** * Destroys the shared action by handle. * * @param dev * Pointer to Ethernet device structure. * @param[in] action * Handle for the shared action to be destroyed. * @param[out] error * Perform verbose error reporting if not NULL. PMDs initialize this * structure in case of error only. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. * * @note: wrapper for driver action_create op callback. */ static int mlx5_shared_action_destroy(struct rte_eth_dev *dev, struct rte_flow_shared_action *action, struct rte_flow_error *error) { static const char err_msg[] = "shared action destruction unsupported"; struct rte_flow_attr attr = { .transfer = 0 }; const struct mlx5_flow_driver_ops *fops = flow_get_drv_ops(flow_get_drv_type(dev, &attr)); if (!fops->action_destroy) { DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg); rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, NULL, err_msg); return -rte_errno; } return fops->action_destroy(dev, action, error); } /* Wrapper for driver action_destroy op callback */ static int flow_drv_action_update(struct rte_eth_dev *dev, struct rte_flow_shared_action *action, const void *action_conf, const struct mlx5_flow_driver_ops *fops, struct rte_flow_error *error) { static const char err_msg[] = "shared action update unsupported"; if (!fops->action_update) { DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg); rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, NULL, err_msg); return -rte_errno; } return fops->action_update(dev, action, action_conf, error); } /* Wrapper for driver action_destroy op callback */ static int flow_drv_action_query(struct rte_eth_dev *dev, const struct rte_flow_shared_action *action, void *data, const struct mlx5_flow_driver_ops *fops, struct rte_flow_error *error) { static const char err_msg[] = "shared action query unsupported"; if (!fops->action_query) { DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg); rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, NULL, err_msg); return -rte_errno; } return fops->action_query(dev, action, data, error); } /** * Create shared action for reuse in multiple flow rules. * * @param dev * Pointer to Ethernet device structure. * @param[in] action * Action configuration for shared action creation. * @param[out] error * Perform verbose error reporting if not NULL. PMDs initialize this * structure in case of error only. * @return * A valid handle in case of success, NULL otherwise and rte_errno is set. */ static struct rte_flow_shared_action * mlx5_shared_action_create(struct rte_eth_dev *dev, const struct rte_flow_shared_action_conf *conf, const struct rte_flow_action *action, struct rte_flow_error *error) { static const char err_msg[] = "shared action creation unsupported"; struct rte_flow_attr attr = { .transfer = 0 }; const struct mlx5_flow_driver_ops *fops = flow_get_drv_ops(flow_get_drv_type(dev, &attr)); if (flow_drv_action_validate(dev, conf, action, fops, error)) return NULL; if (!fops->action_create) { DRV_LOG(ERR, "port %u %s.", dev->data->port_id, err_msg); rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, NULL, err_msg); return NULL; } return fops->action_create(dev, conf, action, error); } /** * Updates inplace the shared action configuration pointed by *action* handle * with the configuration provided as *action* argument. * The update of the shared action configuration effects all flow rules reusing * the action via handle. * * @param dev * Pointer to Ethernet device structure. * @param[in] shared_action * Handle for the shared action to be updated. * @param[in] action * Action specification used to modify the action pointed by handle. * *action* should be of same type with the action pointed by the *action* * handle argument, otherwise considered as invalid. * @param[out] error * Perform verbose error reporting if not NULL. PMDs initialize this * structure in case of error only. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_shared_action_update(struct rte_eth_dev *dev, struct rte_flow_shared_action *shared_action, const struct rte_flow_action *action, struct rte_flow_error *error) { struct rte_flow_attr attr = { .transfer = 0 }; const struct mlx5_flow_driver_ops *fops = flow_get_drv_ops(flow_get_drv_type(dev, &attr)); int ret; ret = flow_drv_action_validate(dev, NULL, action, fops, error); if (ret) return ret; return flow_drv_action_update(dev, shared_action, action->conf, fops, error); } /** * Query the shared action by handle. * * This function allows retrieving action-specific data such as counters. * Data is gathered by special action which may be present/referenced in * more than one flow rule definition. * * \see RTE_FLOW_ACTION_TYPE_COUNT * * @param dev * Pointer to Ethernet device structure. * @param[in] action * Handle for the shared action to query. * @param[in, out] data * Pointer to storage for the associated query data type. * @param[out] error * Perform verbose error reporting if not NULL. PMDs initialize this * structure in case of error only. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_shared_action_query(struct rte_eth_dev *dev, const struct rte_flow_shared_action *action, void *data, struct rte_flow_error *error) { struct rte_flow_attr attr = { .transfer = 0 }; const struct mlx5_flow_driver_ops *fops = flow_get_drv_ops(flow_get_drv_type(dev, &attr)); return flow_drv_action_query(dev, action, data, fops, error); } /** * Destroy all shared actions. * * @param dev * Pointer to Ethernet device. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_shared_action_flush(struct rte_eth_dev *dev) { struct rte_flow_error error; struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_shared_action_rss *shared_rss; int ret = 0; uint32_t idx; ILIST_FOREACH(priv->sh->ipool[MLX5_IPOOL_RSS_SHARED_ACTIONS], priv->rss_shared_actions, idx, shared_rss, next) { ret |= mlx5_shared_action_destroy(dev, (struct rte_flow_shared_action *)(uintptr_t)idx, &error); } return ret; } #ifndef HAVE_MLX5DV_DR #define MLX5_DOMAIN_SYNC_FLOW ((1 << 0) | (1 << 1)) #else #define MLX5_DOMAIN_SYNC_FLOW \ (MLX5DV_DR_DOMAIN_SYNC_FLAGS_SW | MLX5DV_DR_DOMAIN_SYNC_FLAGS_HW) #endif int rte_pmd_mlx5_sync_flow(uint16_t port_id, uint32_t domains) { struct rte_eth_dev *dev = &rte_eth_devices[port_id]; const struct mlx5_flow_driver_ops *fops; int ret; struct rte_flow_attr attr = { .transfer = 0 }; fops = flow_get_drv_ops(flow_get_drv_type(dev, &attr)); ret = fops->sync_domain(dev, domains, MLX5_DOMAIN_SYNC_FLOW); if (ret > 0) ret = -ret; return ret; } /** * tunnel offload functionalilty is defined for DV environment only */ #ifdef HAVE_IBV_FLOW_DV_SUPPORT __extension__ union tunnel_offload_mark { uint32_t val; struct { uint32_t app_reserve:8; uint32_t table_id:15; uint32_t transfer:1; uint32_t _unused_:8; }; }; static bool mlx5_access_tunnel_offload_db (struct rte_eth_dev *dev, bool (*match)(struct rte_eth_dev *, struct mlx5_flow_tunnel *, const void *), void (*hit)(struct rte_eth_dev *, struct mlx5_flow_tunnel *, void *), void (*miss)(struct rte_eth_dev *, void *), void *ctx, bool lock_op); static int flow_tunnel_add_default_miss(struct rte_eth_dev *dev, struct rte_flow *flow, const struct rte_flow_attr *attr, const struct rte_flow_action *app_actions, uint32_t flow_idx, struct tunnel_default_miss_ctx *ctx, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_flow *dev_flow; struct rte_flow_attr miss_attr = *attr; const struct mlx5_flow_tunnel *tunnel = app_actions[0].conf; const struct rte_flow_item miss_items[2] = { { .type = RTE_FLOW_ITEM_TYPE_ETH, .spec = NULL, .last = NULL, .mask = NULL }, { .type = RTE_FLOW_ITEM_TYPE_END, .spec = NULL, .last = NULL, .mask = NULL } }; union tunnel_offload_mark mark_id; struct rte_flow_action_mark miss_mark; struct rte_flow_action miss_actions[3] = { [0] = { .type = RTE_FLOW_ACTION_TYPE_MARK, .conf = &miss_mark }, [2] = { .type = RTE_FLOW_ACTION_TYPE_END, .conf = NULL } }; const struct rte_flow_action_jump *jump_data; uint32_t i, flow_table = 0; /* prevent compilation warning */ struct flow_grp_info grp_info = { .external = 1, .transfer = attr->transfer, .fdb_def_rule = !!priv->fdb_def_rule, .std_tbl_fix = 0, }; int ret; if (!attr->transfer) { uint32_t q_size; miss_actions[1].type = RTE_FLOW_ACTION_TYPE_RSS; q_size = priv->reta_idx_n * sizeof(ctx->queue[0]); ctx->queue = mlx5_malloc(MLX5_MEM_SYS | MLX5_MEM_ZERO, q_size, 0, SOCKET_ID_ANY); if (!ctx->queue) return rte_flow_error_set (error, ENOMEM, RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL, "invalid default miss RSS"); ctx->action_rss.func = RTE_ETH_HASH_FUNCTION_DEFAULT, ctx->action_rss.level = 0, ctx->action_rss.types = priv->rss_conf.rss_hf, ctx->action_rss.key_len = priv->rss_conf.rss_key_len, ctx->action_rss.queue_num = priv->reta_idx_n, ctx->action_rss.key = priv->rss_conf.rss_key, ctx->action_rss.queue = ctx->queue; if (!priv->reta_idx_n || !priv->rxqs_n) return rte_flow_error_set (error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL, "invalid port configuration"); if (!(dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG)) ctx->action_rss.types = 0; for (i = 0; i != priv->reta_idx_n; ++i) ctx->queue[i] = (*priv->reta_idx)[i]; } else { miss_actions[1].type = RTE_FLOW_ACTION_TYPE_JUMP; ctx->miss_jump.group = MLX5_TNL_MISS_FDB_JUMP_GRP; } miss_actions[1].conf = (typeof(miss_actions[1].conf))ctx->raw; for (; app_actions->type != RTE_FLOW_ACTION_TYPE_JUMP; app_actions++); jump_data = app_actions->conf; miss_attr.priority = MLX5_TNL_MISS_RULE_PRIORITY; miss_attr.group = jump_data->group; ret = mlx5_flow_group_to_table(dev, tunnel, jump_data->group, &flow_table, &grp_info, error); if (ret) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL, "invalid tunnel id"); mark_id.app_reserve = 0; mark_id.table_id = tunnel_flow_tbl_to_id(flow_table); mark_id.transfer = !!attr->transfer; mark_id._unused_ = 0; miss_mark.id = mark_id.val; dev_flow = flow_drv_prepare(dev, flow, &miss_attr, miss_items, miss_actions, flow_idx, error); if (!dev_flow) return -rte_errno; dev_flow->flow = flow; dev_flow->external = true; dev_flow->tunnel = tunnel; /* Subflow object was created, we must include one in the list. */ SILIST_INSERT(&flow->dev_handles, dev_flow->handle_idx, dev_flow->handle, next); DRV_LOG(DEBUG, "port %u tunnel type=%d id=%u miss rule priority=%u group=%u", dev->data->port_id, tunnel->app_tunnel.type, tunnel->tunnel_id, miss_attr.priority, miss_attr.group); ret = flow_drv_translate(dev, dev_flow, &miss_attr, miss_items, miss_actions, error); if (!ret) ret = flow_mreg_update_copy_table(dev, flow, miss_actions, error); return ret; } static const struct mlx5_flow_tbl_data_entry * tunnel_mark_decode(struct rte_eth_dev *dev, uint32_t mark) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_dev_ctx_shared *sh = priv->sh; struct mlx5_hlist_entry *he; union tunnel_offload_mark mbits = { .val = mark }; union mlx5_flow_tbl_key table_key = { { .table_id = tunnel_id_to_flow_tbl(mbits.table_id), .dummy = 0, .domain = !!mbits.transfer, .direction = 0, } }; he = mlx5_hlist_lookup(sh->flow_tbls, table_key.v64, NULL); return he ? container_of(he, struct mlx5_flow_tbl_data_entry, entry) : NULL; } static void mlx5_flow_tunnel_grp2tbl_remove_cb(struct mlx5_hlist *list, struct mlx5_hlist_entry *entry) { struct mlx5_dev_ctx_shared *sh = list->ctx; struct tunnel_tbl_entry *tte = container_of(entry, typeof(*tte), hash); mlx5_ipool_free(sh->ipool[MLX5_IPOOL_TNL_TBL_ID], tunnel_flow_tbl_to_id(tte->flow_table)); mlx5_free(tte); } static int mlx5_flow_tunnel_grp2tbl_match_cb(struct mlx5_hlist *list __rte_unused, struct mlx5_hlist_entry *entry, uint64_t key, void *cb_ctx __rte_unused) { union tunnel_tbl_key tbl = { .val = key, }; struct tunnel_tbl_entry *tte = container_of(entry, typeof(*tte), hash); return tbl.tunnel_id != tte->tunnel_id || tbl.group != tte->group; } static struct mlx5_hlist_entry * mlx5_flow_tunnel_grp2tbl_create_cb(struct mlx5_hlist *list, uint64_t key, void *ctx __rte_unused) { struct mlx5_dev_ctx_shared *sh = list->ctx; struct tunnel_tbl_entry *tte; union tunnel_tbl_key tbl = { .val = key, }; tte = mlx5_malloc(MLX5_MEM_SYS | MLX5_MEM_ZERO, sizeof(*tte), 0, SOCKET_ID_ANY); if (!tte) goto err; mlx5_ipool_malloc(sh->ipool[MLX5_IPOOL_TNL_TBL_ID], &tte->flow_table); if (tte->flow_table >= MLX5_MAX_TABLES) { DRV_LOG(ERR, "Tunnel TBL ID %d exceed max limit.", tte->flow_table); mlx5_ipool_free(sh->ipool[MLX5_IPOOL_TNL_TBL_ID], tte->flow_table); goto err; } else if (!tte->flow_table) { goto err; } tte->flow_table = tunnel_id_to_flow_tbl(tte->flow_table); tte->tunnel_id = tbl.tunnel_id; tte->group = tbl.group; return &tte->hash; err: if (tte) mlx5_free(tte); return NULL; } static uint32_t tunnel_flow_group_to_flow_table(struct rte_eth_dev *dev, const struct mlx5_flow_tunnel *tunnel, uint32_t group, uint32_t *table, struct rte_flow_error *error) { struct mlx5_hlist_entry *he; struct tunnel_tbl_entry *tte; union tunnel_tbl_key key = { .tunnel_id = tunnel ? tunnel->tunnel_id : 0, .group = group }; struct mlx5_flow_tunnel_hub *thub = mlx5_tunnel_hub(dev); struct mlx5_hlist *group_hash; group_hash = tunnel ? tunnel->groups : thub->groups; he = mlx5_hlist_register(group_hash, key.val, NULL); if (!he) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ATTR_GROUP, NULL, "tunnel group index not supported"); tte = container_of(he, typeof(*tte), hash); *table = tte->flow_table; DRV_LOG(DEBUG, "port %u tunnel %u group=%#x table=%#x", dev->data->port_id, key.tunnel_id, group, *table); return 0; } static void mlx5_flow_tunnel_free(struct rte_eth_dev *dev, struct mlx5_flow_tunnel *tunnel) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_indexed_pool *ipool; DRV_LOG(DEBUG, "port %u release pmd tunnel id=0x%x", dev->data->port_id, tunnel->tunnel_id); LIST_REMOVE(tunnel, chain); mlx5_hlist_destroy(tunnel->groups); ipool = priv->sh->ipool[MLX5_IPOOL_TUNNEL_ID]; mlx5_ipool_free(ipool, tunnel->tunnel_id); } static bool mlx5_access_tunnel_offload_db (struct rte_eth_dev *dev, bool (*match)(struct rte_eth_dev *, struct mlx5_flow_tunnel *, const void *), void (*hit)(struct rte_eth_dev *, struct mlx5_flow_tunnel *, void *), void (*miss)(struct rte_eth_dev *, void *), void *ctx, bool lock_op) { bool verdict = false; struct mlx5_flow_tunnel_hub *thub = mlx5_tunnel_hub(dev); struct mlx5_flow_tunnel *tunnel; rte_spinlock_lock(&thub->sl); LIST_FOREACH(tunnel, &thub->tunnels, chain) { verdict = match(dev, tunnel, (const void *)ctx); if (verdict) break; } if (!lock_op) rte_spinlock_unlock(&thub->sl); if (verdict && hit) hit(dev, tunnel, ctx); if (!verdict && miss) miss(dev, ctx); if (lock_op) rte_spinlock_unlock(&thub->sl); return verdict; } struct tunnel_db_find_tunnel_id_ctx { uint32_t tunnel_id; struct mlx5_flow_tunnel *tunnel; }; static bool find_tunnel_id_match(struct rte_eth_dev *dev, struct mlx5_flow_tunnel *tunnel, const void *x) { const struct tunnel_db_find_tunnel_id_ctx *ctx = x; RTE_SET_USED(dev); return tunnel->tunnel_id == ctx->tunnel_id; } static void find_tunnel_id_hit(struct rte_eth_dev *dev, struct mlx5_flow_tunnel *tunnel, void *x) { struct tunnel_db_find_tunnel_id_ctx *ctx = x; RTE_SET_USED(dev); ctx->tunnel = tunnel; } static struct mlx5_flow_tunnel * mlx5_find_tunnel_id(struct rte_eth_dev *dev, uint32_t id) { struct tunnel_db_find_tunnel_id_ctx ctx = { .tunnel_id = id, }; mlx5_access_tunnel_offload_db(dev, find_tunnel_id_match, find_tunnel_id_hit, NULL, &ctx, true); return ctx.tunnel; } static struct mlx5_flow_tunnel * mlx5_flow_tunnel_allocate(struct rte_eth_dev *dev, const struct rte_flow_tunnel *app_tunnel) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_indexed_pool *ipool; struct mlx5_flow_tunnel *tunnel; uint32_t id; ipool = priv->sh->ipool[MLX5_IPOOL_TUNNEL_ID]; tunnel = mlx5_ipool_zmalloc(ipool, &id); if (!tunnel) return NULL; if (id >= MLX5_MAX_TUNNELS) { mlx5_ipool_free(ipool, id); DRV_LOG(ERR, "Tunnel ID %d exceed max limit.", id); return NULL; } tunnel->groups = mlx5_hlist_create("tunnel groups", 1024, 0, 0, mlx5_flow_tunnel_grp2tbl_create_cb, mlx5_flow_tunnel_grp2tbl_match_cb, mlx5_flow_tunnel_grp2tbl_remove_cb); if (!tunnel->groups) { mlx5_ipool_free(ipool, id); return NULL; } tunnel->groups->ctx = priv->sh; /* initiate new PMD tunnel */ memcpy(&tunnel->app_tunnel, app_tunnel, sizeof(*app_tunnel)); tunnel->tunnel_id = id; tunnel->action.type = (typeof(tunnel->action.type)) MLX5_RTE_FLOW_ACTION_TYPE_TUNNEL_SET; tunnel->action.conf = tunnel; tunnel->item.type = (typeof(tunnel->item.type)) MLX5_RTE_FLOW_ITEM_TYPE_TUNNEL; tunnel->item.spec = tunnel; tunnel->item.last = NULL; tunnel->item.mask = NULL; DRV_LOG(DEBUG, "port %u new pmd tunnel id=0x%x", dev->data->port_id, tunnel->tunnel_id); return tunnel; } struct tunnel_db_get_tunnel_ctx { const struct rte_flow_tunnel *app_tunnel; struct mlx5_flow_tunnel *tunnel; }; static bool get_tunnel_match(struct rte_eth_dev *dev, struct mlx5_flow_tunnel *tunnel, const void *x) { const struct tunnel_db_get_tunnel_ctx *ctx = x; RTE_SET_USED(dev); return !memcmp(ctx->app_tunnel, &tunnel->app_tunnel, sizeof(*ctx->app_tunnel)); } static void get_tunnel_hit(struct rte_eth_dev *dev, struct mlx5_flow_tunnel *tunnel, void *x) { /* called under tunnel spinlock protection */ struct tunnel_db_get_tunnel_ctx *ctx = x; RTE_SET_USED(dev); tunnel->refctn++; ctx->tunnel = tunnel; } static void get_tunnel_miss(struct rte_eth_dev *dev, void *x) { /* called under tunnel spinlock protection */ struct mlx5_flow_tunnel_hub *thub = mlx5_tunnel_hub(dev); struct tunnel_db_get_tunnel_ctx *ctx = x; rte_spinlock_unlock(&thub->sl); ctx->tunnel = mlx5_flow_tunnel_allocate(dev, ctx->app_tunnel); ctx->tunnel->refctn = 1; rte_spinlock_lock(&thub->sl); if (ctx->tunnel) LIST_INSERT_HEAD(&thub->tunnels, ctx->tunnel, chain); } static int mlx5_get_flow_tunnel(struct rte_eth_dev *dev, const struct rte_flow_tunnel *app_tunnel, struct mlx5_flow_tunnel **tunnel) { struct tunnel_db_get_tunnel_ctx ctx = { .app_tunnel = app_tunnel, }; mlx5_access_tunnel_offload_db(dev, get_tunnel_match, get_tunnel_hit, get_tunnel_miss, &ctx, true); *tunnel = ctx.tunnel; return ctx.tunnel ? 0 : -ENOMEM; } void mlx5_release_tunnel_hub(struct mlx5_dev_ctx_shared *sh, uint16_t port_id) { struct mlx5_flow_tunnel_hub *thub = sh->tunnel_hub; if (!thub) return; if (!LIST_EMPTY(&thub->tunnels)) DRV_LOG(WARNING, "port %u tunnels present\n", port_id); mlx5_hlist_destroy(thub->groups); mlx5_free(thub); } int mlx5_alloc_tunnel_hub(struct mlx5_dev_ctx_shared *sh) { int err; struct mlx5_flow_tunnel_hub *thub; thub = mlx5_malloc(MLX5_MEM_SYS | MLX5_MEM_ZERO, sizeof(*thub), 0, SOCKET_ID_ANY); if (!thub) return -ENOMEM; LIST_INIT(&thub->tunnels); rte_spinlock_init(&thub->sl); thub->groups = mlx5_hlist_create("flow groups", rte_align32pow2(MLX5_MAX_TABLES), 0, 0, mlx5_flow_tunnel_grp2tbl_create_cb, mlx5_flow_tunnel_grp2tbl_match_cb, mlx5_flow_tunnel_grp2tbl_remove_cb); if (!thub->groups) { err = -rte_errno; goto err; } thub->groups->ctx = sh; sh->tunnel_hub = thub; return 0; err: if (thub->groups) mlx5_hlist_destroy(thub->groups); if (thub) mlx5_free(thub); return err; } static inline bool mlx5_flow_tunnel_validate(struct rte_eth_dev *dev, struct rte_flow_tunnel *tunnel, const char *err_msg) { err_msg = NULL; if (!is_tunnel_offload_active(dev)) { err_msg = "tunnel offload was not activated"; goto out; } else if (!tunnel) { err_msg = "no application tunnel"; goto out; } switch (tunnel->type) { default: err_msg = "unsupported tunnel type"; goto out; case RTE_FLOW_ITEM_TYPE_VXLAN: break; } out: return !err_msg; } static int mlx5_flow_tunnel_decap_set(struct rte_eth_dev *dev, struct rte_flow_tunnel *app_tunnel, struct rte_flow_action **actions, uint32_t *num_of_actions, struct rte_flow_error *error) { int ret; struct mlx5_flow_tunnel *tunnel; const char *err_msg = NULL; bool verdict = mlx5_flow_tunnel_validate(dev, app_tunnel, err_msg); if (!verdict) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL, err_msg); ret = mlx5_get_flow_tunnel(dev, app_tunnel, &tunnel); if (ret < 0) { return rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_ACTION_CONF, NULL, "failed to initialize pmd tunnel"); } *actions = &tunnel->action; *num_of_actions = 1; return 0; } static int mlx5_flow_tunnel_match(struct rte_eth_dev *dev, struct rte_flow_tunnel *app_tunnel, struct rte_flow_item **items, uint32_t *num_of_items, struct rte_flow_error *error) { int ret; struct mlx5_flow_tunnel *tunnel; const char *err_msg = NULL; bool verdict = mlx5_flow_tunnel_validate(dev, app_tunnel, err_msg); if (!verdict) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_HANDLE, NULL, err_msg); ret = mlx5_get_flow_tunnel(dev, app_tunnel, &tunnel); if (ret < 0) { return rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_HANDLE, NULL, "failed to initialize pmd tunnel"); } *items = &tunnel->item; *num_of_items = 1; return 0; } struct tunnel_db_element_release_ctx { struct rte_flow_item *items; struct rte_flow_action *actions; uint32_t num_elements; struct rte_flow_error *error; int ret; }; static bool tunnel_element_release_match(struct rte_eth_dev *dev, struct mlx5_flow_tunnel *tunnel, const void *x) { const struct tunnel_db_element_release_ctx *ctx = x; RTE_SET_USED(dev); if (ctx->num_elements != 1) return false; else if (ctx->items) return ctx->items == &tunnel->item; else if (ctx->actions) return ctx->actions == &tunnel->action; return false; } static void tunnel_element_release_hit(struct rte_eth_dev *dev, struct mlx5_flow_tunnel *tunnel, void *x) { struct tunnel_db_element_release_ctx *ctx = x; ctx->ret = 0; if (!__atomic_sub_fetch(&tunnel->refctn, 1, __ATOMIC_RELAXED)) mlx5_flow_tunnel_free(dev, tunnel); } static void tunnel_element_release_miss(struct rte_eth_dev *dev, void *x) { struct tunnel_db_element_release_ctx *ctx = x; RTE_SET_USED(dev); ctx->ret = rte_flow_error_set(ctx->error, EINVAL, RTE_FLOW_ERROR_TYPE_HANDLE, NULL, "invalid argument"); } static int mlx5_flow_tunnel_item_release(struct rte_eth_dev *dev, struct rte_flow_item *pmd_items, uint32_t num_items, struct rte_flow_error *err) { struct tunnel_db_element_release_ctx ctx = { .items = pmd_items, .actions = NULL, .num_elements = num_items, .error = err, }; mlx5_access_tunnel_offload_db(dev, tunnel_element_release_match, tunnel_element_release_hit, tunnel_element_release_miss, &ctx, false); return ctx.ret; } static int mlx5_flow_tunnel_action_release(struct rte_eth_dev *dev, struct rte_flow_action *pmd_actions, uint32_t num_actions, struct rte_flow_error *err) { struct tunnel_db_element_release_ctx ctx = { .items = NULL, .actions = pmd_actions, .num_elements = num_actions, .error = err, }; mlx5_access_tunnel_offload_db(dev, tunnel_element_release_match, tunnel_element_release_hit, tunnel_element_release_miss, &ctx, false); return ctx.ret; } static int mlx5_flow_tunnel_get_restore_info(struct rte_eth_dev *dev, struct rte_mbuf *m, struct rte_flow_restore_info *info, struct rte_flow_error *err) { uint64_t ol_flags = m->ol_flags; const struct mlx5_flow_tbl_data_entry *tble; const uint64_t mask = PKT_RX_FDIR | PKT_RX_FDIR_ID; if (!is_tunnel_offload_active(dev)) { info->flags = 0; return 0; } if ((ol_flags & mask) != mask) goto err; tble = tunnel_mark_decode(dev, m->hash.fdir.hi); if (!tble) { DRV_LOG(DEBUG, "port %u invalid miss tunnel mark %#x", dev->data->port_id, m->hash.fdir.hi); goto err; } MLX5_ASSERT(tble->tunnel); memcpy(&info->tunnel, &tble->tunnel->app_tunnel, sizeof(info->tunnel)); info->group_id = tble->group_id; info->flags = RTE_FLOW_RESTORE_INFO_TUNNEL | RTE_FLOW_RESTORE_INFO_GROUP_ID | RTE_FLOW_RESTORE_INFO_ENCAPSULATED; return 0; err: return rte_flow_error_set(err, EINVAL, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, "failed to get restore info"); } #else /* HAVE_IBV_FLOW_DV_SUPPORT */ static int mlx5_flow_tunnel_decap_set(__rte_unused struct rte_eth_dev *dev, __rte_unused struct rte_flow_tunnel *app_tunnel, __rte_unused struct rte_flow_action **actions, __rte_unused uint32_t *num_of_actions, __rte_unused struct rte_flow_error *error) { return -ENOTSUP; } static int mlx5_flow_tunnel_match(__rte_unused struct rte_eth_dev *dev, __rte_unused struct rte_flow_tunnel *app_tunnel, __rte_unused struct rte_flow_item **items, __rte_unused uint32_t *num_of_items, __rte_unused struct rte_flow_error *error) { return -ENOTSUP; } static int mlx5_flow_tunnel_item_release(__rte_unused struct rte_eth_dev *dev, __rte_unused struct rte_flow_item *pmd_items, __rte_unused uint32_t num_items, __rte_unused struct rte_flow_error *err) { return -ENOTSUP; } static int mlx5_flow_tunnel_action_release(__rte_unused struct rte_eth_dev *dev, __rte_unused struct rte_flow_action *pmd_action, __rte_unused uint32_t num_actions, __rte_unused struct rte_flow_error *err) { return -ENOTSUP; } static int mlx5_flow_tunnel_get_restore_info(__rte_unused struct rte_eth_dev *dev, __rte_unused struct rte_mbuf *m, __rte_unused struct rte_flow_restore_info *i, __rte_unused struct rte_flow_error *err) { return -ENOTSUP; } static int flow_tunnel_add_default_miss(__rte_unused struct rte_eth_dev *dev, __rte_unused struct rte_flow *flow, __rte_unused const struct rte_flow_attr *attr, __rte_unused const struct rte_flow_action *actions, __rte_unused uint32_t flow_idx, __rte_unused struct tunnel_default_miss_ctx *ctx, __rte_unused struct rte_flow_error *error) { return -ENOTSUP; } static struct mlx5_flow_tunnel * mlx5_find_tunnel_id(__rte_unused struct rte_eth_dev *dev, __rte_unused uint32_t id) { return NULL; } static void mlx5_flow_tunnel_free(__rte_unused struct rte_eth_dev *dev, __rte_unused struct mlx5_flow_tunnel *tunnel) { } static uint32_t tunnel_flow_group_to_flow_table(__rte_unused struct rte_eth_dev *dev, __rte_unused const struct mlx5_flow_tunnel *t, __rte_unused uint32_t group, __rte_unused uint32_t *table, struct rte_flow_error *error) { return rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, "tunnel offload requires DV support"); } void mlx5_release_tunnel_hub(__rte_unused struct mlx5_dev_ctx_shared *sh, __rte_unused uint16_t port_id) { } #endif /* HAVE_IBV_FLOW_DV_SUPPORT */