/* SPDX-License-Identifier: BSD-3-Clause * Copyright 2016 6WIND S.A. * Copyright 2016 Mellanox Technologies, Ltd */ #include #include #include /* Verbs header. */ /* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */ #ifdef PEDANTIC #pragma GCC diagnostic ignored "-Wpedantic" #endif #include #ifdef PEDANTIC #pragma GCC diagnostic error "-Wpedantic" #endif #include #include #include #include #include #include #include #include #include "mlx5.h" #include "mlx5_defs.h" #include "mlx5_prm.h" #include "mlx5_glue.h" /* Flow priority for control plane flows. */ #define MLX5_CTRL_FLOW_PRIORITY 1 /* Internet Protocol versions. */ #define MLX5_IPV4 4 #define MLX5_IPV6 6 #define MLX5_GRE 47 #ifndef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT struct ibv_flow_spec_counter_action { int dummy; }; #endif /* Dev ops structure defined in mlx5.c */ extern const struct eth_dev_ops mlx5_dev_ops; extern const struct eth_dev_ops mlx5_dev_ops_isolate; /** Structure give to the conversion functions. */ struct mlx5_flow_data { struct rte_eth_dev *dev; /** Ethernet device. */ struct mlx5_flow_parse *parser; /** Parser context. */ struct rte_flow_error *error; /** Error context. */ }; static int mlx5_flow_create_eth(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data); static int mlx5_flow_create_vlan(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data); static int mlx5_flow_create_ipv4(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data); static int mlx5_flow_create_ipv6(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data); static int mlx5_flow_create_udp(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data); static int mlx5_flow_create_tcp(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data); static int mlx5_flow_create_vxlan(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data); static int mlx5_flow_create_vxlan_gpe(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data); static int mlx5_flow_create_gre(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data); static int mlx5_flow_create_mpls(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data); struct mlx5_flow_parse; static void mlx5_flow_create_copy(struct mlx5_flow_parse *parser, void *src, unsigned int size); static int mlx5_flow_create_flag_mark(struct mlx5_flow_parse *parser, uint32_t mark_id); static int mlx5_flow_create_count(struct rte_eth_dev *dev, struct mlx5_flow_parse *parser); /* Hash RX queue types. */ enum hash_rxq_type { HASH_RXQ_TCPV4, HASH_RXQ_UDPV4, HASH_RXQ_IPV4, HASH_RXQ_TCPV6, HASH_RXQ_UDPV6, HASH_RXQ_IPV6, HASH_RXQ_ETH, HASH_RXQ_TUNNEL, }; /* Initialization data for hash RX queue. */ struct hash_rxq_init { uint64_t hash_fields; /* Fields that participate in the hash. */ uint64_t dpdk_rss_hf; /* Matching DPDK RSS hash fields. */ unsigned int flow_priority; /* Flow priority to use. */ unsigned int ip_version; /* Internet protocol. */ }; /* Initialization data for hash RX queues. */ const struct hash_rxq_init hash_rxq_init[] = { [HASH_RXQ_TCPV4] = { .hash_fields = (IBV_RX_HASH_SRC_IPV4 | IBV_RX_HASH_DST_IPV4 | IBV_RX_HASH_SRC_PORT_TCP | IBV_RX_HASH_DST_PORT_TCP), .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV4_TCP, .flow_priority = 0, .ip_version = MLX5_IPV4, }, [HASH_RXQ_UDPV4] = { .hash_fields = (IBV_RX_HASH_SRC_IPV4 | IBV_RX_HASH_DST_IPV4 | IBV_RX_HASH_SRC_PORT_UDP | IBV_RX_HASH_DST_PORT_UDP), .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV4_UDP, .flow_priority = 0, .ip_version = MLX5_IPV4, }, [HASH_RXQ_IPV4] = { .hash_fields = (IBV_RX_HASH_SRC_IPV4 | IBV_RX_HASH_DST_IPV4), .dpdk_rss_hf = (ETH_RSS_IPV4 | ETH_RSS_FRAG_IPV4), .flow_priority = 1, .ip_version = MLX5_IPV4, }, [HASH_RXQ_TCPV6] = { .hash_fields = (IBV_RX_HASH_SRC_IPV6 | IBV_RX_HASH_DST_IPV6 | IBV_RX_HASH_SRC_PORT_TCP | IBV_RX_HASH_DST_PORT_TCP), .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV6_TCP, .flow_priority = 0, .ip_version = MLX5_IPV6, }, [HASH_RXQ_UDPV6] = { .hash_fields = (IBV_RX_HASH_SRC_IPV6 | IBV_RX_HASH_DST_IPV6 | IBV_RX_HASH_SRC_PORT_UDP | IBV_RX_HASH_DST_PORT_UDP), .dpdk_rss_hf = ETH_RSS_NONFRAG_IPV6_UDP, .flow_priority = 0, .ip_version = MLX5_IPV6, }, [HASH_RXQ_IPV6] = { .hash_fields = (IBV_RX_HASH_SRC_IPV6 | IBV_RX_HASH_DST_IPV6), .dpdk_rss_hf = (ETH_RSS_IPV6 | ETH_RSS_FRAG_IPV6), .flow_priority = 1, .ip_version = MLX5_IPV6, }, [HASH_RXQ_ETH] = { .hash_fields = 0, .dpdk_rss_hf = 0, .flow_priority = 2, }, }; /* Number of entries in hash_rxq_init[]. */ const unsigned int hash_rxq_init_n = RTE_DIM(hash_rxq_init); /** Structure for holding counter stats. */ struct mlx5_flow_counter_stats { uint64_t hits; /**< Number of packets matched by the rule. */ uint64_t bytes; /**< Number of bytes matched by the rule. */ }; /** Structure for Drop queue. */ struct mlx5_hrxq_drop { struct ibv_rwq_ind_table *ind_table; /**< Indirection table. */ struct ibv_qp *qp; /**< Verbs queue pair. */ struct ibv_wq *wq; /**< Verbs work queue. */ struct ibv_cq *cq; /**< Verbs completion queue. */ }; /* Flows structures. */ struct mlx5_flow { uint64_t hash_fields; /**< Fields that participate in the hash. */ struct ibv_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */ struct ibv_flow *ibv_flow; /**< Verbs flow. */ struct mlx5_hrxq *hrxq; /**< Hash Rx queues. */ }; /* Drop flows structures. */ struct mlx5_flow_drop { struct ibv_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */ struct ibv_flow *ibv_flow; /**< Verbs flow. */ }; struct rte_flow { TAILQ_ENTRY(rte_flow) next; /**< Pointer to the next flow structure. */ uint32_t mark:1; /**< Set if the flow is marked. */ uint32_t drop:1; /**< Drop queue. */ struct rte_flow_action_rss rss_conf; /**< RSS configuration */ uint16_t (*queues)[]; /**< Queues indexes to use. */ uint8_t rss_key[40]; /**< copy of the RSS key. */ uint32_t tunnel; /**< Tunnel type of RTE_PTYPE_TUNNEL_XXX. */ struct ibv_counter_set *cs; /**< Holds the counters for the rule. */ struct mlx5_flow_counter_stats counter_stats;/**> 12) const uint32_t ptype_ext[] = { [PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN)] = RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_L4_UDP, [PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN_GPE)] = RTE_PTYPE_TUNNEL_VXLAN_GPE | RTE_PTYPE_L4_UDP, [PTYPE_IDX(RTE_PTYPE_TUNNEL_GRE)] = RTE_PTYPE_TUNNEL_GRE, [PTYPE_IDX(RTE_PTYPE_TUNNEL_MPLS_IN_GRE)] = RTE_PTYPE_TUNNEL_MPLS_IN_GRE, [PTYPE_IDX(RTE_PTYPE_TUNNEL_MPLS_IN_UDP)] = RTE_PTYPE_TUNNEL_MPLS_IN_GRE | RTE_PTYPE_L4_UDP, }; /** Structure to generate a simple graph of layers supported by the NIC. */ struct mlx5_flow_items { /** List of possible actions for these items. */ const enum rte_flow_action_type *const actions; /** Bit-masks corresponding to the possibilities for the item. */ const void *mask; /** * Default bit-masks to use when item->mask is not provided. When * \default_mask is also NULL, the full supported bit-mask (\mask) is * used instead. */ const void *default_mask; /** Bit-masks size in bytes. */ const unsigned int mask_sz; /** * Conversion function from rte_flow to NIC specific flow. * * @param item * rte_flow item to convert. * @param default_mask * Default bit-masks to use when item->mask is not provided. * @param data * Internal structure to store the conversion. * * @return * 0 on success, a negative errno value otherwise and rte_errno is * set. */ int (*convert)(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data); /** Size in bytes of the destination structure. */ const unsigned int dst_sz; /** List of possible following items. */ const enum rte_flow_item_type *const items; }; /** Valid action for this PMD. */ static const enum rte_flow_action_type valid_actions[] = { RTE_FLOW_ACTION_TYPE_DROP, RTE_FLOW_ACTION_TYPE_QUEUE, RTE_FLOW_ACTION_TYPE_MARK, RTE_FLOW_ACTION_TYPE_FLAG, #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT RTE_FLOW_ACTION_TYPE_COUNT, #endif RTE_FLOW_ACTION_TYPE_END, }; /** Graph of supported items and associated actions. */ static const struct mlx5_flow_items mlx5_flow_items[] = { [RTE_FLOW_ITEM_TYPE_END] = { .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH, RTE_FLOW_ITEM_TYPE_VXLAN, RTE_FLOW_ITEM_TYPE_VXLAN_GPE, RTE_FLOW_ITEM_TYPE_GRE), }, [RTE_FLOW_ITEM_TYPE_ETH] = { .items = ITEMS(RTE_FLOW_ITEM_TYPE_VLAN, RTE_FLOW_ITEM_TYPE_IPV4, RTE_FLOW_ITEM_TYPE_IPV6), .actions = valid_actions, .mask = &(const struct rte_flow_item_eth){ .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff", .src.addr_bytes = "\xff\xff\xff\xff\xff\xff", .type = -1, }, .default_mask = &rte_flow_item_eth_mask, .mask_sz = sizeof(struct rte_flow_item_eth), .convert = mlx5_flow_create_eth, .dst_sz = sizeof(struct ibv_flow_spec_eth), }, [RTE_FLOW_ITEM_TYPE_VLAN] = { .items = ITEMS(RTE_FLOW_ITEM_TYPE_IPV4, RTE_FLOW_ITEM_TYPE_IPV6), .actions = valid_actions, .mask = &(const struct rte_flow_item_vlan){ .tci = -1, .inner_type = -1, }, .default_mask = &rte_flow_item_vlan_mask, .mask_sz = sizeof(struct rte_flow_item_vlan), .convert = mlx5_flow_create_vlan, .dst_sz = 0, }, [RTE_FLOW_ITEM_TYPE_IPV4] = { .items = ITEMS(RTE_FLOW_ITEM_TYPE_UDP, RTE_FLOW_ITEM_TYPE_TCP, RTE_FLOW_ITEM_TYPE_GRE), .actions = valid_actions, .mask = &(const struct rte_flow_item_ipv4){ .hdr = { .src_addr = -1, .dst_addr = -1, .type_of_service = -1, .next_proto_id = -1, }, }, .default_mask = &rte_flow_item_ipv4_mask, .mask_sz = sizeof(struct rte_flow_item_ipv4), .convert = mlx5_flow_create_ipv4, .dst_sz = sizeof(struct ibv_flow_spec_ipv4_ext), }, [RTE_FLOW_ITEM_TYPE_IPV6] = { .items = ITEMS(RTE_FLOW_ITEM_TYPE_UDP, RTE_FLOW_ITEM_TYPE_TCP, RTE_FLOW_ITEM_TYPE_GRE), .actions = valid_actions, .mask = &(const struct rte_flow_item_ipv6){ .hdr = { .src_addr = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, }, .dst_addr = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, }, .vtc_flow = -1, .proto = -1, .hop_limits = -1, }, }, .default_mask = &rte_flow_item_ipv6_mask, .mask_sz = sizeof(struct rte_flow_item_ipv6), .convert = mlx5_flow_create_ipv6, .dst_sz = sizeof(struct ibv_flow_spec_ipv6), }, [RTE_FLOW_ITEM_TYPE_UDP] = { .items = ITEMS(RTE_FLOW_ITEM_TYPE_VXLAN, RTE_FLOW_ITEM_TYPE_VXLAN_GPE, RTE_FLOW_ITEM_TYPE_MPLS), .actions = valid_actions, .mask = &(const struct rte_flow_item_udp){ .hdr = { .src_port = -1, .dst_port = -1, }, }, .default_mask = &rte_flow_item_udp_mask, .mask_sz = sizeof(struct rte_flow_item_udp), .convert = mlx5_flow_create_udp, .dst_sz = sizeof(struct ibv_flow_spec_tcp_udp), }, [RTE_FLOW_ITEM_TYPE_TCP] = { .actions = valid_actions, .mask = &(const struct rte_flow_item_tcp){ .hdr = { .src_port = -1, .dst_port = -1, }, }, .default_mask = &rte_flow_item_tcp_mask, .mask_sz = sizeof(struct rte_flow_item_tcp), .convert = mlx5_flow_create_tcp, .dst_sz = sizeof(struct ibv_flow_spec_tcp_udp), }, [RTE_FLOW_ITEM_TYPE_GRE] = { .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH, RTE_FLOW_ITEM_TYPE_IPV4, RTE_FLOW_ITEM_TYPE_IPV6, RTE_FLOW_ITEM_TYPE_MPLS), .actions = valid_actions, .mask = &(const struct rte_flow_item_gre){ .protocol = -1, }, .default_mask = &rte_flow_item_gre_mask, .mask_sz = sizeof(struct rte_flow_item_gre), .convert = mlx5_flow_create_gre, #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT .dst_sz = sizeof(struct ibv_flow_spec_gre), #else .dst_sz = sizeof(struct ibv_flow_spec_tunnel), #endif }, [RTE_FLOW_ITEM_TYPE_MPLS] = { .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH, RTE_FLOW_ITEM_TYPE_IPV4, RTE_FLOW_ITEM_TYPE_IPV6), .actions = valid_actions, .mask = &(const struct rte_flow_item_mpls){ .label_tc_s = "\xff\xff\xf0", }, .default_mask = &rte_flow_item_mpls_mask, .mask_sz = sizeof(struct rte_flow_item_mpls), .convert = mlx5_flow_create_mpls, #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT .dst_sz = sizeof(struct ibv_flow_spec_mpls), #endif }, [RTE_FLOW_ITEM_TYPE_VXLAN] = { .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH, RTE_FLOW_ITEM_TYPE_IPV4, /* For L3 VXLAN. */ RTE_FLOW_ITEM_TYPE_IPV6), /* For L3 VXLAN. */ .actions = valid_actions, .mask = &(const struct rte_flow_item_vxlan){ .vni = "\xff\xff\xff", }, .default_mask = &rte_flow_item_vxlan_mask, .mask_sz = sizeof(struct rte_flow_item_vxlan), .convert = mlx5_flow_create_vxlan, .dst_sz = sizeof(struct ibv_flow_spec_tunnel), }, [RTE_FLOW_ITEM_TYPE_VXLAN_GPE] = { .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH, RTE_FLOW_ITEM_TYPE_IPV4, RTE_FLOW_ITEM_TYPE_IPV6), .actions = valid_actions, .mask = &(const struct rte_flow_item_vxlan_gpe){ .vni = "\xff\xff\xff", }, .default_mask = &rte_flow_item_vxlan_gpe_mask, .mask_sz = sizeof(struct rte_flow_item_vxlan_gpe), .convert = mlx5_flow_create_vxlan_gpe, .dst_sz = sizeof(struct ibv_flow_spec_tunnel), }, }; /** Structure to pass to the conversion function. */ struct mlx5_flow_parse { uint32_t inner; /**< Verbs value, set once tunnel is encountered. */ uint32_t create:1; /**< Whether resources should remain after a validate. */ uint32_t drop:1; /**< Target is a drop queue. */ uint32_t mark:1; /**< Mark is present in the flow. */ uint32_t count:1; /**< Count is present in the flow. */ uint32_t mark_id; /**< Mark identifier. */ struct rte_flow_action_rss rss_conf; /**< RSS configuration */ uint16_t queues[RTE_MAX_QUEUES_PER_PORT]; /**< Queues indexes to use. */ uint8_t rss_key[40]; /**< copy of the RSS key. */ enum hash_rxq_type layer; /**< Last pattern layer detected. */ enum hash_rxq_type out_layer; /**< Last outer pattern layer detected. */ uint32_t tunnel; /**< Tunnel type of RTE_PTYPE_TUNNEL_XXX. */ struct ibv_counter_set *cs; /**< Holds the counter set for the rule */ struct { struct ibv_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */ unsigned int offset; /**< Current position or total size of the attribute. */ uint64_t hash_fields; /**< Verbs hash fields. */ } queue[RTE_DIM(hash_rxq_init)]; }; 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, #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT .query = mlx5_flow_query, #else .query = NULL, #endif .isolate = mlx5_flow_isolate, }; /* Convert FDIR request to Generic flow. */ struct mlx5_fdir { struct rte_flow_attr attr; struct rte_flow_action actions[2]; struct rte_flow_item items[4]; struct rte_flow_item_eth l2; struct rte_flow_item_eth l2_mask; union { struct rte_flow_item_ipv4 ipv4; struct rte_flow_item_ipv6 ipv6; } l3; union { struct rte_flow_item_ipv4 ipv4; struct rte_flow_item_ipv6 ipv6; } l3_mask; union { struct rte_flow_item_udp udp; struct rte_flow_item_tcp tcp; } l4; union { struct rte_flow_item_udp udp; struct rte_flow_item_tcp tcp; } l4_mask; struct rte_flow_action_queue queue; }; /* Verbs specification header. */ struct ibv_spec_header { enum ibv_flow_spec_type type; uint16_t size; }; /** * Check item is fully supported by the NIC matching capability. * * @param item[in] * Item specification. * @param mask[in] * Bit-masks covering supported fields to compare with spec, last and mask in * \item. * @param size * Bit-Mask size in bytes. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_item_validate(const struct rte_flow_item *item, const uint8_t *mask, unsigned int size) { unsigned int i; const uint8_t *spec = item->spec; const uint8_t *last = item->last; const uint8_t *m = item->mask ? item->mask : mask; if (!spec && (item->mask || last)) goto error; if (!spec) return 0; /* * Single-pass check to make sure that: * - item->mask is supported, no bits are set outside mask. * - Both masked item->spec and item->last are equal (no range * supported). */ for (i = 0; i < size; i++) { if (!m[i]) continue; if ((m[i] | mask[i]) != mask[i]) goto error; if (last && ((spec[i] & m[i]) != (last[i] & m[i]))) goto error; } return 0; error: rte_errno = ENOTSUP; return -rte_errno; } /** * Extract attribute to the parser. * * @param[in] attr * Flow rule attributes. * @param[out] error * Perform verbose error reporting if not NULL. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_convert_attributes(const struct rte_flow_attr *attr, struct rte_flow_error *error) { if (attr->group) { rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_GROUP, NULL, "groups are not supported"); return -rte_errno; } if (attr->priority && attr->priority != MLX5_CTRL_FLOW_PRIORITY) { rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY, NULL, "priorities are not supported"); return -rte_errno; } if (attr->egress) { rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_EGRESS, NULL, "egress is not supported"); return -rte_errno; } if (attr->transfer) { rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER, NULL, "transfer is not supported"); return -rte_errno; } if (!attr->ingress) { rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ATTR_INGRESS, NULL, "only ingress is supported"); return -rte_errno; } return 0; } /** * Extract actions request to the parser. * * @param dev * Pointer to Ethernet device. * @param[in] actions * Associated actions (list terminated by the END action). * @param[out] error * Perform verbose error reporting if not NULL. * @param[in, out] parser * Internal parser structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_convert_actions(struct rte_eth_dev *dev, const struct rte_flow_action actions[], struct rte_flow_error *error, struct mlx5_flow_parse *parser) { enum { FATE = 1, MARK = 2, COUNT = 4, }; uint32_t overlap = 0; struct priv *priv = dev->data->dev_private; for (; actions->type != RTE_FLOW_ACTION_TYPE_END; ++actions) { if (actions->type == RTE_FLOW_ACTION_TYPE_VOID) { continue; } else if (actions->type == RTE_FLOW_ACTION_TYPE_DROP) { if (overlap & FATE) goto exit_action_overlap; overlap |= FATE; parser->drop = 1; } else if (actions->type == RTE_FLOW_ACTION_TYPE_QUEUE) { const struct rte_flow_action_queue *queue = (const struct rte_flow_action_queue *) actions->conf; if (overlap & FATE) goto exit_action_overlap; overlap |= FATE; if (!queue || (queue->index > (priv->rxqs_n - 1))) goto exit_action_not_supported; parser->queues[0] = queue->index; parser->rss_conf = (struct rte_flow_action_rss){ .queue_num = 1, .queue = parser->queues, }; } else if (actions->type == RTE_FLOW_ACTION_TYPE_RSS) { const struct rte_flow_action_rss *rss = (const struct rte_flow_action_rss *) actions->conf; const uint8_t *rss_key; uint32_t rss_key_len; uint16_t n; if (overlap & FATE) goto exit_action_overlap; overlap |= FATE; if (rss->func && rss->func != RTE_ETH_HASH_FUNCTION_TOEPLITZ) { rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, actions, "the only supported RSS hash" " function is Toeplitz"); return -rte_errno; } #ifndef HAVE_IBV_DEVICE_TUNNEL_SUPPORT if (parser->rss_conf.level > 1) { rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, actions, "a nonzero RSS encapsulation" " level is not supported"); return -rte_errno; } #endif if (parser->rss_conf.level > 2) { rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, actions, "RSS encapsulation level" " > 1 is not supported"); return -rte_errno; } if (rss->types & MLX5_RSS_HF_MASK) { rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, actions, "unsupported RSS type" " requested"); return -rte_errno; } if (rss->key_len) { rss_key_len = rss->key_len; rss_key = rss->key; } else { rss_key_len = rss_hash_default_key_len; rss_key = rss_hash_default_key; } if (rss_key_len != RTE_DIM(parser->rss_key)) { rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, actions, "RSS hash key must be" " exactly 40 bytes long"); return -rte_errno; } if (!rss->queue_num) { rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, actions, "no valid queues"); return -rte_errno; } if (rss->queue_num > RTE_DIM(parser->queues)) { rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, actions, "too many queues for RSS" " context"); return -rte_errno; } for (n = 0; n < rss->queue_num; ++n) { if (rss->queue[n] >= priv->rxqs_n) { rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, actions, "queue id > number of" " queues"); return -rte_errno; } } parser->rss_conf = (struct rte_flow_action_rss){ .func = RTE_ETH_HASH_FUNCTION_DEFAULT, .level = rss->level ? rss->level : 1, .types = rss->types, .key_len = rss_key_len, .queue_num = rss->queue_num, .key = memcpy(parser->rss_key, rss_key, sizeof(*rss_key) * rss_key_len), .queue = memcpy(parser->queues, rss->queue, sizeof(*rss->queue) * rss->queue_num), }; } else if (actions->type == RTE_FLOW_ACTION_TYPE_MARK) { const struct rte_flow_action_mark *mark = (const struct rte_flow_action_mark *) actions->conf; if (overlap & MARK) goto exit_action_overlap; overlap |= MARK; if (!mark) { rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, actions, "mark must be defined"); return -rte_errno; } else if (mark->id >= MLX5_FLOW_MARK_MAX) { rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, actions, "mark must be between 0" " and 16777199"); return -rte_errno; } parser->mark = 1; parser->mark_id = mark->id; } else if (actions->type == RTE_FLOW_ACTION_TYPE_FLAG) { if (overlap & MARK) goto exit_action_overlap; overlap |= MARK; parser->mark = 1; } else if (actions->type == RTE_FLOW_ACTION_TYPE_COUNT && priv->config.flow_counter_en) { if (overlap & COUNT) goto exit_action_overlap; overlap |= COUNT; parser->count = 1; } else { goto exit_action_not_supported; } } /* When fate is unknown, drop traffic. */ if (!(overlap & FATE)) parser->drop = 1; if (parser->drop && parser->mark) parser->mark = 0; if (!parser->rss_conf.queue_num && !parser->drop) { rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_HANDLE, NULL, "no valid action"); return -rte_errno; } return 0; exit_action_not_supported: rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, actions, "action not supported"); return -rte_errno; exit_action_overlap: rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, actions, "overlapping actions are not supported"); return -rte_errno; } /** * Validate items. * * @param[in] items * Pattern specification (list terminated by the END pattern item). * @param[out] error * Perform verbose error reporting if not NULL. * @param[in, out] parser * Internal parser structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_convert_items_validate(struct rte_eth_dev *dev, const struct rte_flow_item items[], struct rte_flow_error *error, struct mlx5_flow_parse *parser) { struct priv *priv = dev->data->dev_private; const struct mlx5_flow_items *cur_item = mlx5_flow_items; unsigned int i; unsigned int last_voids = 0; int ret = 0; /* Initialise the offsets to start after verbs attribute. */ for (i = 0; i != hash_rxq_init_n; ++i) parser->queue[i].offset = sizeof(struct ibv_flow_attr); for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) { const struct mlx5_flow_items *token = NULL; unsigned int n; if (items->type == RTE_FLOW_ITEM_TYPE_VOID) { last_voids++; continue; } for (i = 0; cur_item->items && cur_item->items[i] != RTE_FLOW_ITEM_TYPE_END; ++i) { if (cur_item->items[i] == items->type) { token = &mlx5_flow_items[items->type]; break; } } if (!token) { ret = -ENOTSUP; goto exit_item_not_supported; } cur_item = token; ret = mlx5_flow_item_validate(items, (const uint8_t *)cur_item->mask, cur_item->mask_sz); if (ret) goto exit_item_not_supported; if (IS_TUNNEL(items->type)) { if (parser->tunnel && !((items - last_voids - 1)->type == RTE_FLOW_ITEM_TYPE_GRE && items->type == RTE_FLOW_ITEM_TYPE_MPLS)) { rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, items, "Cannot recognize multiple" " tunnel encapsulations."); return -rte_errno; } if (items->type == RTE_FLOW_ITEM_TYPE_MPLS && !priv->config.mpls_en) { rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, items, "MPLS not supported or" " disabled in firmware" " configuration."); return -rte_errno; } if (!priv->config.tunnel_en && parser->rss_conf.level > 1) { rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, items, "RSS on tunnel is not supported"); return -rte_errno; } parser->inner = IBV_FLOW_SPEC_INNER; parser->tunnel = flow_ptype[items->type]; } if (parser->drop) { parser->queue[HASH_RXQ_ETH].offset += cur_item->dst_sz; } else { for (n = 0; n != hash_rxq_init_n; ++n) parser->queue[n].offset += cur_item->dst_sz; } last_voids = 0; } if (parser->drop) { parser->queue[HASH_RXQ_ETH].offset += sizeof(struct ibv_flow_spec_action_drop); } if (parser->mark) { for (i = 0; i != hash_rxq_init_n; ++i) parser->queue[i].offset += sizeof(struct ibv_flow_spec_action_tag); } if (parser->count) { unsigned int size = sizeof(struct ibv_flow_spec_counter_action); for (i = 0; i != hash_rxq_init_n; ++i) parser->queue[i].offset += size; } return 0; exit_item_not_supported: return rte_flow_error_set(error, -ret, RTE_FLOW_ERROR_TYPE_ITEM, items, "item not supported"); } /** * Allocate memory space to store verbs flow attributes. * * @param[in] size * Amount of byte to allocate. * @param[out] error * Perform verbose error reporting if not NULL. * * @return * A verbs flow attribute on success, NULL otherwise and rte_errno is set. */ static struct ibv_flow_attr * mlx5_flow_convert_allocate(unsigned int size, struct rte_flow_error *error) { struct ibv_flow_attr *ibv_attr; ibv_attr = rte_calloc(__func__, 1, size, 0); if (!ibv_attr) { rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, "cannot allocate verbs spec attributes"); return NULL; } return ibv_attr; } /** * Make inner packet matching with an higher priority from the non Inner * matching. * * @param dev * Pointer to Ethernet device. * @param[in, out] parser * Internal parser structure. * @param attr * User flow attribute. */ static void mlx5_flow_update_priority(struct rte_eth_dev *dev, struct mlx5_flow_parse *parser, const struct rte_flow_attr *attr) { struct priv *priv = dev->data->dev_private; unsigned int i; uint16_t priority; /* 8 priorities >= 16 priorities * Control flow: 4-7 8-15 * User normal flow: 1-3 4-7 * User tunnel flow: 0-2 0-3 */ priority = attr->priority * MLX5_VERBS_FLOW_PRIO_8; if (priv->config.max_verbs_prio == MLX5_VERBS_FLOW_PRIO_8) priority /= 2; /* * Lower non-tunnel flow Verbs priority 1 if only support 8 Verbs * priorities, lower 4 otherwise. */ if (!parser->inner) { if (priv->config.max_verbs_prio == MLX5_VERBS_FLOW_PRIO_8) priority += 1; else priority += MLX5_VERBS_FLOW_PRIO_8 / 2; } if (parser->drop) { parser->queue[HASH_RXQ_ETH].ibv_attr->priority = priority + hash_rxq_init[HASH_RXQ_ETH].flow_priority; return; } for (i = 0; i != hash_rxq_init_n; ++i) { if (!parser->queue[i].ibv_attr) continue; parser->queue[i].ibv_attr->priority = priority + hash_rxq_init[i].flow_priority; } } /** * Finalise verbs flow attributes. * * @param[in, out] parser * Internal parser structure. */ static void mlx5_flow_convert_finalise(struct mlx5_flow_parse *parser) { unsigned int i; uint32_t inner = parser->inner; /* Don't create extra flows for outer RSS. */ if (parser->tunnel && parser->rss_conf.level < 2) return; /* * Fill missing layers in verbs specifications, or compute the correct * offset to allocate the memory space for the attributes and * specifications. */ for (i = 0; i != hash_rxq_init_n - 1; ++i) { union { struct ibv_flow_spec_ipv4_ext ipv4; struct ibv_flow_spec_ipv6 ipv6; struct ibv_flow_spec_tcp_udp udp_tcp; struct ibv_flow_spec_eth eth; } specs; void *dst; uint16_t size; if (i == parser->layer) continue; if (parser->layer == HASH_RXQ_ETH || parser->layer == HASH_RXQ_TUNNEL) { if (hash_rxq_init[i].ip_version == MLX5_IPV4) { size = sizeof(struct ibv_flow_spec_ipv4_ext); specs.ipv4 = (struct ibv_flow_spec_ipv4_ext){ .type = inner | IBV_FLOW_SPEC_IPV4_EXT, .size = size, }; } else { size = sizeof(struct ibv_flow_spec_ipv6); specs.ipv6 = (struct ibv_flow_spec_ipv6){ .type = inner | IBV_FLOW_SPEC_IPV6, .size = size, }; } if (parser->queue[i].ibv_attr) { dst = (void *)((uintptr_t) parser->queue[i].ibv_attr + parser->queue[i].offset); memcpy(dst, &specs, size); ++parser->queue[i].ibv_attr->num_of_specs; } parser->queue[i].offset += size; } if ((i == HASH_RXQ_UDPV4) || (i == HASH_RXQ_TCPV4) || (i == HASH_RXQ_UDPV6) || (i == HASH_RXQ_TCPV6)) { size = sizeof(struct ibv_flow_spec_tcp_udp); specs.udp_tcp = (struct ibv_flow_spec_tcp_udp) { .type = inner | ((i == HASH_RXQ_UDPV4 || i == HASH_RXQ_UDPV6) ? IBV_FLOW_SPEC_UDP : IBV_FLOW_SPEC_TCP), .size = size, }; if (parser->queue[i].ibv_attr) { dst = (void *)((uintptr_t) parser->queue[i].ibv_attr + parser->queue[i].offset); memcpy(dst, &specs, size); ++parser->queue[i].ibv_attr->num_of_specs; } parser->queue[i].offset += size; } } } /** * Update flows according to pattern and RSS hash fields. * * @param[in, out] parser * Internal parser structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_convert_rss(struct mlx5_flow_parse *parser) { unsigned int i; enum hash_rxq_type start; enum hash_rxq_type layer; int outer = parser->tunnel && parser->rss_conf.level < 2; uint64_t rss = parser->rss_conf.types; layer = outer ? parser->out_layer : parser->layer; if (layer == HASH_RXQ_TUNNEL) layer = HASH_RXQ_ETH; if (outer) { /* Only one hash type for outer RSS. */ if (rss && layer == HASH_RXQ_ETH) { start = HASH_RXQ_TCPV4; } else if (rss && layer != HASH_RXQ_ETH && !(rss & hash_rxq_init[layer].dpdk_rss_hf)) { /* If RSS not match L4 pattern, try L3 RSS. */ if (layer < HASH_RXQ_IPV4) layer = HASH_RXQ_IPV4; else if (layer > HASH_RXQ_IPV4 && layer < HASH_RXQ_IPV6) layer = HASH_RXQ_IPV6; start = layer; } else { start = layer; } /* Scan first valid hash type. */ for (i = start; rss && i <= layer; ++i) { if (!parser->queue[i].ibv_attr) continue; if (hash_rxq_init[i].dpdk_rss_hf & rss) break; } if (rss && i <= layer) parser->queue[layer].hash_fields = hash_rxq_init[i].hash_fields; /* Trim unused hash types. */ for (i = 0; i != hash_rxq_init_n; ++i) { if (parser->queue[i].ibv_attr && i != layer) { rte_free(parser->queue[i].ibv_attr); parser->queue[i].ibv_attr = NULL; } } } else { /* Expand for inner or normal RSS. */ if (rss && (layer == HASH_RXQ_ETH || layer == HASH_RXQ_IPV4)) start = HASH_RXQ_TCPV4; else if (rss && layer == HASH_RXQ_IPV6) start = HASH_RXQ_TCPV6; else start = layer; /* For L4 pattern, try L3 RSS if no L4 RSS. */ /* Trim unused hash types. */ for (i = 0; i != hash_rxq_init_n; ++i) { if (!parser->queue[i].ibv_attr) continue; if (i < start || i > layer) { rte_free(parser->queue[i].ibv_attr); parser->queue[i].ibv_attr = NULL; continue; } if (!rss) continue; if (hash_rxq_init[i].dpdk_rss_hf & rss) { parser->queue[i].hash_fields = hash_rxq_init[i].hash_fields; } else if (i != layer) { /* Remove unused RSS expansion. */ rte_free(parser->queue[i].ibv_attr); parser->queue[i].ibv_attr = NULL; } else if (layer < HASH_RXQ_IPV4 && (hash_rxq_init[HASH_RXQ_IPV4].dpdk_rss_hf & rss)) { /* Allow IPv4 RSS on L4 pattern. */ parser->queue[i].hash_fields = hash_rxq_init[HASH_RXQ_IPV4] .hash_fields; } else if (i > HASH_RXQ_IPV4 && i < HASH_RXQ_IPV6 && (hash_rxq_init[HASH_RXQ_IPV6].dpdk_rss_hf & rss)) { /* Allow IPv4 RSS on L4 pattern. */ parser->queue[i].hash_fields = hash_rxq_init[HASH_RXQ_IPV6] .hash_fields; } } } return 0; } /** * Validate and convert a flow supported by the NIC. * * @param dev * Pointer to Ethernet device. * @param[in] attr * Flow rule attributes. * @param[in] pattern * Pattern specification (list terminated by the END pattern item). * @param[in] actions * Associated actions (list terminated by the END action). * @param[out] error * Perform verbose error reporting if not NULL. * @param[in, out] parser * Internal parser structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_convert(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_flow_parse *parser) { const struct mlx5_flow_items *cur_item = mlx5_flow_items; unsigned int i; int ret; /* First step. Validate the attributes, items and actions. */ *parser = (struct mlx5_flow_parse){ .create = parser->create, .layer = HASH_RXQ_ETH, .mark_id = MLX5_FLOW_MARK_DEFAULT, }; ret = mlx5_flow_convert_attributes(attr, error); if (ret) return ret; ret = mlx5_flow_convert_actions(dev, actions, error, parser); if (ret) return ret; ret = mlx5_flow_convert_items_validate(dev, items, error, parser); if (ret) return ret; mlx5_flow_convert_finalise(parser); /* * Second step. * Allocate the memory space to store verbs specifications. */ if (parser->drop) { unsigned int offset = parser->queue[HASH_RXQ_ETH].offset; parser->queue[HASH_RXQ_ETH].ibv_attr = mlx5_flow_convert_allocate(offset, error); if (!parser->queue[HASH_RXQ_ETH].ibv_attr) goto exit_enomem; parser->queue[HASH_RXQ_ETH].offset = sizeof(struct ibv_flow_attr); } else { for (i = 0; i != hash_rxq_init_n; ++i) { unsigned int offset; offset = parser->queue[i].offset; parser->queue[i].ibv_attr = mlx5_flow_convert_allocate(offset, error); if (!parser->queue[i].ibv_attr) goto exit_enomem; parser->queue[i].offset = sizeof(struct ibv_flow_attr); } } /* Third step. Conversion parse, fill the specifications. */ parser->inner = 0; parser->tunnel = 0; parser->layer = HASH_RXQ_ETH; for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) { struct mlx5_flow_data data = { .dev = dev, .parser = parser, .error = error, }; if (items->type == RTE_FLOW_ITEM_TYPE_VOID) continue; cur_item = &mlx5_flow_items[items->type]; ret = cur_item->convert(items, (cur_item->default_mask ? cur_item->default_mask : cur_item->mask), &data); if (ret) goto exit_free; } if (!parser->drop) { /* RSS check, remove unused hash types. */ ret = mlx5_flow_convert_rss(parser); if (ret) goto exit_free; /* Complete missing specification. */ mlx5_flow_convert_finalise(parser); } mlx5_flow_update_priority(dev, parser, attr); if (parser->mark) mlx5_flow_create_flag_mark(parser, parser->mark_id); if (parser->count && parser->create) { mlx5_flow_create_count(dev, parser); if (!parser->cs) goto exit_count_error; } exit_free: /* Only verification is expected, all resources should be released. */ if (!parser->create) { for (i = 0; i != hash_rxq_init_n; ++i) { if (parser->queue[i].ibv_attr) { rte_free(parser->queue[i].ibv_attr); parser->queue[i].ibv_attr = NULL; } } } return ret; exit_enomem: for (i = 0; i != hash_rxq_init_n; ++i) { if (parser->queue[i].ibv_attr) { rte_free(parser->queue[i].ibv_attr); parser->queue[i].ibv_attr = NULL; } } rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, "cannot allocate verbs spec attributes"); return -rte_errno; exit_count_error: rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, "cannot create counter"); return -rte_errno; } /** * Copy the specification created into the flow. * * @param parser * Internal parser structure. * @param src * Create specification. * @param size * Size in bytes of the specification to copy. */ static void mlx5_flow_create_copy(struct mlx5_flow_parse *parser, void *src, unsigned int size) { unsigned int i; void *dst; for (i = 0; i != hash_rxq_init_n; ++i) { if (!parser->queue[i].ibv_attr) continue; dst = (void *)((uintptr_t)parser->queue[i].ibv_attr + parser->queue[i].offset); memcpy(dst, src, size); ++parser->queue[i].ibv_attr->num_of_specs; parser->queue[i].offset += size; } } /** * Convert Ethernet item to Verbs specification. * * @param item[in] * Item specification. * @param default_mask[in] * Default bit-masks to use when item->mask is not provided. * @param data[in, out] * User structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_create_eth(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data) { const struct rte_flow_item_eth *spec = item->spec; const struct rte_flow_item_eth *mask = item->mask; struct mlx5_flow_parse *parser = data->parser; const unsigned int eth_size = sizeof(struct ibv_flow_spec_eth); struct ibv_flow_spec_eth eth = { .type = parser->inner | IBV_FLOW_SPEC_ETH, .size = eth_size, }; parser->layer = HASH_RXQ_ETH; if (spec) { unsigned int i; if (!mask) mask = default_mask; memcpy(ð.val.dst_mac, spec->dst.addr_bytes, ETHER_ADDR_LEN); memcpy(ð.val.src_mac, spec->src.addr_bytes, ETHER_ADDR_LEN); eth.val.ether_type = spec->type; memcpy(ð.mask.dst_mac, mask->dst.addr_bytes, ETHER_ADDR_LEN); memcpy(ð.mask.src_mac, mask->src.addr_bytes, ETHER_ADDR_LEN); eth.mask.ether_type = mask->type; /* Remove unwanted bits from values. */ for (i = 0; i < ETHER_ADDR_LEN; ++i) { eth.val.dst_mac[i] &= eth.mask.dst_mac[i]; eth.val.src_mac[i] &= eth.mask.src_mac[i]; } eth.val.ether_type &= eth.mask.ether_type; } mlx5_flow_create_copy(parser, ð, eth_size); return 0; } /** * Convert VLAN item to Verbs specification. * * @param item[in] * Item specification. * @param default_mask[in] * Default bit-masks to use when item->mask is not provided. * @param data[in, out] * User structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_create_vlan(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data) { const struct rte_flow_item_vlan *spec = item->spec; const struct rte_flow_item_vlan *mask = item->mask; struct mlx5_flow_parse *parser = data->parser; struct ibv_flow_spec_eth *eth; const unsigned int eth_size = sizeof(struct ibv_flow_spec_eth); const char *msg = "VLAN cannot be empty"; if (spec) { unsigned int i; if (!mask) mask = default_mask; for (i = 0; i != hash_rxq_init_n; ++i) { if (!parser->queue[i].ibv_attr) continue; eth = (void *)((uintptr_t)parser->queue[i].ibv_attr + parser->queue[i].offset - eth_size); eth->val.vlan_tag = spec->tci; eth->mask.vlan_tag = mask->tci; eth->val.vlan_tag &= eth->mask.vlan_tag; /* * From verbs perspective an empty VLAN is equivalent * to a packet without VLAN layer. */ if (!eth->mask.vlan_tag) goto error; /* Outer TPID cannot be matched. */ if (eth->mask.ether_type) { msg = "VLAN TPID matching is not supported"; goto error; } eth->val.ether_type = spec->inner_type; eth->mask.ether_type = mask->inner_type; eth->val.ether_type &= eth->mask.ether_type; } return 0; } error: return rte_flow_error_set(data->error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, msg); } /** * Convert IPv4 item to Verbs specification. * * @param item[in] * Item specification. * @param default_mask[in] * Default bit-masks to use when item->mask is not provided. * @param data[in, out] * User structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_create_ipv4(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data) { struct priv *priv = data->dev->data->dev_private; const struct rte_flow_item_ipv4 *spec = item->spec; const struct rte_flow_item_ipv4 *mask = item->mask; struct mlx5_flow_parse *parser = data->parser; unsigned int ipv4_size = sizeof(struct ibv_flow_spec_ipv4_ext); struct ibv_flow_spec_ipv4_ext ipv4 = { .type = parser->inner | IBV_FLOW_SPEC_IPV4_EXT, .size = ipv4_size, }; if (parser->layer == HASH_RXQ_TUNNEL && parser->tunnel == ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN)] && !priv->config.l3_vxlan_en) return rte_flow_error_set(data->error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "L3 VXLAN not enabled by device" " parameter and/or not configured" " in firmware"); parser->layer = HASH_RXQ_IPV4; if (spec) { if (!mask) mask = default_mask; ipv4.val = (struct ibv_flow_ipv4_ext_filter){ .src_ip = spec->hdr.src_addr, .dst_ip = spec->hdr.dst_addr, .proto = spec->hdr.next_proto_id, .tos = spec->hdr.type_of_service, }; ipv4.mask = (struct ibv_flow_ipv4_ext_filter){ .src_ip = mask->hdr.src_addr, .dst_ip = mask->hdr.dst_addr, .proto = mask->hdr.next_proto_id, .tos = mask->hdr.type_of_service, }; /* Remove unwanted bits from values. */ ipv4.val.src_ip &= ipv4.mask.src_ip; ipv4.val.dst_ip &= ipv4.mask.dst_ip; ipv4.val.proto &= ipv4.mask.proto; ipv4.val.tos &= ipv4.mask.tos; } mlx5_flow_create_copy(parser, &ipv4, ipv4_size); return 0; } /** * Convert IPv6 item to Verbs specification. * * @param item[in] * Item specification. * @param default_mask[in] * Default bit-masks to use when item->mask is not provided. * @param data[in, out] * User structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_create_ipv6(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data) { struct priv *priv = data->dev->data->dev_private; const struct rte_flow_item_ipv6 *spec = item->spec; const struct rte_flow_item_ipv6 *mask = item->mask; struct mlx5_flow_parse *parser = data->parser; unsigned int ipv6_size = sizeof(struct ibv_flow_spec_ipv6); struct ibv_flow_spec_ipv6 ipv6 = { .type = parser->inner | IBV_FLOW_SPEC_IPV6, .size = ipv6_size, }; if (parser->layer == HASH_RXQ_TUNNEL && parser->tunnel == ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN)] && !priv->config.l3_vxlan_en) return rte_flow_error_set(data->error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "L3 VXLAN not enabled by device" " parameter and/or not configured" " in firmware"); parser->layer = HASH_RXQ_IPV6; if (spec) { unsigned int i; uint32_t vtc_flow_val; uint32_t vtc_flow_mask; if (!mask) mask = default_mask; memcpy(&ipv6.val.src_ip, spec->hdr.src_addr, RTE_DIM(ipv6.val.src_ip)); memcpy(&ipv6.val.dst_ip, spec->hdr.dst_addr, RTE_DIM(ipv6.val.dst_ip)); memcpy(&ipv6.mask.src_ip, mask->hdr.src_addr, RTE_DIM(ipv6.mask.src_ip)); memcpy(&ipv6.mask.dst_ip, mask->hdr.dst_addr, RTE_DIM(ipv6.mask.dst_ip)); vtc_flow_val = rte_be_to_cpu_32(spec->hdr.vtc_flow); vtc_flow_mask = rte_be_to_cpu_32(mask->hdr.vtc_flow); ipv6.val.flow_label = rte_cpu_to_be_32((vtc_flow_val & IPV6_HDR_FL_MASK) >> IPV6_HDR_FL_SHIFT); ipv6.val.traffic_class = (vtc_flow_val & IPV6_HDR_TC_MASK) >> IPV6_HDR_TC_SHIFT; ipv6.val.next_hdr = spec->hdr.proto; ipv6.val.hop_limit = spec->hdr.hop_limits; ipv6.mask.flow_label = rte_cpu_to_be_32((vtc_flow_mask & IPV6_HDR_FL_MASK) >> IPV6_HDR_FL_SHIFT); ipv6.mask.traffic_class = (vtc_flow_mask & IPV6_HDR_TC_MASK) >> IPV6_HDR_TC_SHIFT; ipv6.mask.next_hdr = mask->hdr.proto; ipv6.mask.hop_limit = mask->hdr.hop_limits; /* Remove unwanted bits from values. */ for (i = 0; i < RTE_DIM(ipv6.val.src_ip); ++i) { ipv6.val.src_ip[i] &= ipv6.mask.src_ip[i]; ipv6.val.dst_ip[i] &= ipv6.mask.dst_ip[i]; } ipv6.val.flow_label &= ipv6.mask.flow_label; ipv6.val.traffic_class &= ipv6.mask.traffic_class; ipv6.val.next_hdr &= ipv6.mask.next_hdr; ipv6.val.hop_limit &= ipv6.mask.hop_limit; } mlx5_flow_create_copy(parser, &ipv6, ipv6_size); return 0; } /** * Convert UDP item to Verbs specification. * * @param item[in] * Item specification. * @param default_mask[in] * Default bit-masks to use when item->mask is not provided. * @param data[in, out] * User structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_create_udp(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data) { const struct rte_flow_item_udp *spec = item->spec; const struct rte_flow_item_udp *mask = item->mask; struct mlx5_flow_parse *parser = data->parser; unsigned int udp_size = sizeof(struct ibv_flow_spec_tcp_udp); struct ibv_flow_spec_tcp_udp udp = { .type = parser->inner | IBV_FLOW_SPEC_UDP, .size = udp_size, }; if (parser->layer == HASH_RXQ_IPV4) parser->layer = HASH_RXQ_UDPV4; else parser->layer = HASH_RXQ_UDPV6; if (spec) { if (!mask) mask = default_mask; udp.val.dst_port = spec->hdr.dst_port; udp.val.src_port = spec->hdr.src_port; udp.mask.dst_port = mask->hdr.dst_port; udp.mask.src_port = mask->hdr.src_port; /* Remove unwanted bits from values. */ udp.val.src_port &= udp.mask.src_port; udp.val.dst_port &= udp.mask.dst_port; } mlx5_flow_create_copy(parser, &udp, udp_size); return 0; } /** * Convert TCP item to Verbs specification. * * @param item[in] * Item specification. * @param default_mask[in] * Default bit-masks to use when item->mask is not provided. * @param data[in, out] * User structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_create_tcp(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data) { const struct rte_flow_item_tcp *spec = item->spec; const struct rte_flow_item_tcp *mask = item->mask; struct mlx5_flow_parse *parser = data->parser; unsigned int tcp_size = sizeof(struct ibv_flow_spec_tcp_udp); struct ibv_flow_spec_tcp_udp tcp = { .type = parser->inner | IBV_FLOW_SPEC_TCP, .size = tcp_size, }; if (parser->layer == HASH_RXQ_IPV4) parser->layer = HASH_RXQ_TCPV4; else parser->layer = HASH_RXQ_TCPV6; if (spec) { if (!mask) mask = default_mask; tcp.val.dst_port = spec->hdr.dst_port; tcp.val.src_port = spec->hdr.src_port; tcp.mask.dst_port = mask->hdr.dst_port; tcp.mask.src_port = mask->hdr.src_port; /* Remove unwanted bits from values. */ tcp.val.src_port &= tcp.mask.src_port; tcp.val.dst_port &= tcp.mask.dst_port; } mlx5_flow_create_copy(parser, &tcp, tcp_size); return 0; } /** * Convert VXLAN item to Verbs specification. * * @param item[in] * Item specification. * @param default_mask[in] * Default bit-masks to use when item->mask is not provided. * @param data[in, out] * User structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_create_vxlan(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data) { const struct rte_flow_item_vxlan *spec = item->spec; const struct rte_flow_item_vxlan *mask = item->mask; struct mlx5_flow_parse *parser = data->parser; unsigned int size = sizeof(struct ibv_flow_spec_tunnel); struct ibv_flow_spec_tunnel vxlan = { .type = parser->inner | IBV_FLOW_SPEC_VXLAN_TUNNEL, .size = size, }; union vni { uint32_t vlan_id; uint8_t vni[4]; } id; id.vni[0] = 0; parser->inner = IBV_FLOW_SPEC_INNER; parser->tunnel = ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN)]; parser->out_layer = parser->layer; parser->layer = HASH_RXQ_TUNNEL; if (spec) { if (!mask) mask = default_mask; memcpy(&id.vni[1], spec->vni, 3); vxlan.val.tunnel_id = id.vlan_id; memcpy(&id.vni[1], mask->vni, 3); vxlan.mask.tunnel_id = id.vlan_id; /* Remove unwanted bits from values. */ vxlan.val.tunnel_id &= vxlan.mask.tunnel_id; } /* * Tunnel id 0 is equivalent as not adding a VXLAN layer, if only this * layer is defined in the Verbs specification it is interpreted as * wildcard and all packets will match this rule, if it follows a full * stack layer (ex: eth / ipv4 / udp), all packets matching the layers * before will also match this rule. * To avoid such situation, VNI 0 is currently refused. */ /* Only allow tunnel w/o tunnel id pattern after proper outer spec. */ if (parser->out_layer == HASH_RXQ_ETH && !vxlan.val.tunnel_id) return rte_flow_error_set(data->error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "VxLAN vni cannot be 0"); mlx5_flow_create_copy(parser, &vxlan, size); return 0; } /** * Convert VXLAN-GPE item to Verbs specification. * * @param item[in] * Item specification. * @param default_mask[in] * Default bit-masks to use when item->mask is not provided. * @param data[in, out] * User structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_create_vxlan_gpe(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data) { struct priv *priv = data->dev->data->dev_private; const struct rte_flow_item_vxlan_gpe *spec = item->spec; const struct rte_flow_item_vxlan_gpe *mask = item->mask; struct mlx5_flow_parse *parser = data->parser; unsigned int size = sizeof(struct ibv_flow_spec_tunnel); struct ibv_flow_spec_tunnel vxlan = { .type = parser->inner | IBV_FLOW_SPEC_VXLAN_TUNNEL, .size = size, }; union vni { uint32_t vlan_id; uint8_t vni[4]; } id; if (!priv->config.l3_vxlan_en) return rte_flow_error_set(data->error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "L3 VXLAN not enabled by device" " parameter and/or not configured" " in firmware"); id.vni[0] = 0; parser->inner = IBV_FLOW_SPEC_INNER; parser->tunnel = ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_VXLAN_GPE)]; parser->out_layer = parser->layer; parser->layer = HASH_RXQ_TUNNEL; if (spec) { if (!mask) mask = default_mask; memcpy(&id.vni[1], spec->vni, 3); vxlan.val.tunnel_id = id.vlan_id; memcpy(&id.vni[1], mask->vni, 3); vxlan.mask.tunnel_id = id.vlan_id; if (spec->protocol) return rte_flow_error_set(data->error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "VxLAN-GPE protocol not" " supported"); /* Remove unwanted bits from values. */ vxlan.val.tunnel_id &= vxlan.mask.tunnel_id; } /* * Tunnel id 0 is equivalent as not adding a VXLAN layer, if only this * layer is defined in the Verbs specification it is interpreted as * wildcard and all packets will match this rule, if it follows a full * stack layer (ex: eth / ipv4 / udp), all packets matching the layers * before will also match this rule. * To avoid such situation, VNI 0 is currently refused. */ /* Only allow tunnel w/o tunnel id pattern after proper outer spec. */ if (parser->out_layer == HASH_RXQ_ETH && !vxlan.val.tunnel_id) return rte_flow_error_set(data->error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "VxLAN-GPE vni cannot be 0"); mlx5_flow_create_copy(parser, &vxlan, size); return 0; } /** * Convert GRE item to Verbs specification. * * @param item[in] * Item specification. * @param default_mask[in] * Default bit-masks to use when item->mask is not provided. * @param data[in, out] * User structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_create_gre(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data) { struct mlx5_flow_parse *parser = data->parser; #ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT (void)default_mask; unsigned int size = sizeof(struct ibv_flow_spec_tunnel); struct ibv_flow_spec_tunnel tunnel = { .type = parser->inner | IBV_FLOW_SPEC_VXLAN_TUNNEL, .size = size, }; #else const struct rte_flow_item_gre *spec = item->spec; const struct rte_flow_item_gre *mask = item->mask; unsigned int size = sizeof(struct ibv_flow_spec_gre); struct ibv_flow_spec_gre tunnel = { .type = parser->inner | IBV_FLOW_SPEC_GRE, .size = size, }; #endif struct ibv_flow_spec_ipv4_ext *ipv4; struct ibv_flow_spec_ipv6 *ipv6; unsigned int i; parser->inner = IBV_FLOW_SPEC_INNER; parser->tunnel = ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_GRE)]; parser->out_layer = parser->layer; parser->layer = HASH_RXQ_TUNNEL; #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT if (spec) { if (!mask) mask = default_mask; tunnel.val.c_ks_res0_ver = spec->c_rsvd0_ver; tunnel.val.protocol = spec->protocol; tunnel.mask.c_ks_res0_ver = mask->c_rsvd0_ver; tunnel.mask.protocol = mask->protocol; /* Remove unwanted bits from values. */ tunnel.val.c_ks_res0_ver &= tunnel.mask.c_ks_res0_ver; tunnel.val.protocol &= tunnel.mask.protocol; tunnel.val.key &= tunnel.mask.key; } #endif /* Update encapsulation IP layer protocol. */ for (i = 0; i != hash_rxq_init_n; ++i) { if (!parser->queue[i].ibv_attr) continue; if (parser->out_layer == HASH_RXQ_IPV4) { ipv4 = (void *)((uintptr_t)parser->queue[i].ibv_attr + parser->queue[i].offset - sizeof(struct ibv_flow_spec_ipv4_ext)); if (ipv4->mask.proto && ipv4->val.proto != MLX5_GRE) break; ipv4->val.proto = MLX5_GRE; ipv4->mask.proto = 0xff; } else if (parser->out_layer == HASH_RXQ_IPV6) { ipv6 = (void *)((uintptr_t)parser->queue[i].ibv_attr + parser->queue[i].offset - sizeof(struct ibv_flow_spec_ipv6)); if (ipv6->mask.next_hdr && ipv6->val.next_hdr != MLX5_GRE) break; ipv6->val.next_hdr = MLX5_GRE; ipv6->mask.next_hdr = 0xff; } } if (i != hash_rxq_init_n) return rte_flow_error_set(data->error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "IP protocol of GRE must be 47"); mlx5_flow_create_copy(parser, &tunnel, size); return 0; } /** * Convert MPLS item to Verbs specification. * MPLS tunnel types currently supported are MPLS-in-GRE and MPLS-in-UDP. * * @param item[in] * Item specification. * @param default_mask[in] * Default bit-masks to use when item->mask is not provided. * @param data[in, out] * User structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_create_mpls(const struct rte_flow_item *item, const void *default_mask, struct mlx5_flow_data *data) { #ifndef HAVE_IBV_DEVICE_MPLS_SUPPORT (void)default_mask; return rte_flow_error_set(data->error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, item, "MPLS is not supported by driver"); #else const struct rte_flow_item_mpls *spec = item->spec; const struct rte_flow_item_mpls *mask = item->mask; struct mlx5_flow_parse *parser = data->parser; unsigned int size = sizeof(struct ibv_flow_spec_mpls); struct ibv_flow_spec_mpls mpls = { .type = IBV_FLOW_SPEC_MPLS, .size = size, }; parser->inner = IBV_FLOW_SPEC_INNER; if (parser->layer == HASH_RXQ_UDPV4 || parser->layer == HASH_RXQ_UDPV6) { parser->tunnel = ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_MPLS_IN_UDP)]; parser->out_layer = parser->layer; } else { parser->tunnel = ptype_ext[PTYPE_IDX(RTE_PTYPE_TUNNEL_MPLS_IN_GRE)]; /* parser->out_layer stays as in GRE out_layer. */ } parser->layer = HASH_RXQ_TUNNEL; if (spec) { if (!mask) mask = default_mask; /* * The verbs label field includes the entire MPLS header: * bits 0:19 - label value field. * bits 20:22 - traffic class field. * bits 23 - bottom of stack bit. * bits 24:31 - ttl field. */ mpls.val.label = *(const uint32_t *)spec; mpls.mask.label = *(const uint32_t *)mask; /* Remove unwanted bits from values. */ mpls.val.label &= mpls.mask.label; } mlx5_flow_create_copy(parser, &mpls, size); return 0; #endif } /** * Convert mark/flag action to Verbs specification. * * @param parser * Internal parser structure. * @param mark_id * Mark identifier. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_create_flag_mark(struct mlx5_flow_parse *parser, uint32_t mark_id) { unsigned int size = sizeof(struct ibv_flow_spec_action_tag); struct ibv_flow_spec_action_tag tag = { .type = IBV_FLOW_SPEC_ACTION_TAG, .size = size, .tag_id = mlx5_flow_mark_set(mark_id), }; assert(parser->mark); mlx5_flow_create_copy(parser, &tag, size); return 0; } /** * Convert count action to Verbs specification. * * @param dev * Pointer to Ethernet device. * @param parser * Pointer to MLX5 flow parser structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_create_count(struct rte_eth_dev *dev __rte_unused, struct mlx5_flow_parse *parser __rte_unused) { #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT struct priv *priv = dev->data->dev_private; unsigned int size = sizeof(struct ibv_flow_spec_counter_action); struct ibv_counter_set_init_attr init_attr = {0}; struct ibv_flow_spec_counter_action counter = { .type = IBV_FLOW_SPEC_ACTION_COUNT, .size = size, .counter_set_handle = 0, }; init_attr.counter_set_id = 0; parser->cs = mlx5_glue->create_counter_set(priv->ctx, &init_attr); if (!parser->cs) { rte_errno = EINVAL; return -rte_errno; } counter.counter_set_handle = parser->cs->handle; mlx5_flow_create_copy(parser, &counter, size); #endif return 0; } /** * Complete flow rule creation with a drop queue. * * @param dev * Pointer to Ethernet device. * @param parser * Internal parser structure. * @param flow * Pointer to the rte_flow. * @param[out] error * Perform verbose error reporting if not NULL. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_create_action_queue_drop(struct rte_eth_dev *dev, struct mlx5_flow_parse *parser, struct rte_flow *flow, struct rte_flow_error *error) { struct priv *priv = dev->data->dev_private; struct ibv_flow_spec_action_drop *drop; unsigned int size = sizeof(struct ibv_flow_spec_action_drop); assert(priv->pd); assert(priv->ctx); flow->drop = 1; drop = (void *)((uintptr_t)parser->queue[HASH_RXQ_ETH].ibv_attr + parser->queue[HASH_RXQ_ETH].offset); *drop = (struct ibv_flow_spec_action_drop){ .type = IBV_FLOW_SPEC_ACTION_DROP, .size = size, }; ++parser->queue[HASH_RXQ_ETH].ibv_attr->num_of_specs; parser->queue[HASH_RXQ_ETH].offset += size; flow->frxq[HASH_RXQ_ETH].ibv_attr = parser->queue[HASH_RXQ_ETH].ibv_attr; if (parser->count) flow->cs = parser->cs; if (!dev->data->dev_started) return 0; parser->queue[HASH_RXQ_ETH].ibv_attr = NULL; flow->frxq[HASH_RXQ_ETH].ibv_flow = mlx5_glue->create_flow(priv->flow_drop_queue->qp, flow->frxq[HASH_RXQ_ETH].ibv_attr); if (!flow->frxq[HASH_RXQ_ETH].ibv_flow) { rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE, NULL, "flow rule creation failure"); goto error; } return 0; error: assert(flow); if (flow->frxq[HASH_RXQ_ETH].ibv_flow) { claim_zero(mlx5_glue->destroy_flow (flow->frxq[HASH_RXQ_ETH].ibv_flow)); flow->frxq[HASH_RXQ_ETH].ibv_flow = NULL; } if (flow->frxq[HASH_RXQ_ETH].ibv_attr) { rte_free(flow->frxq[HASH_RXQ_ETH].ibv_attr); flow->frxq[HASH_RXQ_ETH].ibv_attr = NULL; } if (flow->cs) { claim_zero(mlx5_glue->destroy_counter_set(flow->cs)); flow->cs = NULL; parser->cs = NULL; } return -rte_errno; } /** * Create hash Rx queues when RSS is enabled. * * @param dev * Pointer to Ethernet device. * @param parser * Internal parser structure. * @param flow * Pointer to the rte_flow. * @param[out] error * Perform verbose error reporting if not NULL. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_create_action_queue_rss(struct rte_eth_dev *dev, struct mlx5_flow_parse *parser, struct rte_flow *flow, struct rte_flow_error *error) { unsigned int i; for (i = 0; i != hash_rxq_init_n; ++i) { if (!parser->queue[i].ibv_attr) continue; flow->frxq[i].ibv_attr = parser->queue[i].ibv_attr; parser->queue[i].ibv_attr = NULL; flow->frxq[i].hash_fields = parser->queue[i].hash_fields; if (!dev->data->dev_started) continue; flow->frxq[i].hrxq = mlx5_hrxq_get(dev, parser->rss_conf.key, parser->rss_conf.key_len, flow->frxq[i].hash_fields, parser->rss_conf.queue, parser->rss_conf.queue_num, parser->tunnel, parser->rss_conf.level); if (flow->frxq[i].hrxq) continue; flow->frxq[i].hrxq = mlx5_hrxq_new(dev, parser->rss_conf.key, parser->rss_conf.key_len, flow->frxq[i].hash_fields, parser->rss_conf.queue, parser->rss_conf.queue_num, parser->tunnel, parser->rss_conf.level); if (!flow->frxq[i].hrxq) { return rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE, NULL, "cannot create hash rxq"); } } return 0; } /** * RXQ update after flow rule creation. * * @param dev * Pointer to Ethernet device. * @param flow * Pointer to the flow rule. */ static void mlx5_flow_create_update_rxqs(struct rte_eth_dev *dev, struct rte_flow *flow) { struct priv *priv = dev->data->dev_private; unsigned int i; unsigned int j; if (!dev->data->dev_started) return; for (i = 0; i != flow->rss_conf.queue_num; ++i) { struct mlx5_rxq_data *rxq_data = (*priv->rxqs) [(*flow->queues)[i]]; struct mlx5_rxq_ctrl *rxq_ctrl = container_of(rxq_data, struct mlx5_rxq_ctrl, rxq); uint8_t tunnel = PTYPE_IDX(flow->tunnel); rxq_data->mark |= flow->mark; if (!tunnel) continue; rxq_ctrl->tunnel_types[tunnel] += 1; /* Clear tunnel type if more than one tunnel types set. */ for (j = 0; j != RTE_DIM(rxq_ctrl->tunnel_types); ++j) { if (j == tunnel) continue; if (rxq_ctrl->tunnel_types[j] > 0) { rxq_data->tunnel = 0; break; } } if (j == RTE_DIM(rxq_ctrl->tunnel_types)) rxq_data->tunnel = flow->tunnel; } } /** * Dump flow hash RX queue detail. * * @param dev * Pointer to Ethernet device. * @param flow * Pointer to the rte_flow. * @param hrxq_idx * Hash RX queue index. */ static void mlx5_flow_dump(struct rte_eth_dev *dev __rte_unused, struct rte_flow *flow __rte_unused, unsigned int hrxq_idx __rte_unused) { #ifndef NDEBUG uintptr_t spec_ptr; uint16_t j; char buf[256]; uint8_t off; uint64_t extra_hash_fields = 0; #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT if (flow->tunnel && flow->rss_conf.level > 1) extra_hash_fields = (uint32_t)IBV_RX_HASH_INNER; #endif spec_ptr = (uintptr_t)(flow->frxq[hrxq_idx].ibv_attr + 1); for (j = 0, off = 0; j < flow->frxq[hrxq_idx].ibv_attr->num_of_specs; j++) { struct ibv_flow_spec *spec = (void *)spec_ptr; off += sprintf(buf + off, " %x(%hu)", spec->hdr.type, spec->hdr.size); spec_ptr += spec->hdr.size; } DRV_LOG(DEBUG, "port %u Verbs flow %p type %u: hrxq:%p qp:%p ind:%p," " hash:%" PRIx64 "/%u specs:%hhu(%hu), priority:%hu, type:%d," " flags:%x, comp_mask:%x specs:%s", dev->data->port_id, (void *)flow, hrxq_idx, (void *)flow->frxq[hrxq_idx].hrxq, (void *)flow->frxq[hrxq_idx].hrxq->qp, (void *)flow->frxq[hrxq_idx].hrxq->ind_table, (flow->frxq[hrxq_idx].hash_fields | extra_hash_fields), flow->rss_conf.queue_num, flow->frxq[hrxq_idx].ibv_attr->num_of_specs, flow->frxq[hrxq_idx].ibv_attr->size, flow->frxq[hrxq_idx].ibv_attr->priority, flow->frxq[hrxq_idx].ibv_attr->type, flow->frxq[hrxq_idx].ibv_attr->flags, flow->frxq[hrxq_idx].ibv_attr->comp_mask, buf); #endif } /** * Complete flow rule creation. * * @param dev * Pointer to Ethernet device. * @param parser * Internal parser structure. * @param flow * Pointer to the rte_flow. * @param[out] error * Perform verbose error reporting if not NULL. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_create_action_queue(struct rte_eth_dev *dev, struct mlx5_flow_parse *parser, struct rte_flow *flow, struct rte_flow_error *error) { struct priv *priv __rte_unused = dev->data->dev_private; int ret; unsigned int i; unsigned int flows_n = 0; assert(priv->pd); assert(priv->ctx); assert(!parser->drop); ret = mlx5_flow_create_action_queue_rss(dev, parser, flow, error); if (ret) goto error; if (parser->count) flow->cs = parser->cs; if (!dev->data->dev_started) return 0; for (i = 0; i != hash_rxq_init_n; ++i) { if (!flow->frxq[i].hrxq) continue; flow->frxq[i].ibv_flow = mlx5_glue->create_flow(flow->frxq[i].hrxq->qp, flow->frxq[i].ibv_attr); mlx5_flow_dump(dev, flow, i); if (!flow->frxq[i].ibv_flow) { rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE, NULL, "flow rule creation failure"); goto error; } ++flows_n; } if (!flows_n) { rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_HANDLE, NULL, "internal error in flow creation"); goto error; } mlx5_flow_create_update_rxqs(dev, flow); return 0; error: ret = rte_errno; /* Save rte_errno before cleanup. */ assert(flow); for (i = 0; i != hash_rxq_init_n; ++i) { if (flow->frxq[i].ibv_flow) { struct ibv_flow *ibv_flow = flow->frxq[i].ibv_flow; claim_zero(mlx5_glue->destroy_flow(ibv_flow)); } if (flow->frxq[i].hrxq) mlx5_hrxq_release(dev, flow->frxq[i].hrxq); if (flow->frxq[i].ibv_attr) rte_free(flow->frxq[i].ibv_attr); } if (flow->cs) { claim_zero(mlx5_glue->destroy_counter_set(flow->cs)); flow->cs = NULL; parser->cs = NULL; } rte_errno = ret; /* Restore rte_errno. */ return -rte_errno; } /** * Convert a flow. * * @param dev * Pointer to Ethernet device. * @param list * Pointer to a TAILQ flow list. * @param[in] attr * Flow rule attributes. * @param[in] pattern * Pattern specification (list terminated by the END pattern item). * @param[in] actions * Associated actions (list terminated by the END action). * @param[out] error * Perform verbose error reporting if not NULL. * * @return * A flow on success, NULL otherwise and rte_errno is set. */ static struct rte_flow * mlx5_flow_list_create(struct rte_eth_dev *dev, struct mlx5_flows *list, 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_flow_parse parser = { .create = 1, }; struct rte_flow *flow = NULL; unsigned int i; int ret; ret = mlx5_flow_convert(dev, attr, items, actions, error, &parser); if (ret) goto exit; flow = rte_calloc(__func__, 1, sizeof(*flow) + parser.rss_conf.queue_num * sizeof(uint16_t), 0); if (!flow) { rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, "cannot allocate flow memory"); return NULL; } /* Copy configuration. */ flow->queues = (uint16_t (*)[])(flow + 1); flow->tunnel = parser.tunnel; flow->rss_conf = (struct rte_flow_action_rss){ .func = RTE_ETH_HASH_FUNCTION_DEFAULT, .level = parser.rss_conf.level, .types = parser.rss_conf.types, .key_len = parser.rss_conf.key_len, .queue_num = parser.rss_conf.queue_num, .key = memcpy(flow->rss_key, parser.rss_conf.key, sizeof(*parser.rss_conf.key) * parser.rss_conf.key_len), .queue = memcpy(flow->queues, parser.rss_conf.queue, sizeof(*parser.rss_conf.queue) * parser.rss_conf.queue_num), }; flow->mark = parser.mark; /* finalise the flow. */ if (parser.drop) ret = mlx5_flow_create_action_queue_drop(dev, &parser, flow, error); else ret = mlx5_flow_create_action_queue(dev, &parser, flow, error); if (ret) goto exit; TAILQ_INSERT_TAIL(list, flow, next); DRV_LOG(DEBUG, "port %u flow created %p", dev->data->port_id, (void *)flow); return flow; exit: DRV_LOG(ERR, "port %u flow creation error: %s", dev->data->port_id, error->message); for (i = 0; i != hash_rxq_init_n; ++i) { if (parser.queue[i].ibv_attr) rte_free(parser.queue[i].ibv_attr); } rte_free(flow); return NULL; } /** * 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 actions[], struct rte_flow_error *error) { struct mlx5_flow_parse parser = { .create = 0, }; return mlx5_flow_convert(dev, attr, items, actions, error, &parser); } /** * 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 priv *priv = dev->data->dev_private; return mlx5_flow_list_create(dev, &priv->flows, attr, items, actions, error); } /** * Destroy a flow in a list. * * @param dev * Pointer to Ethernet device. * @param list * Pointer to a TAILQ flow list. * @param[in] flow * Flow to destroy. */ static void mlx5_flow_list_destroy(struct rte_eth_dev *dev, struct mlx5_flows *list, struct rte_flow *flow) { struct priv *priv = dev->data->dev_private; unsigned int i; if (flow->drop || !dev->data->dev_started) goto free; for (i = 0; flow->tunnel && i != flow->rss_conf.queue_num; ++i) { /* Update queue tunnel type. */ struct mlx5_rxq_data *rxq_data = (*priv->rxqs) [(*flow->queues)[i]]; struct mlx5_rxq_ctrl *rxq_ctrl = container_of(rxq_data, struct mlx5_rxq_ctrl, rxq); uint8_t tunnel = PTYPE_IDX(flow->tunnel); assert(rxq_ctrl->tunnel_types[tunnel] > 0); rxq_ctrl->tunnel_types[tunnel] -= 1; if (!rxq_ctrl->tunnel_types[tunnel]) { /* Update tunnel type. */ uint8_t j; uint8_t types = 0; uint8_t last; for (j = 0; j < RTE_DIM(rxq_ctrl->tunnel_types); j++) if (rxq_ctrl->tunnel_types[j]) { types += 1; last = j; } /* Keep same if more than one tunnel types left. */ if (types == 1) rxq_data->tunnel = ptype_ext[last]; else if (types == 0) /* No tunnel type left. */ rxq_data->tunnel = 0; } } for (i = 0; flow->mark && i != flow->rss_conf.queue_num; ++i) { struct rte_flow *tmp; int mark = 0; /* * To remove the mark from the queue, the queue must not be * present in any other marked flow (RSS or not). */ TAILQ_FOREACH(tmp, list, next) { unsigned int j; uint16_t *tqs = NULL; uint16_t tq_n = 0; if (!tmp->mark) continue; for (j = 0; j != hash_rxq_init_n; ++j) { if (!tmp->frxq[j].hrxq) continue; tqs = tmp->frxq[j].hrxq->ind_table->queues; tq_n = tmp->frxq[j].hrxq->ind_table->queues_n; } if (!tq_n) continue; for (j = 0; (j != tq_n) && !mark; j++) if (tqs[j] == (*flow->queues)[i]) mark = 1; } (*priv->rxqs)[(*flow->queues)[i]]->mark = mark; } free: if (flow->drop) { if (flow->frxq[HASH_RXQ_ETH].ibv_flow) claim_zero(mlx5_glue->destroy_flow (flow->frxq[HASH_RXQ_ETH].ibv_flow)); rte_free(flow->frxq[HASH_RXQ_ETH].ibv_attr); } else { for (i = 0; i != hash_rxq_init_n; ++i) { struct mlx5_flow *frxq = &flow->frxq[i]; if (frxq->ibv_flow) claim_zero(mlx5_glue->destroy_flow (frxq->ibv_flow)); if (frxq->hrxq) mlx5_hrxq_release(dev, frxq->hrxq); if (frxq->ibv_attr) rte_free(frxq->ibv_attr); } } if (flow->cs) { claim_zero(mlx5_glue->destroy_counter_set(flow->cs)); flow->cs = NULL; } TAILQ_REMOVE(list, flow, next); DRV_LOG(DEBUG, "port %u flow destroyed %p", dev->data->port_id, (void *)flow); rte_free(flow); } /** * Destroy all flows. * * @param dev * Pointer to Ethernet device. * @param list * Pointer to a TAILQ flow list. */ void mlx5_flow_list_flush(struct rte_eth_dev *dev, struct mlx5_flows *list) { while (!TAILQ_EMPTY(list)) { struct rte_flow *flow; flow = TAILQ_FIRST(list); mlx5_flow_list_destroy(dev, list, flow); } } /** * Create drop queue. * * @param dev * Pointer to Ethernet device. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_create_drop_queue(struct rte_eth_dev *dev) { struct priv *priv = dev->data->dev_private; struct mlx5_hrxq_drop *fdq = NULL; assert(priv->pd); assert(priv->ctx); fdq = rte_calloc(__func__, 1, sizeof(*fdq), 0); if (!fdq) { DRV_LOG(WARNING, "port %u cannot allocate memory for drop queue", dev->data->port_id); rte_errno = ENOMEM; return -rte_errno; } fdq->cq = mlx5_glue->create_cq(priv->ctx, 1, NULL, NULL, 0); if (!fdq->cq) { DRV_LOG(WARNING, "port %u cannot allocate CQ for drop queue", dev->data->port_id); rte_errno = errno; goto error; } fdq->wq = mlx5_glue->create_wq (priv->ctx, &(struct ibv_wq_init_attr){ .wq_type = IBV_WQT_RQ, .max_wr = 1, .max_sge = 1, .pd = priv->pd, .cq = fdq->cq, }); if (!fdq->wq) { DRV_LOG(WARNING, "port %u cannot allocate WQ for drop queue", dev->data->port_id); rte_errno = errno; goto error; } fdq->ind_table = mlx5_glue->create_rwq_ind_table (priv->ctx, &(struct ibv_rwq_ind_table_init_attr){ .log_ind_tbl_size = 0, .ind_tbl = &fdq->wq, .comp_mask = 0, }); if (!fdq->ind_table) { DRV_LOG(WARNING, "port %u cannot allocate indirection table for drop" " queue", dev->data->port_id); rte_errno = errno; goto error; } fdq->qp = mlx5_glue->create_qp_ex (priv->ctx, &(struct ibv_qp_init_attr_ex){ .qp_type = IBV_QPT_RAW_PACKET, .comp_mask = IBV_QP_INIT_ATTR_PD | IBV_QP_INIT_ATTR_IND_TABLE | IBV_QP_INIT_ATTR_RX_HASH, .rx_hash_conf = (struct ibv_rx_hash_conf){ .rx_hash_function = IBV_RX_HASH_FUNC_TOEPLITZ, .rx_hash_key_len = rss_hash_default_key_len, .rx_hash_key = rss_hash_default_key, .rx_hash_fields_mask = 0, }, .rwq_ind_tbl = fdq->ind_table, .pd = priv->pd }); if (!fdq->qp) { DRV_LOG(WARNING, "port %u cannot allocate QP for drop queue", dev->data->port_id); rte_errno = errno; goto error; } priv->flow_drop_queue = fdq; return 0; error: if (fdq->qp) claim_zero(mlx5_glue->destroy_qp(fdq->qp)); if (fdq->ind_table) claim_zero(mlx5_glue->destroy_rwq_ind_table(fdq->ind_table)); if (fdq->wq) claim_zero(mlx5_glue->destroy_wq(fdq->wq)); if (fdq->cq) claim_zero(mlx5_glue->destroy_cq(fdq->cq)); if (fdq) rte_free(fdq); priv->flow_drop_queue = NULL; return -rte_errno; } /** * Delete drop queue. * * @param dev * Pointer to Ethernet device. */ void mlx5_flow_delete_drop_queue(struct rte_eth_dev *dev) { struct priv *priv = dev->data->dev_private; struct mlx5_hrxq_drop *fdq = priv->flow_drop_queue; if (!fdq) return; if (fdq->qp) claim_zero(mlx5_glue->destroy_qp(fdq->qp)); if (fdq->ind_table) claim_zero(mlx5_glue->destroy_rwq_ind_table(fdq->ind_table)); if (fdq->wq) claim_zero(mlx5_glue->destroy_wq(fdq->wq)); if (fdq->cq) claim_zero(mlx5_glue->destroy_cq(fdq->cq)); rte_free(fdq); priv->flow_drop_queue = NULL; } /** * Remove all flows. * * @param dev * Pointer to Ethernet device. * @param list * Pointer to a TAILQ flow list. */ void mlx5_flow_stop(struct rte_eth_dev *dev, struct mlx5_flows *list) { struct priv *priv = dev->data->dev_private; struct rte_flow *flow; unsigned int i; TAILQ_FOREACH_REVERSE(flow, list, mlx5_flows, next) { struct mlx5_ind_table_ibv *ind_tbl = NULL; if (flow->drop) { if (!flow->frxq[HASH_RXQ_ETH].ibv_flow) continue; claim_zero(mlx5_glue->destroy_flow (flow->frxq[HASH_RXQ_ETH].ibv_flow)); flow->frxq[HASH_RXQ_ETH].ibv_flow = NULL; DRV_LOG(DEBUG, "port %u flow %p removed", dev->data->port_id, (void *)flow); /* Next flow. */ continue; } /* Verify the flow has not already been cleaned. */ for (i = 0; i != hash_rxq_init_n; ++i) { if (!flow->frxq[i].ibv_flow) continue; /* * Indirection table may be necessary to remove the * flags in the Rx queues. * This helps to speed-up the process by avoiding * another loop. */ ind_tbl = flow->frxq[i].hrxq->ind_table; break; } if (i == hash_rxq_init_n) return; if (flow->mark) { assert(ind_tbl); for (i = 0; i != ind_tbl->queues_n; ++i) (*priv->rxqs)[ind_tbl->queues[i]]->mark = 0; } for (i = 0; i != hash_rxq_init_n; ++i) { if (!flow->frxq[i].ibv_flow) continue; claim_zero(mlx5_glue->destroy_flow (flow->frxq[i].ibv_flow)); flow->frxq[i].ibv_flow = NULL; mlx5_hrxq_release(dev, flow->frxq[i].hrxq); flow->frxq[i].hrxq = NULL; } DRV_LOG(DEBUG, "port %u flow %p removed", dev->data->port_id, (void *)flow); } /* Cleanup Rx queue tunnel info. */ for (i = 0; i != priv->rxqs_n; ++i) { struct mlx5_rxq_data *q = (*priv->rxqs)[i]; struct mlx5_rxq_ctrl *rxq_ctrl = container_of(q, struct mlx5_rxq_ctrl, rxq); if (!q) continue; memset((void *)rxq_ctrl->tunnel_types, 0, sizeof(rxq_ctrl->tunnel_types)); q->tunnel = 0; } } /** * Add all flows. * * @param dev * Pointer to Ethernet device. * @param list * Pointer to a TAILQ flow list. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ int mlx5_flow_start(struct rte_eth_dev *dev, struct mlx5_flows *list) { struct priv *priv = dev->data->dev_private; struct rte_flow *flow; TAILQ_FOREACH(flow, list, next) { unsigned int i; if (flow->drop) { flow->frxq[HASH_RXQ_ETH].ibv_flow = mlx5_glue->create_flow (priv->flow_drop_queue->qp, flow->frxq[HASH_RXQ_ETH].ibv_attr); if (!flow->frxq[HASH_RXQ_ETH].ibv_flow) { DRV_LOG(DEBUG, "port %u flow %p cannot be applied", dev->data->port_id, (void *)flow); rte_errno = EINVAL; return -rte_errno; } DRV_LOG(DEBUG, "port %u flow %p applied", dev->data->port_id, (void *)flow); /* Next flow. */ continue; } for (i = 0; i != hash_rxq_init_n; ++i) { if (!flow->frxq[i].ibv_attr) continue; flow->frxq[i].hrxq = mlx5_hrxq_get(dev, flow->rss_conf.key, flow->rss_conf.key_len, flow->frxq[i].hash_fields, flow->rss_conf.queue, flow->rss_conf.queue_num, flow->tunnel, flow->rss_conf.level); if (flow->frxq[i].hrxq) goto flow_create; flow->frxq[i].hrxq = mlx5_hrxq_new(dev, flow->rss_conf.key, flow->rss_conf.key_len, flow->frxq[i].hash_fields, flow->rss_conf.queue, flow->rss_conf.queue_num, flow->tunnel, flow->rss_conf.level); if (!flow->frxq[i].hrxq) { DRV_LOG(DEBUG, "port %u flow %p cannot create hash" " rxq", dev->data->port_id, (void *)flow); rte_errno = EINVAL; return -rte_errno; } flow_create: mlx5_flow_dump(dev, flow, i); flow->frxq[i].ibv_flow = mlx5_glue->create_flow(flow->frxq[i].hrxq->qp, flow->frxq[i].ibv_attr); if (!flow->frxq[i].ibv_flow) { DRV_LOG(DEBUG, "port %u flow %p type %u cannot be" " applied", dev->data->port_id, (void *)flow, i); rte_errno = EINVAL; return -rte_errno; } } mlx5_flow_create_update_rxqs(dev, flow); } return 0; } /** * 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 priv *priv = dev->data->dev_private; struct rte_flow *flow; int ret = 0; TAILQ_FOREACH(flow, &priv->flows, next) { DRV_LOG(DEBUG, "port %u flow %p still referenced", dev->data->port_id, (void *)flow); ++ret; } return ret; } /** * 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 priv *priv = dev->data->dev_private; const struct rte_flow_attr attr = { .ingress = 1, .priority = MLX5_CTRL_FLOW_PRIORITY, }; 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, }, }; struct rte_flow *flow; struct rte_flow_error error; unsigned int i; if (!priv->reta_idx_n) { rte_errno = EINVAL; return -rte_errno; } for (i = 0; i != priv->reta_idx_n; ++i) queue[i] = (*priv->reta_idx)[i]; flow = mlx5_flow_list_create(dev, &priv->ctrl_flows, &attr, items, actions, &error); if (!flow) 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); } /** * 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 priv *priv = dev->data->dev_private; mlx5_flow_list_destroy(dev, &priv->flows, 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 priv *priv = dev->data->dev_private; mlx5_flow_list_flush(dev, &priv->flows); return 0; } #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT /** * Query flow counter. * * @param cs * the counter set. * @param counter_value * returned data from the counter. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_query_count(struct ibv_counter_set *cs, struct mlx5_flow_counter_stats *counter_stats, struct rte_flow_query_count *query_count, struct rte_flow_error *error) { uint64_t counters[2]; struct ibv_query_counter_set_attr query_cs_attr = { .cs = cs, .query_flags = IBV_COUNTER_SET_FORCE_UPDATE, }; struct ibv_counter_set_data query_out = { .out = counters, .outlen = 2 * sizeof(uint64_t), }; int err = mlx5_glue->query_counter_set(&query_cs_attr, &query_out); if (err) return rte_flow_error_set(error, err, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, "cannot read counter"); query_count->hits_set = 1; query_count->bytes_set = 1; query_count->hits = counters[0] - counter_stats->hits; query_count->bytes = counters[1] - counter_stats->bytes; if (query_count->reset) { counter_stats->hits = counters[0]; counter_stats->bytes = counters[1]; } return 0; } /** * Query a flows. * * @see rte_flow_query() * @see rte_flow_ops */ int mlx5_flow_query(struct rte_eth_dev *dev __rte_unused, struct rte_flow *flow, const struct rte_flow_action *action __rte_unused, void *data, struct rte_flow_error *error) { if (flow->cs) { int ret; ret = mlx5_flow_query_count(flow->cs, &flow->counter_stats, (struct rte_flow_query_count *)data, error); if (ret) return ret; } else { return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, "no counter found for flow"); } return 0; } #endif /** * 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 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; return 0; } /** * Convert a flow director filter to a generic flow. * * @param dev * Pointer to Ethernet device. * @param fdir_filter * Flow director filter to add. * @param attributes * Generic flow parameters structure. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_fdir_filter_convert(struct rte_eth_dev *dev, const struct rte_eth_fdir_filter *fdir_filter, struct mlx5_fdir *attributes) { struct priv *priv = dev->data->dev_private; const struct rte_eth_fdir_input *input = &fdir_filter->input; const struct rte_eth_fdir_masks *mask = &dev->data->dev_conf.fdir_conf.mask; /* Validate queue number. */ if (fdir_filter->action.rx_queue >= priv->rxqs_n) { DRV_LOG(ERR, "port %u invalid queue number %d", dev->data->port_id, fdir_filter->action.rx_queue); rte_errno = EINVAL; return -rte_errno; } attributes->attr.ingress = 1; attributes->items[0] = (struct rte_flow_item) { .type = RTE_FLOW_ITEM_TYPE_ETH, .spec = &attributes->l2, .mask = &attributes->l2_mask, }; switch (fdir_filter->action.behavior) { case RTE_ETH_FDIR_ACCEPT: attributes->actions[0] = (struct rte_flow_action){ .type = RTE_FLOW_ACTION_TYPE_QUEUE, .conf = &attributes->queue, }; break; case RTE_ETH_FDIR_REJECT: attributes->actions[0] = (struct rte_flow_action){ .type = RTE_FLOW_ACTION_TYPE_DROP, }; break; default: DRV_LOG(ERR, "port %u invalid behavior %d", dev->data->port_id, fdir_filter->action.behavior); rte_errno = ENOTSUP; return -rte_errno; } attributes->queue.index = fdir_filter->action.rx_queue; /* Handle L3. */ switch (fdir_filter->input.flow_type) { case RTE_ETH_FLOW_NONFRAG_IPV4_UDP: case RTE_ETH_FLOW_NONFRAG_IPV4_TCP: case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER: attributes->l3.ipv4.hdr = (struct ipv4_hdr){ .src_addr = input->flow.ip4_flow.src_ip, .dst_addr = input->flow.ip4_flow.dst_ip, .time_to_live = input->flow.ip4_flow.ttl, .type_of_service = input->flow.ip4_flow.tos, .next_proto_id = input->flow.ip4_flow.proto, }; attributes->l3_mask.ipv4.hdr = (struct ipv4_hdr){ .src_addr = mask->ipv4_mask.src_ip, .dst_addr = mask->ipv4_mask.dst_ip, .time_to_live = mask->ipv4_mask.ttl, .type_of_service = mask->ipv4_mask.tos, .next_proto_id = mask->ipv4_mask.proto, }; attributes->items[1] = (struct rte_flow_item){ .type = RTE_FLOW_ITEM_TYPE_IPV4, .spec = &attributes->l3, .mask = &attributes->l3_mask, }; break; case RTE_ETH_FLOW_NONFRAG_IPV6_UDP: case RTE_ETH_FLOW_NONFRAG_IPV6_TCP: case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER: attributes->l3.ipv6.hdr = (struct ipv6_hdr){ .hop_limits = input->flow.ipv6_flow.hop_limits, .proto = input->flow.ipv6_flow.proto, }; memcpy(attributes->l3.ipv6.hdr.src_addr, input->flow.ipv6_flow.src_ip, RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); memcpy(attributes->l3.ipv6.hdr.dst_addr, input->flow.ipv6_flow.dst_ip, RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); memcpy(attributes->l3_mask.ipv6.hdr.src_addr, mask->ipv6_mask.src_ip, RTE_DIM(attributes->l3_mask.ipv6.hdr.src_addr)); memcpy(attributes->l3_mask.ipv6.hdr.dst_addr, mask->ipv6_mask.dst_ip, RTE_DIM(attributes->l3_mask.ipv6.hdr.src_addr)); attributes->items[1] = (struct rte_flow_item){ .type = RTE_FLOW_ITEM_TYPE_IPV6, .spec = &attributes->l3, .mask = &attributes->l3_mask, }; break; default: DRV_LOG(ERR, "port %u invalid flow type%d", dev->data->port_id, fdir_filter->input.flow_type); rte_errno = ENOTSUP; return -rte_errno; } /* Handle L4. */ switch (fdir_filter->input.flow_type) { case RTE_ETH_FLOW_NONFRAG_IPV4_UDP: attributes->l4.udp.hdr = (struct udp_hdr){ .src_port = input->flow.udp4_flow.src_port, .dst_port = input->flow.udp4_flow.dst_port, }; attributes->l4_mask.udp.hdr = (struct udp_hdr){ .src_port = mask->src_port_mask, .dst_port = mask->dst_port_mask, }; attributes->items[2] = (struct rte_flow_item){ .type = RTE_FLOW_ITEM_TYPE_UDP, .spec = &attributes->l4, .mask = &attributes->l4_mask, }; break; case RTE_ETH_FLOW_NONFRAG_IPV4_TCP: attributes->l4.tcp.hdr = (struct tcp_hdr){ .src_port = input->flow.tcp4_flow.src_port, .dst_port = input->flow.tcp4_flow.dst_port, }; attributes->l4_mask.tcp.hdr = (struct tcp_hdr){ .src_port = mask->src_port_mask, .dst_port = mask->dst_port_mask, }; attributes->items[2] = (struct rte_flow_item){ .type = RTE_FLOW_ITEM_TYPE_TCP, .spec = &attributes->l4, .mask = &attributes->l4_mask, }; break; case RTE_ETH_FLOW_NONFRAG_IPV6_UDP: attributes->l4.udp.hdr = (struct udp_hdr){ .src_port = input->flow.udp6_flow.src_port, .dst_port = input->flow.udp6_flow.dst_port, }; attributes->l4_mask.udp.hdr = (struct udp_hdr){ .src_port = mask->src_port_mask, .dst_port = mask->dst_port_mask, }; attributes->items[2] = (struct rte_flow_item){ .type = RTE_FLOW_ITEM_TYPE_UDP, .spec = &attributes->l4, .mask = &attributes->l4_mask, }; break; case RTE_ETH_FLOW_NONFRAG_IPV6_TCP: attributes->l4.tcp.hdr = (struct tcp_hdr){ .src_port = input->flow.tcp6_flow.src_port, .dst_port = input->flow.tcp6_flow.dst_port, }; attributes->l4_mask.tcp.hdr = (struct tcp_hdr){ .src_port = mask->src_port_mask, .dst_port = mask->dst_port_mask, }; attributes->items[2] = (struct rte_flow_item){ .type = RTE_FLOW_ITEM_TYPE_TCP, .spec = &attributes->l4, .mask = &attributes->l4_mask, }; break; case RTE_ETH_FLOW_NONFRAG_IPV4_OTHER: case RTE_ETH_FLOW_NONFRAG_IPV6_OTHER: break; default: DRV_LOG(ERR, "port %u invalid flow type%d", dev->data->port_id, fdir_filter->input.flow_type); rte_errno = ENOTSUP; return -rte_errno; } return 0; } /** * Add new flow director filter and store it in list. * * @param dev * Pointer to Ethernet device. * @param fdir_filter * Flow director filter to add. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_fdir_filter_add(struct rte_eth_dev *dev, const struct rte_eth_fdir_filter *fdir_filter) { struct priv *priv = dev->data->dev_private; struct mlx5_fdir attributes = { .attr.group = 0, .l2_mask = { .dst.addr_bytes = "\x00\x00\x00\x00\x00\x00", .src.addr_bytes = "\x00\x00\x00\x00\x00\x00", .type = 0, }, }; struct mlx5_flow_parse parser = { .layer = HASH_RXQ_ETH, }; struct rte_flow_error error; struct rte_flow *flow; int ret; ret = mlx5_fdir_filter_convert(dev, fdir_filter, &attributes); if (ret) return ret; ret = mlx5_flow_convert(dev, &attributes.attr, attributes.items, attributes.actions, &error, &parser); if (ret) return ret; flow = mlx5_flow_list_create(dev, &priv->flows, &attributes.attr, attributes.items, attributes.actions, &error); if (flow) { DRV_LOG(DEBUG, "port %u FDIR created %p", dev->data->port_id, (void *)flow); return 0; } return -rte_errno; } /** * Delete specific filter. * * @param dev * Pointer to Ethernet device. * @param fdir_filter * Filter to be deleted. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_fdir_filter_delete(struct rte_eth_dev *dev, const struct rte_eth_fdir_filter *fdir_filter) { struct priv *priv = dev->data->dev_private; struct mlx5_fdir attributes = { .attr.group = 0, }; struct mlx5_flow_parse parser = { .create = 1, .layer = HASH_RXQ_ETH, }; struct rte_flow_error error; struct rte_flow *flow; unsigned int i; int ret; ret = mlx5_fdir_filter_convert(dev, fdir_filter, &attributes); if (ret) return ret; ret = mlx5_flow_convert(dev, &attributes.attr, attributes.items, attributes.actions, &error, &parser); if (ret) goto exit; /* * Special case for drop action which is only set in the * specifications when the flow is created. In this situation the * drop specification is missing. */ if (parser.drop) { struct ibv_flow_spec_action_drop *drop; drop = (void *)((uintptr_t)parser.queue[HASH_RXQ_ETH].ibv_attr + parser.queue[HASH_RXQ_ETH].offset); *drop = (struct ibv_flow_spec_action_drop){ .type = IBV_FLOW_SPEC_ACTION_DROP, .size = sizeof(struct ibv_flow_spec_action_drop), }; parser.queue[HASH_RXQ_ETH].ibv_attr->num_of_specs++; } TAILQ_FOREACH(flow, &priv->flows, next) { struct ibv_flow_attr *attr; struct ibv_spec_header *attr_h; void *spec; struct ibv_flow_attr *flow_attr; struct ibv_spec_header *flow_h; void *flow_spec; unsigned int specs_n; unsigned int queue_id = parser.drop ? HASH_RXQ_ETH : parser.layer; attr = parser.queue[queue_id].ibv_attr; flow_attr = flow->frxq[queue_id].ibv_attr; /* Compare first the attributes. */ if (!flow_attr || memcmp(attr, flow_attr, sizeof(struct ibv_flow_attr))) continue; if (attr->num_of_specs == 0) continue; spec = (void *)((uintptr_t)attr + sizeof(struct ibv_flow_attr)); flow_spec = (void *)((uintptr_t)flow_attr + sizeof(struct ibv_flow_attr)); specs_n = RTE_MIN(attr->num_of_specs, flow_attr->num_of_specs); for (i = 0; i != specs_n; ++i) { attr_h = spec; flow_h = flow_spec; if (memcmp(spec, flow_spec, RTE_MIN(attr_h->size, flow_h->size))) goto wrong_flow; spec = (void *)((uintptr_t)spec + attr_h->size); flow_spec = (void *)((uintptr_t)flow_spec + flow_h->size); } /* At this point, the flow match. */ break; wrong_flow: /* The flow does not match. */ continue; } ret = rte_errno; /* Save rte_errno before cleanup. */ if (flow) mlx5_flow_list_destroy(dev, &priv->flows, flow); exit: for (i = 0; i != hash_rxq_init_n; ++i) { if (parser.queue[i].ibv_attr) rte_free(parser.queue[i].ibv_attr); } rte_errno = ret; /* Restore rte_errno. */ return -rte_errno; } /** * Update queue for specific filter. * * @param dev * Pointer to Ethernet device. * @param fdir_filter * Filter to be updated. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_fdir_filter_update(struct rte_eth_dev *dev, const struct rte_eth_fdir_filter *fdir_filter) { int ret; ret = mlx5_fdir_filter_delete(dev, fdir_filter); if (ret) return ret; return mlx5_fdir_filter_add(dev, fdir_filter); } /** * Flush all filters. * * @param dev * Pointer to Ethernet device. */ static void mlx5_fdir_filter_flush(struct rte_eth_dev *dev) { struct priv *priv = dev->data->dev_private; mlx5_flow_list_flush(dev, &priv->flows); } /** * Get flow director information. * * @param dev * Pointer to Ethernet device. * @param[out] fdir_info * Resulting flow director information. */ static void mlx5_fdir_info_get(struct rte_eth_dev *dev, struct rte_eth_fdir_info *fdir_info) { struct rte_eth_fdir_masks *mask = &dev->data->dev_conf.fdir_conf.mask; fdir_info->mode = dev->data->dev_conf.fdir_conf.mode; fdir_info->guarant_spc = 0; rte_memcpy(&fdir_info->mask, mask, sizeof(fdir_info->mask)); fdir_info->max_flexpayload = 0; fdir_info->flow_types_mask[0] = 0; fdir_info->flex_payload_unit = 0; fdir_info->max_flex_payload_segment_num = 0; fdir_info->flex_payload_limit = 0; memset(&fdir_info->flex_conf, 0, sizeof(fdir_info->flex_conf)); } /** * Deal with flow director operations. * * @param dev * Pointer to Ethernet device. * @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. */ static int mlx5_fdir_ctrl_func(struct rte_eth_dev *dev, enum rte_filter_op filter_op, void *arg) { enum rte_fdir_mode fdir_mode = dev->data->dev_conf.fdir_conf.mode; if (filter_op == RTE_ETH_FILTER_NOP) return 0; if (fdir_mode != RTE_FDIR_MODE_PERFECT && fdir_mode != RTE_FDIR_MODE_PERFECT_MAC_VLAN) { DRV_LOG(ERR, "port %u flow director mode %d not supported", dev->data->port_id, fdir_mode); rte_errno = EINVAL; return -rte_errno; } switch (filter_op) { case RTE_ETH_FILTER_ADD: return mlx5_fdir_filter_add(dev, arg); case RTE_ETH_FILTER_UPDATE: return mlx5_fdir_filter_update(dev, arg); case RTE_ETH_FILTER_DELETE: return mlx5_fdir_filter_delete(dev, arg); case RTE_ETH_FILTER_FLUSH: mlx5_fdir_filter_flush(dev); break; case RTE_ETH_FILTER_INFO: mlx5_fdir_info_get(dev, arg); break; default: DRV_LOG(DEBUG, "port %u unknown operation %u", dev->data->port_id, filter_op); rte_errno = EINVAL; return -rte_errno; } 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; case RTE_ETH_FILTER_FDIR: return mlx5_fdir_ctrl_func(dev, filter_op, arg); 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; } /** * Detect number of Verbs flow priorities supported. * * @param dev * Pointer to Ethernet device. * * @return * number of supported Verbs flow priority. */ unsigned int mlx5_get_max_verbs_prio(struct rte_eth_dev *dev) { struct priv *priv = dev->data->dev_private; unsigned int verb_priorities = MLX5_VERBS_FLOW_PRIO_8; struct { struct ibv_flow_attr attr; struct ibv_flow_spec_eth eth; struct ibv_flow_spec_action_drop drop; } flow_attr = { .attr = { .num_of_specs = 2, }, .eth = { .type = IBV_FLOW_SPEC_ETH, .size = sizeof(struct ibv_flow_spec_eth), }, .drop = { .size = sizeof(struct ibv_flow_spec_action_drop), .type = IBV_FLOW_SPEC_ACTION_DROP, }, }; struct ibv_flow *flow; do { flow_attr.attr.priority = verb_priorities - 1; flow = mlx5_glue->create_flow(priv->flow_drop_queue->qp, &flow_attr.attr); if (flow) { claim_zero(mlx5_glue->destroy_flow(flow)); /* Try more priorities. */ verb_priorities *= 2; } else { /* Failed, restore last right number. */ verb_priorities /= 2; break; } } while (1); DRV_LOG(DEBUG, "port %u Verbs flow priorities: %d," " user flow priorities: %d", dev->data->port_id, verb_priorities, MLX5_CTRL_FLOW_PRIORITY); return verb_priorities; }