/*- * BSD LICENSE * * Copyright 2016 6WIND S.A. * Copyright 2016 Mellanox. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * Neither the name of 6WIND S.A. nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #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 "mlx5.h" #include "mlx5_defs.h" #include "mlx5_prm.h" /* Define minimal priority for control plane flows. */ #define MLX5_CTRL_FLOW_PRIORITY 4 /* Internet Protocol versions. */ #define MLX5_IPV4 4 #define MLX5_IPV6 6 #ifndef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT struct ibv_counter_set_init_attr { int dummy; }; struct ibv_flow_spec_counter_action { int dummy; }; struct ibv_counter_set { int dummy; }; static inline int ibv_destroy_counter_set(struct ibv_counter_set *cs) { (void)cs; return -ENOTSUP; } #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 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); 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, }; /* 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 = 1, .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 = 1, .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 = 2, .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 = 1, .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 = 1, .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 = 2, .ip_version = MLX5_IPV6, }, [HASH_RXQ_ETH] = { .hash_fields = 0, .dpdk_rss_hf = 0, .flow_priority = 3, }, }; /* 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. */ uint16_t queues_n; /**< Number of entries in queue[]. */ uint16_t (*queues)[]; /**< Queues indexes to use. */ struct rte_eth_rss_conf rss_conf; /**< RSS configuration */ uint8_t rss_key[40]; /**< copy of the RSS key. */ struct ibv_counter_set *cs; /**< Holds the counters for the rule. */ struct mlx5_flow_counter_stats counter_stats;/**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_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, }, .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), .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), .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), .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_VXLAN] = { .items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH), .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), }, }; /** Structure to pass to the conversion function. */ struct mlx5_flow_parse { uint32_t inner; /**< Set once VXLAN 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. */ uint16_t queues[RTE_MAX_QUEUES_PER_PORT]; /**< Queues indexes to use. */ uint16_t queues_n; /**< Number of entries in queue[]. */ struct rte_eth_rss_conf rss_conf; /**< RSS configuration */ uint8_t rss_key[40]; /**< copy of the RSS key. */ enum hash_rxq_type layer; /**< Last pattern layer detected. */ 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. */ } 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; } /** * Copy the RSS configuration from the user ones, of the rss_conf is null, * uses the driver one. * * @param parser * Internal parser structure. * @param rss_conf * User RSS configuration to save. * * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ static int mlx5_flow_convert_rss_conf(struct mlx5_flow_parse *parser, const struct rte_eth_rss_conf *rss_conf) { /* * This function is also called at the beginning of * mlx5_flow_convert_actions() to initialize the parser with the * device default RSS configuration. */ if (rss_conf) { if (rss_conf->rss_hf & MLX5_RSS_HF_MASK) { rte_errno = EINVAL; return -rte_errno; } if (rss_conf->rss_key_len != 40) { rte_errno = EINVAL; return -rte_errno; } if (rss_conf->rss_key_len && rss_conf->rss_key) { parser->rss_conf.rss_key_len = rss_conf->rss_key_len; memcpy(parser->rss_key, rss_conf->rss_key, rss_conf->rss_key_len); parser->rss_conf.rss_key = parser->rss_key; } parser->rss_conf.rss_hf = rss_conf->rss_hf; } return 0; } /** * 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->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) { struct priv *priv = dev->data->dev_private; int ret; /* * Add default RSS configuration necessary for Verbs to create QP even * if no RSS is necessary. */ ret = mlx5_flow_convert_rss_conf(parser, (const struct rte_eth_rss_conf *) &priv->rss_conf); if (ret) return ret; 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) { 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; uint16_t n; uint16_t found = 0; if (!queue || (queue->index > (priv->rxqs_n - 1))) goto exit_action_not_supported; for (n = 0; n < parser->queues_n; ++n) { if (parser->queues[n] == queue->index) { found = 1; break; } } if (parser->queues_n > 1 && !found) { rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, actions, "queue action not in RSS queues"); return -rte_errno; } if (!found) { parser->queues_n = 1; parser->queues[0] = queue->index; } } else if (actions->type == RTE_FLOW_ACTION_TYPE_RSS) { const struct rte_flow_action_rss *rss = (const struct rte_flow_action_rss *) actions->conf; uint16_t n; if (!rss || !rss->num) { rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, actions, "no valid queues"); return -rte_errno; } if (parser->queues_n == 1) { uint16_t found = 0; assert(parser->queues_n); for (n = 0; n < rss->num; ++n) { if (parser->queues[0] == rss->queue[n]) { found = 1; break; } } if (!found) { rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION, actions, "queue action not in RSS" " queues"); return -rte_errno; } } if (rss->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->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; } } for (n = 0; n < rss->num; ++n) parser->queues[n] = rss->queue[n]; parser->queues_n = rss->num; if (mlx5_flow_convert_rss_conf(parser, rss->rss_conf)) { rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, actions, "wrong RSS configuration"); return -rte_errno; } } 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 (!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) { parser->mark = 1; } else if (actions->type == RTE_FLOW_ACTION_TYPE_COUNT && priv->counter_set_supported) { parser->count = 1; } else { goto exit_action_not_supported; } } if (parser->drop && parser->mark) parser->mark = 0; if (!parser->queues_n && !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; } /** * 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(const struct rte_flow_item items[], 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 = 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) 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 (items->type == RTE_FLOW_ITEM_TYPE_VXLAN) { if (parser->inner) { rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, items, "cannot recognize multiple" " VXLAN encapsulations"); return -rte_errno; } parser->inner = IBV_FLOW_SPEC_INNER; } 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; } } 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[in, out] parser * Internal parser structure. * @param attr * User flow attribute. */ static void mlx5_flow_update_priority(struct mlx5_flow_parse *parser, const struct rte_flow_attr *attr) { unsigned int i; if (parser->drop) { parser->queue[HASH_RXQ_ETH].ibv_attr->priority = attr->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) { parser->queue[i].ibv_attr->priority = attr->priority + hash_rxq_init[i].flow_priority - (parser->inner ? 1 : 0); } } } /** * Finalise verbs flow attributes. * * @param[in, out] parser * Internal parser structure. */ static void mlx5_flow_convert_finalise(struct mlx5_flow_parse *parser) { const unsigned int ipv4 = hash_rxq_init[parser->layer].ip_version == MLX5_IPV4; const enum hash_rxq_type hmin = ipv4 ? HASH_RXQ_TCPV4 : HASH_RXQ_TCPV6; const enum hash_rxq_type hmax = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6; const enum hash_rxq_type ohmin = ipv4 ? HASH_RXQ_TCPV6 : HASH_RXQ_TCPV4; const enum hash_rxq_type ohmax = ipv4 ? HASH_RXQ_IPV6 : HASH_RXQ_IPV4; const enum hash_rxq_type ip = ipv4 ? HASH_RXQ_IPV4 : HASH_RXQ_IPV6; unsigned int i; /* Remove any other flow not matching the pattern. */ if (parser->queues_n == 1 && !parser->rss_conf.rss_hf) { for (i = 0; i != hash_rxq_init_n; ++i) { if (i == HASH_RXQ_ETH) continue; rte_free(parser->queue[i].ibv_attr); parser->queue[i].ibv_attr = NULL; } return; } if (parser->layer == HASH_RXQ_ETH) { goto fill; } else { /* * This layer becomes useless as the pattern define under * layers. */ rte_free(parser->queue[HASH_RXQ_ETH].ibv_attr); parser->queue[HASH_RXQ_ETH].ibv_attr = NULL; } /* Remove opposite kind of layer e.g. IPv6 if the pattern is IPv4. */ for (i = ohmin; i != (ohmax + 1); ++i) { if (!parser->queue[i].ibv_attr) continue; rte_free(parser->queue[i].ibv_attr); parser->queue[i].ibv_attr = NULL; } /* Remove impossible flow according to the RSS configuration. */ if (hash_rxq_init[parser->layer].dpdk_rss_hf & parser->rss_conf.rss_hf) { /* Remove any other flow. */ for (i = hmin; i != (hmax + 1); ++i) { if ((i == parser->layer) || (!parser->queue[i].ibv_attr)) continue; rte_free(parser->queue[i].ibv_attr); parser->queue[i].ibv_attr = NULL; } } else if (!parser->queue[ip].ibv_attr) { /* no RSS possible with the current configuration. */ parser->queues_n = 1; return; } fill: /* * 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; } specs; void *dst; uint16_t size; if (i == parser->layer) continue; if (parser->layer == HASH_RXQ_ETH) { 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 = IBV_FLOW_SPEC_IPV4_EXT, .size = size, }; } else { size = sizeof(struct ibv_flow_spec_ipv6); specs.ipv6 = (struct ibv_flow_spec_ipv6){ .type = 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 = ((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; } } } /** * 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(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; if (!(parser->rss_conf.rss_hf & hash_rxq_init[i].dpdk_rss_hf) && (i != HASH_RXQ_ETH)) continue; 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; for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) { struct mlx5_flow_data data = { .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->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; } /* * Last step. Complete missing specification to reach the RSS * configuration. */ if (!parser->drop) mlx5_flow_convert_finalise(parser); mlx5_flow_update_priority(parser, attr); 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; /* Specification must be the same l3 type or none. */ if (parser->layer == HASH_RXQ_ETH || (hash_rxq_init[parser->layer].ip_version == hash_rxq_init[i].ip_version) || (hash_rxq_init[i].ip_version == 0)) { 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, }; /* Don't update layer for the inner pattern. */ if (!parser->inner) 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); 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; } return 0; } error: return rte_flow_error_set(data->error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM, item, "VLAN cannot be empty"); } /** * 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) { 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, }; /* Don't update layer for the inner pattern. */ if (!parser->inner) 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) { 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, }; /* Don't update layer for the inner pattern. */ if (!parser->inner) 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, }; /* Don't update layer for the inner pattern. */ if (!parser->inner) { 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, }; /* Don't update layer for the inner pattern. */ if (!parser->inner) { 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; 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. */ if (!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 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 = ibv_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 = ibv_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(ibv_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(ibv_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) { uint64_t hash_fields; if (!parser->queue[i].ibv_attr) continue; flow->frxq[i].ibv_attr = parser->queue[i].ibv_attr; parser->queue[i].ibv_attr = NULL; hash_fields = hash_rxq_init[i].hash_fields; if (!dev->data->dev_started) continue; flow->frxq[i].hrxq = mlx5_hrxq_get(dev, parser->rss_conf.rss_key, parser->rss_conf.rss_key_len, hash_fields, parser->queues, parser->queues_n); if (flow->frxq[i].hrxq) continue; flow->frxq[i].hrxq = mlx5_hrxq_new(dev, parser->rss_conf.rss_key, parser->rss_conf.rss_key_len, hash_fields, parser->queues, parser->queues_n); if (!flow->frxq[i].hrxq) { return rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE, NULL, "cannot create hash rxq"); } } return 0; } /** * 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 = ibv_create_flow(flow->frxq[i].hrxq->qp, flow->frxq[i].ibv_attr); 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; DRV_LOG(DEBUG, "port %u %p type %d QP %p ibv_flow %p", dev->data->port_id, (void *)flow, i, (void *)flow->frxq[i].hrxq, (void *)flow->frxq[i].ibv_flow); } if (!flows_n) { rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_HANDLE, NULL, "internal error in flow creation"); goto error; } for (i = 0; i != parser->queues_n; ++i) { struct mlx5_rxq_data *q = (*priv->rxqs)[parser->queues[i]]; q->mark |= parser->mark; } 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(ibv_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(ibv_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.queues_n * 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 queues configuration. */ flow->queues = (uint16_t (*)[])(flow + 1); memcpy(flow->queues, parser.queues, parser.queues_n * sizeof(uint16_t)); flow->queues_n = parser.queues_n; flow->mark = parser.mark; /* Copy RSS configuration. */ flow->rss_conf = parser.rss_conf; flow->rss_conf.rss_key = flow->rss_key; memcpy(flow->rss_key, parser.rss_key, parser.rss_conf.rss_key_len); /* 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: 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 || !flow->mark) goto free; for (i = 0; i != flow->queues_n; ++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(ibv_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(ibv_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(ibv_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 = ibv_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 = ibv_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 = ibv_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 = ibv_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(ibv_destroy_qp(fdq->qp)); if (fdq->ind_table) claim_zero(ibv_destroy_rwq_ind_table(fdq->ind_table)); if (fdq->wq) claim_zero(ibv_destroy_wq(fdq->wq)); if (fdq->cq) claim_zero(ibv_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(ibv_destroy_qp(fdq->qp)); if (fdq->ind_table) claim_zero(ibv_destroy_rwq_ind_table(fdq->ind_table)); if (fdq->wq) claim_zero(ibv_destroy_wq(fdq->wq)); if (fdq->cq) claim_zero(ibv_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; TAILQ_FOREACH_REVERSE(flow, list, mlx5_flows, next) { unsigned int i; struct mlx5_ind_table_ibv *ind_tbl = NULL; if (flow->drop) { if (!flow->frxq[HASH_RXQ_ETH].ibv_flow) continue; claim_zero(ibv_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(ibv_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); } } /** * 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 = ibv_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.rss_key, flow->rss_conf.rss_key_len, hash_rxq_init[i].hash_fields, (*flow->queues), flow->queues_n); if (flow->frxq[i].hrxq) goto flow_create; flow->frxq[i].hrxq = mlx5_hrxq_new(dev, flow->rss_conf.rss_key, flow->rss_conf.rss_key_len, hash_rxq_init[i].hash_fields, (*flow->queues), flow->queues_n); if (!flow->frxq[i].hrxq) { DRV_LOG(DEBUG, "port %u flow %p cannot be applied", dev->data->port_id, (void *)flow); rte_errno = EINVAL; return -rte_errno; } flow_create: flow->frxq[i].ibv_flow = ibv_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 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); } if (!flow->mark) continue; for (i = 0; i != flow->queues_n; ++i) (*priv->rxqs)[(*flow->queues)[i]]->mark = 1; } 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, }, }; struct rte_flow_action actions[] = { { .type = RTE_FLOW_ACTION_TYPE_RSS, }, { .type = RTE_FLOW_ACTION_TYPE_END, }, }; struct rte_flow *flow; struct rte_flow_error error; unsigned int i; union { struct rte_flow_action_rss rss; struct { const struct rte_eth_rss_conf *rss_conf; uint16_t num; uint16_t queue[RTE_MAX_QUEUES_PER_PORT]; } local; } action_rss; if (!priv->reta_idx_n) { rte_errno = EINVAL; return -rte_errno; } for (i = 0; i != priv->reta_idx_n; ++i) action_rss.local.queue[i] = (*priv->reta_idx)[i]; action_rss.local.rss_conf = &priv->rss_conf; action_rss.local.num = priv->reta_idx_n; actions[0].conf = (const void *)&action_rss.rss; 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 = ibv_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, enum rte_flow_action_type 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; }