From: Suanming Mou Date: Thu, 16 Apr 2020 02:42:02 +0000 (+0800) Subject: net/mlx5: convert encap/decap resource to indexed X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=014d1cbe51030605ccc1d2d1b5f198c2a8bff678;p=dpdk.git net/mlx5: convert encap/decap resource to indexed This commit converts the flow encap/decap resource to indexed. Using the uint32_t index instead of pointer saves 4 bytes memory for the flow handle. For millions flows, it will save several MBytes of memory. Signed-off-by: Suanming Mou Acked-by: Viacheslav Ovsiienko --- diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c index f8b134ca66..3fb0bb5f20 100644 --- a/drivers/net/mlx5/mlx5.c +++ b/drivers/net/mlx5/mlx5.c @@ -198,6 +198,21 @@ struct mlx5_dev_spawn_data { static LIST_HEAD(, mlx5_ibv_shared) mlx5_ibv_list = LIST_HEAD_INITIALIZER(); static pthread_mutex_t mlx5_ibv_list_mutex = PTHREAD_MUTEX_INITIALIZER; +static struct mlx5_indexed_pool_config mlx5_ipool_cfg[] = { + { + .size = sizeof(struct mlx5_flow_dv_encap_decap_resource), + .trunk_size = 64, + .grow_trunk = 3, + .grow_shift = 2, + .need_lock = 0, + .release_mem_en = 1, + .malloc = rte_malloc_socket, + .free = rte_free, + .type = "mlx5_encap_decap_ipool", + }, +}; + + #define MLX5_FLOW_MIN_ID_POOL_SIZE 512 #define MLX5_ID_GENERATION_ARRAY_FACTOR 16 @@ -416,6 +431,36 @@ mlx5_flow_counters_mng_close(struct mlx5_ibv_shared *sh) memset(&sh->cmng, 0, sizeof(sh->cmng)); } +/** + * Initialize the flow resources' indexed mempool. + * + * @param[in] sh + * Pointer to mlx5_ibv_shared object. + */ +static void +mlx5_flow_ipool_create(struct mlx5_ibv_shared *sh) +{ + uint8_t i; + + for (i = 0; i < MLX5_IPOOL_MAX; ++i) + sh->ipool[i] = mlx5_ipool_create(&mlx5_ipool_cfg[i]); +} + +/** + * Release the flow resources' indexed mempool. + * + * @param[in] sh + * Pointer to mlx5_ibv_shared object. + */ +static void +mlx5_flow_ipool_destroy(struct mlx5_ibv_shared *sh) +{ + uint8_t i; + + for (i = 0; i < MLX5_IPOOL_MAX; ++i) + mlx5_ipool_destroy(sh->ipool[i]); +} + /** * Extract pdn of PD object using DV API. * @@ -631,6 +676,7 @@ mlx5_alloc_shared_ibctx(const struct mlx5_dev_spawn_data *spawn, goto error; } mlx5_flow_counters_mng_init(sh); + mlx5_flow_ipool_create(sh); /* Add device to memory callback list. */ rte_rwlock_write_lock(&mlx5_shared_data->mem_event_rwlock); LIST_INSERT_HEAD(&mlx5_shared_data->mem_event_cb_list, @@ -703,6 +749,7 @@ mlx5_free_shared_ibctx(struct mlx5_ibv_shared *sh) * Only primary process handles async device events. **/ mlx5_flow_counters_mng_close(sh); + mlx5_flow_ipool_destroy(sh); MLX5_ASSERT(!sh->intr_cnt); if (sh->intr_cnt) mlx5_intr_callback_unregister diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h index 01112f78a5..4286969a96 100644 --- a/drivers/net/mlx5/mlx5.h +++ b/drivers/net/mlx5/mlx5.h @@ -43,6 +43,12 @@ #include "mlx5_utils.h" #include "mlx5_autoconf.h" + +enum mlx5_ipool_index { + MLX5_IPOOL_DECAP_ENCAP = 0, /* Pool for encap/decap resource. */ + MLX5_IPOOL_MAX, +}; + /** Key string for IPC. */ #define MLX5_MP_NAME "net_mlx5_mp" @@ -423,7 +429,7 @@ struct mlx5_ibv_shared { /* Direct Rules tables for FDB, NIC TX+RX */ void *esw_drop_action; /* Pointer to DR E-Switch drop action. */ void *pop_vlan_action; /* Pointer to DR pop VLAN action. */ - LIST_HEAD(encap_decap, mlx5_flow_dv_encap_decap_resource) encaps_decaps; + uint32_t encaps_decaps; /* Encap/decap action indexed memory list. */ LIST_HEAD(modify_cmd, mlx5_flow_dv_modify_hdr_resource) modify_cmds; struct mlx5_hlist *tag_table; LIST_HEAD(port_id_action_list, mlx5_flow_dv_port_id_action_resource) @@ -431,6 +437,8 @@ struct mlx5_ibv_shared { LIST_HEAD(push_vlan_action_list, mlx5_flow_dv_push_vlan_action_resource) push_vlan_action_list; /* List of push VLAN actions. */ struct mlx5_flow_counter_mng cmng; /* Counters management structure. */ + struct mlx5_indexed_pool *ipool[MLX5_IPOOL_MAX]; + /* Memory Pool for mlx5 flow resources. */ /* Shared interrupt handler section. */ pthread_mutex_t intr_mutex; /* Interrupt config mutex. */ uint32_t intr_cnt; /* Interrupt handler reference counter. */ diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h index df09d0bb6f..6069403369 100644 --- a/drivers/net/mlx5/mlx5_flow.h +++ b/drivers/net/mlx5/mlx5_flow.h @@ -364,7 +364,7 @@ struct mlx5_flow_dv_matcher { /* Encap/decap resource structure. */ struct mlx5_flow_dv_encap_decap_resource { - LIST_ENTRY(mlx5_flow_dv_encap_decap_resource) next; + ILIST_ENTRY(uint32_t)next; /* Pointer to next element. */ rte_atomic32_t refcnt; /**< Reference counter. */ void *verbs_action; @@ -482,8 +482,8 @@ struct mlx5_flow_rss { struct mlx5_flow_handle_dv { /* Flow DV api: */ struct mlx5_flow_dv_matcher *matcher; /**< Cache to matcher. */ - struct mlx5_flow_dv_encap_decap_resource *encap_decap; - /**< Pointer to encap/decap resource in cache. */ + uint32_t encap_decap; + /**< Index to encap/decap resource in cache. */ struct mlx5_flow_dv_modify_hdr_resource *modify_hdr; /**< Pointer to modify header resource in cache. */ struct mlx5_flow_dv_jump_tbl_resource *jump; @@ -543,6 +543,8 @@ struct mlx5_flow_dv_workspace { uint8_t transfer; /**< 1 if the flow is E-Switch flow. */ int actions_n; /**< number of actions. */ void *actions[MLX5_DV_MAX_NUMBER_OF_ACTIONS]; /**< Action list. */ + struct mlx5_flow_dv_encap_decap_resource *encap_decap; + /**< Pointer to encap/decap resource in cache. */ struct mlx5_flow_dv_match_params value; /**< Holds the value that the packet is compared to. */ }; diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c index ae00ca431e..16164d8374 100644 --- a/drivers/net/mlx5/mlx5_flow_dv.c +++ b/drivers/net/mlx5/mlx5_flow_dv.c @@ -2467,6 +2467,7 @@ flow_dv_encap_decap_resource_register struct mlx5_ibv_shared *sh = priv->sh; struct mlx5_flow_dv_encap_decap_resource *cache_resource; struct mlx5dv_dr_domain *domain; + uint32_t idx = 0; resource->flags = dev_flow->dv.group ? 0 : 1; if (resource->ft_type == MLX5DV_FLOW_TABLE_TYPE_FDB) @@ -2476,7 +2477,8 @@ flow_dv_encap_decap_resource_register else domain = sh->tx_domain; /* Lookup a matching resource from cache. */ - LIST_FOREACH(cache_resource, &sh->encaps_decaps, next) { + ILIST_FOREACH(sh->ipool[MLX5_IPOOL_DECAP_ENCAP], sh->encaps_decaps, idx, + cache_resource, next) { if (resource->reformat_type == cache_resource->reformat_type && resource->ft_type == cache_resource->ft_type && resource->flags == cache_resource->flags && @@ -2488,12 +2490,14 @@ flow_dv_encap_decap_resource_register (void *)cache_resource, rte_atomic32_read(&cache_resource->refcnt)); rte_atomic32_inc(&cache_resource->refcnt); - dev_flow->handle->dvh.encap_decap = cache_resource; + dev_flow->handle->dvh.encap_decap = idx; + dev_flow->dv.encap_decap = cache_resource; return 0; } } /* Register new encap/decap resource. */ - cache_resource = rte_calloc(__func__, 1, sizeof(*cache_resource), 0); + cache_resource = mlx5_ipool_zmalloc(sh->ipool[MLX5_IPOOL_DECAP_ENCAP], + &dev_flow->handle->dvh.encap_decap); if (!cache_resource) return rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, @@ -2513,8 +2517,9 @@ flow_dv_encap_decap_resource_register } rte_atomic32_init(&cache_resource->refcnt); rte_atomic32_inc(&cache_resource->refcnt); - LIST_INSERT_HEAD(&sh->encaps_decaps, cache_resource, next); - dev_flow->handle->dvh.encap_decap = cache_resource; + ILIST_INSERT(sh->ipool[MLX5_IPOOL_DECAP_ENCAP], &sh->encaps_decaps, + dev_flow->handle->dvh.encap_decap, cache_resource, next); + dev_flow->dv.encap_decap = cache_resource; DRV_LOG(DEBUG, "new encap/decap resource %p: refcnt %d++", (void *)cache_resource, rte_atomic32_read(&cache_resource->refcnt)); @@ -3112,6 +3117,7 @@ flow_dv_create_action_raw_encap(struct rte_eth_dev *dev, const struct rte_flow_action_raw_encap *encap_data; struct mlx5_flow_dv_encap_decap_resource res; + memset(&res, 0, sizeof(res)); encap_data = (const struct rte_flow_action_raw_encap *)action->conf; res.size = encap_data->size; memcpy(res.buf, encap_data->data, res.size); @@ -7594,7 +7600,7 @@ cnt_err: error)) return -rte_errno; dev_flow->dv.actions[actions_n++] = - handle->dvh.encap_decap->verbs_action; + dev_flow->dv.encap_decap->verbs_action; action_flags |= MLX5_FLOW_ACTION_ENCAP; break; case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP: @@ -7604,7 +7610,7 @@ cnt_err: error)) return -rte_errno; dev_flow->dv.actions[actions_n++] = - handle->dvh.encap_decap->verbs_action; + dev_flow->dv.encap_decap->verbs_action; action_flags |= MLX5_FLOW_ACTION_DECAP; break; case RTE_FLOW_ACTION_TYPE_RAW_ENCAP: @@ -7614,7 +7620,7 @@ cnt_err: (dev, actions, dev_flow, attr, error)) return -rte_errno; dev_flow->dv.actions[actions_n++] = - handle->dvh.encap_decap->verbs_action; + dev_flow->dv.encap_decap->verbs_action; } else { /* Handle encap without preceding decap. */ if (flow_dv_create_action_l2_encap @@ -7622,7 +7628,7 @@ cnt_err: error)) return -rte_errno; dev_flow->dv.actions[actions_n++] = - handle->dvh.encap_decap->verbs_action; + dev_flow->dv.encap_decap->verbs_action; } action_flags |= MLX5_FLOW_ACTION_ENCAP; break; @@ -7634,7 +7640,7 @@ cnt_err: (dev, dev_flow, attr->transfer, error)) return -rte_errno; dev_flow->dv.actions[actions_n++] = - handle->dvh.encap_decap->verbs_action; + dev_flow->dv.encap_decap->verbs_action; } /* If decap is followed by encap, handle it at encap. */ action_flags |= MLX5_FLOW_ACTION_DECAP; @@ -8188,6 +8194,8 @@ flow_dv_matcher_release(struct rte_eth_dev *dev, /** * Release an encap/decap resource. * + * @param dev + * Pointer to Ethernet device. * @param handle * Pointer to mlx5_flow_handle. * @@ -8195,11 +8203,17 @@ flow_dv_matcher_release(struct rte_eth_dev *dev, * 1 while a reference on it exists, 0 when freed. */ static int -flow_dv_encap_decap_resource_release(struct mlx5_flow_handle *handle) +flow_dv_encap_decap_resource_release(struct rte_eth_dev *dev, + struct mlx5_flow_handle *handle) { - struct mlx5_flow_dv_encap_decap_resource *cache_resource = - handle->dvh.encap_decap; + struct mlx5_priv *priv = dev->data->dev_private; + uint32_t idx = handle->dvh.encap_decap; + struct mlx5_flow_dv_encap_decap_resource *cache_resource; + cache_resource = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_DECAP_ENCAP], + idx); + if (!cache_resource) + return 0; MLX5_ASSERT(cache_resource->verbs_action); DRV_LOG(DEBUG, "encap/decap resource %p: refcnt %d--", (void *)cache_resource, @@ -8207,8 +8221,10 @@ flow_dv_encap_decap_resource_release(struct mlx5_flow_handle *handle) if (rte_atomic32_dec_and_test(&cache_resource->refcnt)) { claim_zero(mlx5_glue->destroy_flow_action (cache_resource->verbs_action)); - LIST_REMOVE(cache_resource, next); - rte_free(cache_resource); + ILIST_REMOVE(priv->sh->ipool[MLX5_IPOOL_DECAP_ENCAP], + &priv->sh->encaps_decaps, idx, + cache_resource, next); + mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_DECAP_ENCAP], idx); DRV_LOG(DEBUG, "encap/decap resource %p: removed", (void *)cache_resource); return 0; @@ -8410,7 +8426,7 @@ __flow_dv_destroy(struct rte_eth_dev *dev, struct rte_flow *flow) if (dev_handle->dvh.matcher) flow_dv_matcher_release(dev, dev_handle); if (dev_handle->dvh.encap_decap) - flow_dv_encap_decap_resource_release(dev_handle); + flow_dv_encap_decap_resource_release(dev, dev_handle); if (dev_handle->dvh.modify_hdr) flow_dv_modify_hdr_resource_release(dev_handle); if (dev_handle->dvh.jump)