X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fmlx5%2Fmlx5_flow.c;h=f32dfdd3fa59f85257d3c2b6cd84c3e1bc015aed;hb=0384f21dffc9081d1ae30f0a6e49926bfc4be85d;hp=4fdefa00dbafd5d00a084328654c426379ce0c63;hpb=0d356350faf9440f731916cac1d5d79572b8410f;p=dpdk.git diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c index 4fdefa00db..f32dfdd3fa 100644 --- a/drivers/net/mlx5/mlx5_flow.c +++ b/drivers/net/mlx5/mlx5_flow.c @@ -31,11 +31,1933 @@ * 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 "mlx5.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; + +static int +mlx5_flow_create_eth(const struct rte_flow_item *item, + const void *default_mask, + void *data); + +static int +mlx5_flow_create_vlan(const struct rte_flow_item *item, + const void *default_mask, + void *data); + +static int +mlx5_flow_create_ipv4(const struct rte_flow_item *item, + const void *default_mask, + void *data); + +static int +mlx5_flow_create_ipv6(const struct rte_flow_item *item, + const void *default_mask, + void *data); + +static int +mlx5_flow_create_udp(const struct rte_flow_item *item, + const void *default_mask, + void *data); + +static int +mlx5_flow_create_tcp(const struct rte_flow_item *item, + const void *default_mask, + void *data); + +static int +mlx5_flow_create_vxlan(const struct rte_flow_item *item, + const void *default_mask, + void *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 priv *priv, 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 = 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. */ + 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, negative value otherwise. + */ + int (*convert)(const struct rte_flow_item *item, + const void *default_mask, + void *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 */ + union { + 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)]; + struct { + struct ibv_flow_attr *ibv_attr; + /**< Pointer to Verbs attributes. */ + unsigned int offset; + /**< Current position or total size of the attribute. */ + } drop_q; + }; +}; + +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_udp udp; + struct rte_flow_item_tcp tcp; + } l4; + struct rte_flow_action_queue queue; +}; + +/* Verbs specification header. */ +struct ibv_spec_header { + enum ibv_flow_spec_type type; + uint16_t size; +}; + +/** + * Check support for a given item. + * + * @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. + */ +static int +mlx5_flow_item_validate(const struct rte_flow_item *item, + const uint8_t *mask, unsigned int size) +{ + int ret = 0; + + if (!item->spec && (item->mask || item->last)) + return -1; + if (item->spec && !item->mask) { + unsigned int i; + const uint8_t *spec = item->spec; + + for (i = 0; i < size; ++i) + if ((spec[i] | mask[i]) != mask[i]) + return -1; + } + if (item->last && !item->mask) { + unsigned int i; + const uint8_t *spec = item->last; + + for (i = 0; i < size; ++i) + if ((spec[i] | mask[i]) != mask[i]) + return -1; + } + if (item->mask) { + unsigned int i; + const uint8_t *spec = item->mask; + + for (i = 0; i < size; ++i) + if ((spec[i] | mask[i]) != mask[i]) + return -1; + } + if (item->spec && item->last) { + uint8_t spec[size]; + uint8_t last[size]; + const uint8_t *apply = mask; + unsigned int i; + + if (item->mask) + apply = item->mask; + for (i = 0; i < size; ++i) { + spec[i] = ((const uint8_t *)item->spec)[i] & apply[i]; + last[i] = ((const uint8_t *)item->last)[i] & apply[i]; + } + ret = memcmp(spec, last, size); + } + return ret; +} + +/** + * Copy the RSS configuration from the user ones. + * + * @param priv + * Pointer to private structure. + * @param parser + * Internal parser structure. + * @param rss_conf + * User RSS configuration to save. + * + * @return + * 0 on success, errno value on failure. + */ +static int +priv_flow_convert_rss_conf(struct priv *priv, + struct mlx5_flow_parse *parser, + const struct rte_eth_rss_conf *rss_conf) +{ + const struct rte_eth_rss_conf *rss = + rss_conf ? rss_conf : &priv->rss_conf; + + if (rss->rss_key_len > 40) + return EINVAL; + parser->rss_conf.rss_key_len = rss->rss_key_len; + parser->rss_conf.rss_hf = rss->rss_hf; + memcpy(parser->rss_key, rss->rss_key, rss->rss_key_len); + parser->rss_conf.rss_key = parser->rss_key; + return 0; +} + +/** + * Extract attribute to the parser. + * + * @param priv + * Pointer to private structure. + * @param[in] attr + * Flow rule attributes. + * @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 +priv_flow_convert_attributes(struct priv *priv, + const struct rte_flow_attr *attr, + struct rte_flow_error *error, + struct mlx5_flow_parse *parser) +{ + (void)priv; + (void)parser; + 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 priv + * Pointer to private structure. + * @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 +priv_flow_convert_actions(struct priv *priv, + const struct rte_flow_action actions[], + struct rte_flow_error *error, + struct mlx5_flow_parse *parser) +{ + /* + * Add default RSS configuration necessary for Verbs to create QP even + * if no RSS is necessary. + */ + priv_flow_convert_rss_conf(priv, parser, + (const struct rte_eth_rss_conf *) + &priv->rss_conf); + 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; + } + } + 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 (priv_flow_convert_rss_conf(priv, 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 priv + * Pointer to private structure. + * @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 +priv_flow_convert_items_validate(struct priv *priv, + 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; + + (void)priv; + /* Initialise the offsets to start after verbs attribute. */ + if (parser->drop) { + parser->drop_q.offset = sizeof(struct ibv_flow_attr); + } else { + 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; + int err; + + 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) + goto exit_item_not_supported; + cur_item = token; + err = mlx5_flow_item_validate(items, + (const uint8_t *)cur_item->mask, + cur_item->mask_sz); + if (err) + 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->drop_q.offset += cur_item->dst_sz; + } else if (parser->queues_n == 1) { + 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->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); + + if (parser->drop) { + parser->drop_q.offset += size; + } else { + for (i = 0; i != hash_rxq_init_n; ++i) + parser->queue[i].offset += size; + } + } + return 0; +exit_item_not_supported: + rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_ITEM, + items, "item not supported"); + return -rte_errno; +} + +/** + * Allocate memory space to store verbs flow attributes. + * + * @param priv + * Pointer to private structure. + * @param[in] priority + * Flow priority. + * @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. + */ +static struct ibv_flow_attr* +priv_flow_convert_allocate(struct priv *priv, + unsigned int priority, + unsigned int size, + struct rte_flow_error *error) +{ + struct ibv_flow_attr *ibv_attr; + + (void)priv; + 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; + } + ibv_attr->priority = priority; + return ibv_attr; +} + +/** + * Finalise verbs flow attributes. + * + * @param priv + * Pointer to private structure. + * @param[in, out] parser + * Internal parser structure. + */ +static void +priv_flow_convert_finalise(struct priv *priv, 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; + + (void)priv; + 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 priv + * Pointer to private structure. + * @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 +priv_flow_convert(struct priv *priv, + 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 = priv_flow_convert_attributes(priv, attr, error, parser); + if (ret) + return ret; + ret = priv_flow_convert_actions(priv, actions, error, parser); + if (ret) + return ret; + ret = priv_flow_convert_items_validate(priv, items, error, parser); + if (ret) + return ret; + priv_flow_convert_finalise(priv, parser); + /* + * Second step. + * Allocate the memory space to store verbs specifications. + */ + if (parser->drop) { + parser->drop_q.ibv_attr = + priv_flow_convert_allocate(priv, attr->priority, + parser->drop_q.offset, + error); + if (!parser->drop_q.ibv_attr) + return ENOMEM; + parser->drop_q.offset = sizeof(struct ibv_flow_attr); + } else if (parser->queues_n == 1) { + unsigned int priority = + attr->priority + + hash_rxq_init[HASH_RXQ_ETH].flow_priority; + unsigned int offset = parser->queue[HASH_RXQ_ETH].offset; + + parser->queue[HASH_RXQ_ETH].ibv_attr = + priv_flow_convert_allocate(priv, priority, + offset, error); + if (!parser->queue[HASH_RXQ_ETH].ibv_attr) + return ENOMEM; + parser->queue[HASH_RXQ_ETH].offset = + sizeof(struct ibv_flow_attr); + } else { + for (i = 0; i != hash_rxq_init_n; ++i) { + unsigned int priority = + attr->priority + + hash_rxq_init[i].flow_priority; + 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 = + priv_flow_convert_allocate(priv, priority, + 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) { + 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), + parser); + if (ret) { + rte_flow_error_set(error, ret, + RTE_FLOW_ERROR_TYPE_ITEM, + items, "item not supported"); + goto exit_free; + } + } + if (parser->mark) + mlx5_flow_create_flag_mark(parser, parser->mark_id); + if (parser->count && parser->create) { + mlx5_flow_create_count(priv, parser); + if (!parser->cs) + goto exit_count_error; + } + /* + * Last step. Complete missing specification to reach the RSS + * configuration. + */ + if (parser->drop) { + /* + * Drop queue priority needs to be adjusted to + * their most specific layer priority. + */ + parser->drop_q.ibv_attr->priority = + attr->priority + + hash_rxq_init[parser->layer].flow_priority; + } else if (parser->queues_n > 1) { + priv_flow_convert_finalise(priv, parser); + } else { + /* + * Action queue have their priority overridden with + * Ethernet priority, this priority needs to be adjusted to + * their most specific layer priority. + */ + parser->queue[HASH_RXQ_ETH].ibv_attr->priority = + attr->priority + + hash_rxq_init[parser->layer].flow_priority; + } +exit_free: + /* Only verification is expected, all resources should be released. */ + if (!parser->create) { + if (parser->drop) { + rte_free(parser->drop_q.ibv_attr); + parser->drop_q.ibv_attr = NULL; + } + 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, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, + NULL, "cannot allocate verbs spec attributes."); + return ret; +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; + + if (parser->drop) { + dst = (void *)((uintptr_t)parser->drop_q.ibv_attr + + parser->drop_q.offset); + memcpy(dst, src, size); + ++parser->drop_q.ibv_attr->num_of_specs; + parser->drop_q.offset += size; + return; + } + 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. + */ +static int +mlx5_flow_create_eth(const struct rte_flow_item *item, + const void *default_mask, + void *data) +{ + const struct rte_flow_item_eth *spec = item->spec; + const struct rte_flow_item_eth *mask = item->mask; + struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; + 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. + */ +static int +mlx5_flow_create_vlan(const struct rte_flow_item *item, + const void *default_mask, + void *data) +{ + const struct rte_flow_item_vlan *spec = item->spec; + const struct rte_flow_item_vlan *mask = item->mask; + struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; + 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; + + if (parser->drop) { + eth = (void *)((uintptr_t)parser->drop_q.ibv_attr + + parser->drop_q.offset - eth_size); + eth->val.vlan_tag = spec->tci; + eth->mask.vlan_tag = mask->tci; + eth->val.vlan_tag &= eth->mask.vlan_tag; + return 0; + } + 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; + } + } + return 0; +} + +/** + * 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. + */ +static int +mlx5_flow_create_ipv4(const struct rte_flow_item *item, + const void *default_mask, + void *data) +{ + const struct rte_flow_item_ipv4 *spec = item->spec; + const struct rte_flow_item_ipv4 *mask = item->mask; + struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; + 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. + */ +static int +mlx5_flow_create_ipv6(const struct rte_flow_item *item, + const void *default_mask, + void *data) +{ + const struct rte_flow_item_ipv6 *spec = item->spec; + const struct rte_flow_item_ipv6 *mask = item->mask; + struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; + 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; + + 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)); + ipv6.mask.flow_label = mask->hdr.vtc_flow; + 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.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. + */ +static int +mlx5_flow_create_udp(const struct rte_flow_item *item, + const void *default_mask, + void *data) +{ + const struct rte_flow_item_udp *spec = item->spec; + const struct rte_flow_item_udp *mask = item->mask; + struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; + 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. + */ +static int +mlx5_flow_create_tcp(const struct rte_flow_item *item, + const void *default_mask, + void *data) +{ + const struct rte_flow_item_tcp *spec = item->spec; + const struct rte_flow_item_tcp *mask = item->mask; + struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; + 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. + */ +static int +mlx5_flow_create_vxlan(const struct rte_flow_item *item, + const void *default_mask, + void *data) +{ + const struct rte_flow_item_vxlan *spec = item->spec; + const struct rte_flow_item_vxlan *mask = item->mask; + struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; + 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 EINVAL; + 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. + */ +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 priv + * Pointer to private structure. + * @param parser + * Pointer to MLX5 flow parser structure. + * + * @return + * 0 on success, errno value on failure. + */ +static int +mlx5_flow_create_count(struct priv *priv __rte_unused, + struct mlx5_flow_parse *parser __rte_unused) +{ +#ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT + 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) + return EINVAL; + 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 priv + * Pointer to private structure. + * @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, errno value on failure. + */ +static int +priv_flow_create_action_queue_drop(struct priv *priv, + struct mlx5_flow_parse *parser, + struct rte_flow *flow, + struct rte_flow_error *error) +{ + struct ibv_flow_spec_action_drop *drop; + unsigned int size = sizeof(struct ibv_flow_spec_action_drop); + int err = 0; + + assert(priv->pd); + assert(priv->ctx); + flow->drop = 1; + drop = (void *)((uintptr_t)parser->drop_q.ibv_attr + + parser->drop_q.offset); + *drop = (struct ibv_flow_spec_action_drop){ + .type = IBV_FLOW_SPEC_ACTION_DROP, + .size = size, + }; + ++parser->drop_q.ibv_attr->num_of_specs; + parser->drop_q.offset += size; + flow->drxq.ibv_attr = parser->drop_q.ibv_attr; + if (parser->count) + flow->cs = parser->cs; + if (!priv->dev->data->dev_started) + return 0; + parser->drop_q.ibv_attr = NULL; + flow->drxq.ibv_flow = ibv_create_flow(priv->flow_drop_queue->qp, + flow->drxq.ibv_attr); + if (!flow->drxq.ibv_flow) { + rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE, + NULL, "flow rule creation failure"); + err = ENOMEM; + goto error; + } + return 0; +error: + assert(flow); + if (flow->drxq.ibv_flow) { + claim_zero(ibv_destroy_flow(flow->drxq.ibv_flow)); + flow->drxq.ibv_flow = NULL; + } + if (flow->drxq.ibv_attr) { + rte_free(flow->drxq.ibv_attr); + flow->drxq.ibv_attr = NULL; + } + if (flow->cs) { + claim_zero(ibv_destroy_counter_set(flow->cs)); + flow->cs = NULL; + parser->cs = NULL; + } + return err; +} + +/** + * Create hash Rx queues when RSS is enabled. + * + * @param priv + * Pointer to private structure. + * @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 errno value otherwise and rte_errno is set. + */ +static int +priv_flow_create_action_queue_rss(struct priv *priv, + 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 (!priv->dev->data->dev_started) + continue; + flow->frxq[i].hrxq = + mlx5_priv_hrxq_get(priv, + 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_priv_hrxq_new(priv, + parser->rss_conf.rss_key, + parser->rss_conf.rss_key_len, + hash_fields, + parser->queues, + parser->queues_n); + if (!flow->frxq[i].hrxq) { + rte_flow_error_set(error, ENOMEM, + RTE_FLOW_ERROR_TYPE_HANDLE, + NULL, "cannot create hash rxq"); + return ENOMEM; + } + } + return 0; +} + +/** + * Complete flow rule creation. + * + * @param priv + * Pointer to private structure. + * @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 errno value otherwise and rte_errno is set. + */ +static int +priv_flow_create_action_queue(struct priv *priv, + struct mlx5_flow_parse *parser, + struct rte_flow *flow, + struct rte_flow_error *error) +{ + int err = 0; + unsigned int i; + + assert(priv->pd); + assert(priv->ctx); + assert(!parser->drop); + err = priv_flow_create_action_queue_rss(priv, parser, flow, error); + if (err) + goto error; + if (parser->count) + flow->cs = parser->cs; + if (!priv->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"); + err = ENOMEM; + goto error; + } + DEBUG("%p type %d QP %p ibv_flow %p", + (void *)flow, i, + (void *)flow->frxq[i].hrxq, + (void *)flow->frxq[i].ibv_flow); + } + 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: + 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_priv_hrxq_release(priv, 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; + } + return err; +} + +/** + * Convert a flow. + * + * @param priv + * Pointer to private structure. + * @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. + */ +static struct rte_flow * +priv_flow_create(struct priv *priv, + 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 err; + + err = priv_flow_convert(priv, attr, items, actions, error, &parser); + if (err) + 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) + err = priv_flow_create_action_queue_drop(priv, &parser, flow, + error); + else + err = priv_flow_create_action_queue(priv, &parser, flow, error); + if (err) + goto exit; + TAILQ_INSERT_TAIL(list, flow, next); + DEBUG("Flow created %p", (void *)flow); + return flow; +exit: + if (parser.drop) { + rte_free(parser.drop_q.ibv_attr); + } else { + 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. @@ -50,15 +1972,14 @@ mlx5_flow_validate(struct rte_eth_dev *dev, const struct rte_flow_action actions[], struct rte_flow_error *error) { - (void)dev; - (void)attr; - (void)items; - (void)actions; - (void)error; - rte_flow_error_set(error, ENOTSUP, - RTE_FLOW_ERROR_TYPE_UNSPECIFIED, - NULL, "not implemented yet"); - return -rte_errno; + struct priv *priv = dev->data->dev_private; + int ret; + struct mlx5_flow_parse parser = { .create = 0, }; + + priv_lock(priv); + ret = priv_flow_convert(priv, attr, items, actions, error, &parser); + priv_unlock(priv); + return ret; } /** @@ -74,15 +1995,466 @@ mlx5_flow_create(struct rte_eth_dev *dev, const struct rte_flow_action actions[], struct rte_flow_error *error) { - (void)dev; - (void)attr; - (void)items; - (void)actions; - (void)error; - rte_flow_error_set(error, ENOTSUP, - RTE_FLOW_ERROR_TYPE_UNSPECIFIED, - NULL, "not implemented yet"); - return NULL; + struct priv *priv = dev->data->dev_private; + struct rte_flow *flow; + + priv_lock(priv); + flow = priv_flow_create(priv, &priv->flows, attr, items, actions, + error); + priv_unlock(priv); + return flow; +} + +/** + * Destroy a flow. + * + * @param priv + * Pointer to private structure. + * @param list + * Pointer to a TAILQ flow list. + * @param[in] flow + * Flow to destroy. + */ +static void +priv_flow_destroy(struct priv *priv, + struct mlx5_flows *list, + struct rte_flow *flow) +{ + 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->drxq.ibv_flow) + claim_zero(ibv_destroy_flow(flow->drxq.ibv_flow)); + rte_free(flow->drxq.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_priv_hrxq_release(priv, 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); + DEBUG("Flow destroyed %p", (void *)flow); + rte_free(flow); +} + +/** + * Destroy all flows. + * + * @param priv + * Pointer to private structure. + * @param list + * Pointer to a TAILQ flow list. + */ +void +priv_flow_flush(struct priv *priv, struct mlx5_flows *list) +{ + while (!TAILQ_EMPTY(list)) { + struct rte_flow *flow; + + flow = TAILQ_FIRST(list); + priv_flow_destroy(priv, list, flow); + } +} + +/** + * Create drop queue. + * + * @param priv + * Pointer to private structure. + * + * @return + * 0 on success. + */ +int +priv_flow_create_drop_queue(struct priv *priv) +{ + struct mlx5_hrxq_drop *fdq = NULL; + + assert(priv->pd); + assert(priv->ctx); + fdq = rte_calloc(__func__, 1, sizeof(*fdq), 0); + if (!fdq) { + WARN("cannot allocate memory for drop queue"); + goto error; + } + fdq->cq = ibv_create_cq(priv->ctx, 1, NULL, NULL, 0); + if (!fdq->cq) { + WARN("cannot allocate CQ for drop queue"); + 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) { + WARN("cannot allocate WQ for drop queue"); + 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) { + WARN("cannot allocate indirection table for drop queue"); + 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) { + WARN("cannot allocate QP for drop queue"); + 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 -1; +} + +/** + * Delete drop queue. + * + * @param priv + * Pointer to private structure. + */ +void +priv_flow_delete_drop_queue(struct priv *priv) +{ + 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 priv + * Pointer to private structure. + * @param list + * Pointer to a TAILQ flow list. + */ +void +priv_flow_stop(struct priv *priv, struct mlx5_flows *list) +{ + struct rte_flow *flow; + + TAILQ_FOREACH_REVERSE(flow, list, mlx5_flows, next) { + unsigned int i; + + if (flow->drop) { + if (!flow->drxq.ibv_flow) + continue; + claim_zero(ibv_destroy_flow(flow->drxq.ibv_flow)); + flow->drxq.ibv_flow = NULL; + /* Next flow. */ + continue; + } + if (flow->mark) { + struct mlx5_ind_table_ibv *ind_tbl = NULL; + + for (i = 0; i != hash_rxq_init_n; ++i) { + if (!flow->frxq[i].hrxq) + continue; + ind_tbl = flow->frxq[i].hrxq->ind_table; + } + 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_priv_hrxq_release(priv, flow->frxq[i].hrxq); + flow->frxq[i].hrxq = NULL; + } + DEBUG("Flow %p removed", (void *)flow); + } +} + +/** + * Add all flows. + * + * @param priv + * Pointer to private structure. + * @param list + * Pointer to a TAILQ flow list. + * + * @return + * 0 on success, a errno value otherwise and rte_errno is set. + */ +int +priv_flow_start(struct priv *priv, struct mlx5_flows *list) +{ + struct rte_flow *flow; + + TAILQ_FOREACH(flow, list, next) { + unsigned int i; + + if (flow->drop) { + flow->drxq.ibv_flow = + ibv_create_flow(priv->flow_drop_queue->qp, + flow->drxq.ibv_attr); + if (!flow->drxq.ibv_flow) { + DEBUG("Flow %p cannot be applied", + (void *)flow); + rte_errno = EINVAL; + return rte_errno; + } + DEBUG("Flow %p applied", (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_priv_hrxq_get(priv, 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_priv_hrxq_new(priv, 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) { + DEBUG("Flow %p cannot be applied", + (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) { + DEBUG("Flow %p cannot be applied", + (void *)flow); + rte_errno = EINVAL; + return rte_errno; + } + DEBUG("Flow %p applied", (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 priv + * Pointer to private structure. + * + * @return the number of flows not released. + */ +int +priv_flow_verify(struct priv *priv) +{ + struct rte_flow *flow; + int ret = 0; + + TAILQ_FOREACH(flow, &priv->flows, next) { + DEBUG("%p: flow %p still referenced", (void *)priv, + (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. + */ +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) + return EINVAL; + 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 = priv_flow_create(priv, &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. + */ +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); } /** @@ -96,13 +2468,13 @@ mlx5_flow_destroy(struct rte_eth_dev *dev, struct rte_flow *flow, struct rte_flow_error *error) { - (void)dev; - (void)flow; + struct priv *priv = dev->data->dev_private; + (void)error; - rte_flow_error_set(error, ENOTSUP, - RTE_FLOW_ERROR_TYPE_UNSPECIFIED, - NULL, "not implemented yet"); - return -rte_errno; + priv_lock(priv); + priv_flow_destroy(priv, &priv->flows, flow); + priv_unlock(priv); + return 0; } /** @@ -115,10 +2487,612 @@ int mlx5_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error) { - (void)dev; + struct priv *priv = dev->data->dev_private; + (void)error; - rte_flow_error_set(error, ENOTSUP, - RTE_FLOW_ERROR_TYPE_UNSPECIFIED, - NULL, "not implemented yet"); - return -rte_errno; + priv_lock(priv); + priv_flow_flush(priv, &priv->flows); + priv_unlock(priv); + 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 errno value otherwise and rte_errno is set. + */ +static int +priv_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 res = ibv_query_counter_set(&query_cs_attr, &query_out); + + if (res) { + rte_flow_error_set(error, -res, + RTE_FLOW_ERROR_TYPE_UNSPECIFIED, + NULL, + "cannot read counter"); + return -res; + } + 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, + struct rte_flow *flow, + enum rte_flow_action_type action __rte_unused, + void *data, + struct rte_flow_error *error) +{ + struct priv *priv = dev->data->dev_private; + int res = EINVAL; + + priv_lock(priv); + if (flow->cs) { + res = priv_flow_query_count(flow->cs, + &flow->counter_stats, + (struct rte_flow_query_count *)data, + error); + } else { + rte_flow_error_set(error, res, + RTE_FLOW_ERROR_TYPE_UNSPECIFIED, + NULL, + "no counter found for flow"); + } + priv_unlock(priv); + return -res; +} +#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; + + priv_lock(priv); + if (dev->data->dev_started) { + rte_flow_error_set(error, EBUSY, + RTE_FLOW_ERROR_TYPE_UNSPECIFIED, + NULL, + "port must be stopped first"); + priv_unlock(priv); + return -rte_errno; + } + priv->isolated = !!enable; + if (enable) + priv->dev->dev_ops = &mlx5_dev_ops_isolate; + else + priv->dev->dev_ops = &mlx5_dev_ops; + priv_unlock(priv); + return 0; +} + +/** + * Convert a flow director filter to a generic flow. + * + * @param priv + * Private structure. + * @param fdir_filter + * Flow director filter to add. + * @param attributes + * Generic flow parameters structure. + * + * @return + * 0 on success, errno value on error. + */ +static int +priv_fdir_filter_convert(struct priv *priv, + const struct rte_eth_fdir_filter *fdir_filter, + struct mlx5_fdir *attributes) +{ + const struct rte_eth_fdir_input *input = &fdir_filter->input; + + /* Validate queue number. */ + if (fdir_filter->action.rx_queue >= priv->rxqs_n) { + ERROR("invalid queue number %d", fdir_filter->action.rx_queue); + return EINVAL; + } + 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: + ERROR("invalid behavior %d", fdir_filter->action.behavior); + return ENOTSUP; + } + attributes->queue.index = fdir_filter->action.rx_queue; + switch (fdir_filter->input.flow_type) { + case RTE_ETH_FLOW_NONFRAG_IPV4_UDP: + attributes->l3.ipv4.hdr = (struct ipv4_hdr){ + .src_addr = input->flow.udp4_flow.ip.src_ip, + .dst_addr = input->flow.udp4_flow.ip.dst_ip, + .time_to_live = input->flow.udp4_flow.ip.ttl, + .type_of_service = input->flow.udp4_flow.ip.tos, + .next_proto_id = input->flow.udp4_flow.ip.proto, + }; + attributes->l4.udp.hdr = (struct udp_hdr){ + .src_port = input->flow.udp4_flow.src_port, + .dst_port = input->flow.udp4_flow.dst_port, + }; + attributes->items[1] = (struct rte_flow_item){ + .type = RTE_FLOW_ITEM_TYPE_IPV4, + .spec = &attributes->l3, + }; + attributes->items[2] = (struct rte_flow_item){ + .type = RTE_FLOW_ITEM_TYPE_UDP, + .spec = &attributes->l4, + }; + break; + case RTE_ETH_FLOW_NONFRAG_IPV4_TCP: + attributes->l3.ipv4.hdr = (struct ipv4_hdr){ + .src_addr = input->flow.tcp4_flow.ip.src_ip, + .dst_addr = input->flow.tcp4_flow.ip.dst_ip, + .time_to_live = input->flow.tcp4_flow.ip.ttl, + .type_of_service = input->flow.tcp4_flow.ip.tos, + .next_proto_id = input->flow.tcp4_flow.ip.proto, + }; + attributes->l4.tcp.hdr = (struct tcp_hdr){ + .src_port = input->flow.tcp4_flow.src_port, + .dst_port = input->flow.tcp4_flow.dst_port, + }; + attributes->items[1] = (struct rte_flow_item){ + .type = RTE_FLOW_ITEM_TYPE_IPV4, + .spec = &attributes->l3, + }; + attributes->items[2] = (struct rte_flow_item){ + .type = RTE_FLOW_ITEM_TYPE_TCP, + .spec = &attributes->l4, + }; + break; + 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->items[1] = (struct rte_flow_item){ + .type = RTE_FLOW_ITEM_TYPE_IPV4, + .spec = &attributes->l3, + }; + break; + case RTE_ETH_FLOW_NONFRAG_IPV6_UDP: + attributes->l3.ipv6.hdr = (struct ipv6_hdr){ + .hop_limits = input->flow.udp6_flow.ip.hop_limits, + .proto = input->flow.udp6_flow.ip.proto, + }; + memcpy(attributes->l3.ipv6.hdr.src_addr, + input->flow.udp6_flow.ip.src_ip, + RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); + memcpy(attributes->l3.ipv6.hdr.dst_addr, + input->flow.udp6_flow.ip.dst_ip, + RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); + attributes->l4.udp.hdr = (struct udp_hdr){ + .src_port = input->flow.udp6_flow.src_port, + .dst_port = input->flow.udp6_flow.dst_port, + }; + attributes->items[1] = (struct rte_flow_item){ + .type = RTE_FLOW_ITEM_TYPE_IPV6, + .spec = &attributes->l3, + }; + attributes->items[2] = (struct rte_flow_item){ + .type = RTE_FLOW_ITEM_TYPE_UDP, + .spec = &attributes->l4, + }; + break; + case RTE_ETH_FLOW_NONFRAG_IPV6_TCP: + attributes->l3.ipv6.hdr = (struct ipv6_hdr){ + .hop_limits = input->flow.tcp6_flow.ip.hop_limits, + .proto = input->flow.tcp6_flow.ip.proto, + }; + memcpy(attributes->l3.ipv6.hdr.src_addr, + input->flow.tcp6_flow.ip.src_ip, + RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); + memcpy(attributes->l3.ipv6.hdr.dst_addr, + input->flow.tcp6_flow.ip.dst_ip, + RTE_DIM(attributes->l3.ipv6.hdr.src_addr)); + attributes->l4.tcp.hdr = (struct tcp_hdr){ + .src_port = input->flow.tcp6_flow.src_port, + .dst_port = input->flow.tcp6_flow.dst_port, + }; + attributes->items[1] = (struct rte_flow_item){ + .type = RTE_FLOW_ITEM_TYPE_IPV6, + .spec = &attributes->l3, + }; + attributes->items[2] = (struct rte_flow_item){ + .type = RTE_FLOW_ITEM_TYPE_TCP, + .spec = &attributes->l4, + }; + break; + 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)); + attributes->items[1] = (struct rte_flow_item){ + .type = RTE_FLOW_ITEM_TYPE_IPV6, + .spec = &attributes->l3, + }; + break; + default: + ERROR("invalid flow type%d", + fdir_filter->input.flow_type); + return ENOTSUP; + } + return 0; +} + +/** + * Add new flow director filter and store it in list. + * + * @param priv + * Private structure. + * @param fdir_filter + * Flow director filter to add. + * + * @return + * 0 on success, errno value on failure. + */ +static int +priv_fdir_filter_add(struct priv *priv, + const struct rte_eth_fdir_filter *fdir_filter) +{ + 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 = priv_fdir_filter_convert(priv, fdir_filter, &attributes); + if (ret) + return -ret; + ret = priv_flow_convert(priv, &attributes.attr, attributes.items, + attributes.actions, &error, &parser); + if (ret) + return -ret; + flow = priv_flow_create(priv, + &priv->flows, + &attributes.attr, + attributes.items, + attributes.actions, + &error); + if (flow) { + DEBUG("FDIR created %p", (void *)flow); + return 0; + } + return ENOTSUP; +} + +/** + * Delete specific filter. + * + * @param priv + * Private structure. + * @param fdir_filter + * Filter to be deleted. + * + * @return + * 0 on success, errno value on failure. + */ +static int +priv_fdir_filter_delete(struct priv *priv, + const struct rte_eth_fdir_filter *fdir_filter) +{ + 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 = priv_fdir_filter_convert(priv, fdir_filter, &attributes); + if (ret) + return -ret; + ret = priv_flow_convert(priv, &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.drop_q.ibv_attr + + parser.drop_q.offset); + *drop = (struct ibv_flow_spec_action_drop){ + .type = IBV_FLOW_SPEC_ACTION_DROP, + .size = sizeof(struct ibv_flow_spec_action_drop), + }; + parser.drop_q.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; + + if (parser.drop) + attr = parser.drop_q.ibv_attr; + else + attr = parser.queue[HASH_RXQ_ETH].ibv_attr; + if (flow->drop) + flow_attr = flow->drxq.ibv_attr; + else + flow_attr = flow->frxq[HASH_RXQ_ETH].ibv_attr; + /* Compare first the attributes. */ + if (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; + } + if (flow) + priv_flow_destroy(priv, &priv->flows, flow); +exit: + if (parser.drop) { + rte_free(parser.drop_q.ibv_attr); + } else { + for (i = 0; i != hash_rxq_init_n; ++i) { + if (parser.queue[i].ibv_attr) + rte_free(parser.queue[i].ibv_attr); + } + } + return -ret; +} + +/** + * Update queue for specific filter. + * + * @param priv + * Private structure. + * @param fdir_filter + * Filter to be updated. + * + * @return + * 0 on success, errno value on failure. + */ +static int +priv_fdir_filter_update(struct priv *priv, + const struct rte_eth_fdir_filter *fdir_filter) +{ + int ret; + + ret = priv_fdir_filter_delete(priv, fdir_filter); + if (ret) + return ret; + ret = priv_fdir_filter_add(priv, fdir_filter); + return ret; +} + +/** + * Flush all filters. + * + * @param priv + * Private structure. + */ +static void +priv_fdir_filter_flush(struct priv *priv) +{ + priv_flow_flush(priv, &priv->flows); +} + +/** + * Get flow director information. + * + * @param priv + * Private structure. + * @param[out] fdir_info + * Resulting flow director information. + */ +static void +priv_fdir_info_get(struct priv *priv, struct rte_eth_fdir_info *fdir_info) +{ + struct rte_eth_fdir_masks *mask = + &priv->dev->data->dev_conf.fdir_conf.mask; + + fdir_info->mode = priv->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 priv + * Pointer to private structure. + * @param filter_op + * Operation to perform. + * @param arg + * Pointer to operation-specific structure. + * + * @return + * 0 on success, errno value on failure. + */ +static int +priv_fdir_ctrl_func(struct priv *priv, enum rte_filter_op filter_op, void *arg) +{ + enum rte_fdir_mode fdir_mode = + priv->dev->data->dev_conf.fdir_conf.mode; + int ret = 0; + + if (filter_op == RTE_ETH_FILTER_NOP) + return 0; + if (fdir_mode != RTE_FDIR_MODE_PERFECT && + fdir_mode != RTE_FDIR_MODE_PERFECT_MAC_VLAN) { + ERROR("%p: flow director mode %d not supported", + (void *)priv, fdir_mode); + return EINVAL; + } + switch (filter_op) { + case RTE_ETH_FILTER_ADD: + ret = priv_fdir_filter_add(priv, arg); + break; + case RTE_ETH_FILTER_UPDATE: + ret = priv_fdir_filter_update(priv, arg); + break; + case RTE_ETH_FILTER_DELETE: + ret = priv_fdir_filter_delete(priv, arg); + break; + case RTE_ETH_FILTER_FLUSH: + priv_fdir_filter_flush(priv); + break; + case RTE_ETH_FILTER_INFO: + priv_fdir_info_get(priv, arg); + break; + default: + DEBUG("%p: unknown operation %u", (void *)priv, + filter_op); + ret = EINVAL; + break; + } + return ret; +} + +/** + * 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, negative errno value on failure. + */ +int +mlx5_dev_filter_ctrl(struct rte_eth_dev *dev, + enum rte_filter_type filter_type, + enum rte_filter_op filter_op, + void *arg) +{ + int ret = EINVAL; + struct priv *priv = dev->data->dev_private; + + switch (filter_type) { + case RTE_ETH_FILTER_GENERIC: + if (filter_op != RTE_ETH_FILTER_GET) + return -EINVAL; + *(const void **)arg = &mlx5_flow_ops; + return 0; + case RTE_ETH_FILTER_FDIR: + priv_lock(priv); + ret = priv_fdir_ctrl_func(priv, filter_op, arg); + priv_unlock(priv); + break; + default: + ERROR("%p: filter type (%d) not supported", + (void *)dev, filter_type); + break; + } + return -ret; }