From: Wenzhuo Lu Date: Thu, 29 Jun 2017 04:23:52 +0000 (+0800) Subject: net/ixgbe: support adding TM node X-Git-Tag: spdx-start~2505 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=e0ff4d304ccf;p=dpdk.git net/ixgbe: support adding TM node Add the support of the Traffic Management API, rte_tm_node_add. Signed-off-by: Wenzhuo Lu --- diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c index bf74c64273..3e6105c44a 100644 --- a/drivers/net/ixgbe/ixgbe_ethdev.c +++ b/drivers/net/ixgbe/ixgbe_ethdev.c @@ -2715,6 +2715,8 @@ ixgbe_dev_stop(struct rte_eth_dev *dev) struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev); struct rte_intr_handle *intr_handle = &pci_dev->intr_handle; int vf; + struct ixgbe_tm_conf *tm_conf = + IXGBE_DEV_PRIVATE_TO_TM_CONF(dev->data->dev_private); PMD_INIT_FUNC_TRACE(); @@ -2761,6 +2763,9 @@ ixgbe_dev_stop(struct rte_eth_dev *dev) rte_free(intr_handle->intr_vec); intr_handle->intr_vec = NULL; } + + /* reset hierarchy commit */ + tm_conf->committed = false; } /* diff --git a/drivers/net/ixgbe/ixgbe_ethdev.h b/drivers/net/ixgbe/ixgbe_ethdev.h index 064d427e07..20820481cb 100644 --- a/drivers/net/ixgbe/ixgbe_ethdev.h +++ b/drivers/net/ixgbe/ixgbe_ethdev.h @@ -447,9 +447,56 @@ struct ixgbe_tm_shaper_profile { TAILQ_HEAD(ixgbe_shaper_profile_list, ixgbe_tm_shaper_profile); +/* node type of Traffic Manager */ +enum ixgbe_tm_node_type { + IXGBE_TM_NODE_TYPE_PORT, + IXGBE_TM_NODE_TYPE_TC, + IXGBE_TM_NODE_TYPE_QUEUE, + IXGBE_TM_NODE_TYPE_MAX, +}; + +/* Struct to store Traffic Manager node configuration. */ +struct ixgbe_tm_node { + TAILQ_ENTRY(ixgbe_tm_node) node; + uint32_t id; + uint32_t priority; + uint32_t weight; + uint32_t reference_count; + uint16_t no; + struct ixgbe_tm_node *parent; + struct ixgbe_tm_shaper_profile *shaper_profile; + struct rte_tm_node_params params; +}; + +TAILQ_HEAD(ixgbe_tm_node_list, ixgbe_tm_node); + /* The configuration of Traffic Manager */ struct ixgbe_tm_conf { struct ixgbe_shaper_profile_list shaper_profile_list; + struct ixgbe_tm_node *root; /* root node - port */ + struct ixgbe_tm_node_list tc_list; /* node list for all the TCs */ + struct ixgbe_tm_node_list queue_list; /* node list for all the queues */ + /** + * The number of added TC nodes. + * It should be no more than the TC number of this port. + */ + uint32_t nb_tc_node; + /** + * The number of added queue nodes. + * It should be no more than the queue number of this port. + */ + uint32_t nb_queue_node; + /** + * This flag is used to check if APP can change the TM node + * configuration. + * When it's true, means the configuration is applied to HW, + * APP should not change the configuration. + * As we don't support on-the-fly configuration, when starting + * the port, APP should call the hierarchy_commit API to set this + * flag to true. When stopping the port, this flag should be set + * to false. + */ + bool committed; }; /* diff --git a/drivers/net/ixgbe/ixgbe_tm.c b/drivers/net/ixgbe/ixgbe_tm.c index 628cf13d6b..ab0df755e9 100644 --- a/drivers/net/ixgbe/ixgbe_tm.c +++ b/drivers/net/ixgbe/ixgbe_tm.c @@ -45,11 +45,17 @@ static int ixgbe_shaper_profile_add(struct rte_eth_dev *dev, static int ixgbe_shaper_profile_del(struct rte_eth_dev *dev, uint32_t shaper_profile_id, struct rte_tm_error *error); +static int ixgbe_node_add(struct rte_eth_dev *dev, uint32_t node_id, + uint32_t parent_node_id, uint32_t priority, + uint32_t weight, uint32_t level_id, + struct rte_tm_node_params *params, + struct rte_tm_error *error); const struct rte_tm_ops ixgbe_tm_ops = { .capabilities_get = ixgbe_tm_capabilities_get, .shaper_profile_add = ixgbe_shaper_profile_add, .shaper_profile_delete = ixgbe_shaper_profile_del, + .node_add = ixgbe_node_add, }; int @@ -72,6 +78,14 @@ ixgbe_tm_conf_init(struct rte_eth_dev *dev) /* initialize shaper profile list */ TAILQ_INIT(&tm_conf->shaper_profile_list); + + /* initialize node configuration */ + tm_conf->root = NULL; + TAILQ_INIT(&tm_conf->queue_list); + TAILQ_INIT(&tm_conf->tc_list); + tm_conf->nb_tc_node = 0; + tm_conf->nb_queue_node = 0; + tm_conf->committed = false; } void @@ -80,6 +94,23 @@ ixgbe_tm_conf_uninit(struct rte_eth_dev *dev) struct ixgbe_tm_conf *tm_conf = IXGBE_DEV_PRIVATE_TO_TM_CONF(dev->data->dev_private); struct ixgbe_tm_shaper_profile *shaper_profile; + struct ixgbe_tm_node *tm_node; + + /* clear node configuration */ + while ((tm_node = TAILQ_FIRST(&tm_conf->queue_list))) { + TAILQ_REMOVE(&tm_conf->queue_list, tm_node, node); + rte_free(tm_node); + } + tm_conf->nb_queue_node = 0; + while ((tm_node = TAILQ_FIRST(&tm_conf->tc_list))) { + TAILQ_REMOVE(&tm_conf->tc_list, tm_node, node); + rte_free(tm_node); + } + tm_conf->nb_tc_node = 0; + if (tm_conf->root) { + rte_free(tm_conf->root); + tm_conf->root = NULL; + } /* Remove all shaper profiles */ while ((shaper_profile = @@ -301,3 +332,408 @@ ixgbe_shaper_profile_del(struct rte_eth_dev *dev, return 0; } + +static inline struct ixgbe_tm_node * +ixgbe_tm_node_search(struct rte_eth_dev *dev, uint32_t node_id, + enum ixgbe_tm_node_type *node_type) +{ + struct ixgbe_tm_conf *tm_conf = + IXGBE_DEV_PRIVATE_TO_TM_CONF(dev->data->dev_private); + struct ixgbe_tm_node *tm_node; + + if (tm_conf->root && tm_conf->root->id == node_id) { + *node_type = IXGBE_TM_NODE_TYPE_PORT; + return tm_conf->root; + } + + TAILQ_FOREACH(tm_node, &tm_conf->tc_list, node) { + if (tm_node->id == node_id) { + *node_type = IXGBE_TM_NODE_TYPE_TC; + return tm_node; + } + } + + TAILQ_FOREACH(tm_node, &tm_conf->queue_list, node) { + if (tm_node->id == node_id) { + *node_type = IXGBE_TM_NODE_TYPE_QUEUE; + return tm_node; + } + } + + return NULL; +} + +static void +ixgbe_queue_base_nb_get(struct rte_eth_dev *dev, uint16_t tc_node_no, + uint16_t *base, uint16_t *nb) +{ + uint8_t nb_tcs = ixgbe_tc_nb_get(dev); + struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev); + uint16_t vf_num = pci_dev->max_vfs; + + *base = 0; + *nb = 0; + + /* VT on */ + if (vf_num) { + /* no DCB */ + if (nb_tcs == 1) { + if (vf_num >= ETH_32_POOLS) { + *nb = 2; + *base = vf_num * 2; + } else if (vf_num >= ETH_16_POOLS) { + *nb = 4; + *base = vf_num * 4; + } else { + *nb = 8; + *base = vf_num * 8; + } + } else { + /* DCB */ + *nb = 1; + *base = vf_num * nb_tcs + tc_node_no; + } + } else { + /* VT off */ + if (nb_tcs == ETH_8_TCS) { + switch (tc_node_no) { + case 0: + *base = 0; + *nb = 32; + break; + case 1: + *base = 32; + *nb = 32; + break; + case 2: + *base = 64; + *nb = 16; + break; + case 3: + *base = 80; + *nb = 16; + break; + case 4: + *base = 96; + *nb = 8; + break; + case 5: + *base = 104; + *nb = 8; + break; + case 6: + *base = 112; + *nb = 8; + break; + case 7: + *base = 120; + *nb = 8; + break; + default: + return; + } + } else { + switch (tc_node_no) { + /** + * If no VF and no DCB, only 64 queues can be used. + * This case also be covered by this "case 0". + */ + case 0: + *base = 0; + *nb = 64; + break; + case 1: + *base = 64; + *nb = 32; + break; + case 2: + *base = 96; + *nb = 16; + break; + case 3: + *base = 112; + *nb = 16; + break; + default: + return; + } + } + } +} + +static int +ixgbe_node_param_check(uint32_t node_id, uint32_t parent_node_id, + uint32_t priority, uint32_t weight, + struct rte_tm_node_params *params, + struct rte_tm_error *error) +{ + if (node_id == RTE_TM_NODE_ID_NULL) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "invalid node id"; + return -EINVAL; + } + + if (priority) { + error->type = RTE_TM_ERROR_TYPE_NODE_PRIORITY; + error->message = "priority should be 0"; + return -EINVAL; + } + + if (weight != 1) { + error->type = RTE_TM_ERROR_TYPE_NODE_WEIGHT; + error->message = "weight must be 1"; + return -EINVAL; + } + + /* not support shared shaper */ + if (params->shared_shaper_id) { + error->type = RTE_TM_ERROR_TYPE_NODE_PARAMS_SHARED_SHAPER_ID; + error->message = "shared shaper not supported"; + return -EINVAL; + } + if (params->n_shared_shapers) { + error->type = RTE_TM_ERROR_TYPE_NODE_PARAMS_N_SHARED_SHAPERS; + error->message = "shared shaper not supported"; + return -EINVAL; + } + + /* for root node */ + if (parent_node_id == RTE_TM_NODE_ID_NULL) { + /* check the unsupported parameters */ + if (params->nonleaf.wfq_weight_mode) { + error->type = + RTE_TM_ERROR_TYPE_NODE_PARAMS_WFQ_WEIGHT_MODE; + error->message = "WFQ not supported"; + return -EINVAL; + } + if (params->nonleaf.n_sp_priorities != 1) { + error->type = + RTE_TM_ERROR_TYPE_NODE_PARAMS_N_SP_PRIORITIES; + error->message = "SP priority not supported"; + return -EINVAL; + } else if (params->nonleaf.wfq_weight_mode && + !(*params->nonleaf.wfq_weight_mode)) { + error->type = + RTE_TM_ERROR_TYPE_NODE_PARAMS_WFQ_WEIGHT_MODE; + error->message = "WFP should be byte mode"; + return -EINVAL; + } + + return 0; + } + + /* for TC or queue node */ + /* check the unsupported parameters */ + if (params->leaf.cman) { + error->type = RTE_TM_ERROR_TYPE_NODE_PARAMS_CMAN; + error->message = "Congestion management not supported"; + return -EINVAL; + } + if (params->leaf.wred.wred_profile_id != + RTE_TM_WRED_PROFILE_ID_NONE) { + error->type = + RTE_TM_ERROR_TYPE_NODE_PARAMS_WRED_PROFILE_ID; + error->message = "WRED not supported"; + return -EINVAL; + } + if (params->leaf.wred.shared_wred_context_id) { + error->type = + RTE_TM_ERROR_TYPE_NODE_PARAMS_SHARED_WRED_CONTEXT_ID; + error->message = "WRED not supported"; + return -EINVAL; + } + if (params->leaf.wred.n_shared_wred_contexts) { + error->type = + RTE_TM_ERROR_TYPE_NODE_PARAMS_N_SHARED_WRED_CONTEXTS; + error->message = "WRED not supported"; + return -EINVAL; + } + + return 0; +} + +/** + * Now the TC and queue configuration is controlled by DCB. + * We need check if the node configuration follows the DCB configuration. + * In the future, we may use TM to cover DCB. + */ +static int +ixgbe_node_add(struct rte_eth_dev *dev, uint32_t node_id, + uint32_t parent_node_id, uint32_t priority, + uint32_t weight, uint32_t level_id, + struct rte_tm_node_params *params, + struct rte_tm_error *error) +{ + struct ixgbe_tm_conf *tm_conf = + IXGBE_DEV_PRIVATE_TO_TM_CONF(dev->data->dev_private); + enum ixgbe_tm_node_type node_type = IXGBE_TM_NODE_TYPE_MAX; + enum ixgbe_tm_node_type parent_node_type = IXGBE_TM_NODE_TYPE_MAX; + struct ixgbe_tm_shaper_profile *shaper_profile; + struct ixgbe_tm_node *tm_node; + struct ixgbe_tm_node *parent_node; + uint8_t nb_tcs; + uint16_t q_base = 0; + uint16_t q_nb = 0; + int ret; + + if (!params || !error) + return -EINVAL; + + /* if already committed */ + if (tm_conf->committed) { + error->type = RTE_TM_ERROR_TYPE_UNSPECIFIED; + error->message = "already committed"; + return -EINVAL; + } + + ret = ixgbe_node_param_check(node_id, parent_node_id, priority, weight, + params, error); + if (ret) + return ret; + + /* check if the node ID is already used */ + if (ixgbe_tm_node_search(dev, node_id, &node_type)) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "node id already used"; + return -EINVAL; + } + + /* check the shaper profile id */ + shaper_profile = ixgbe_shaper_profile_search(dev, + params->shaper_profile_id); + if (!shaper_profile) { + error->type = RTE_TM_ERROR_TYPE_NODE_PARAMS_SHAPER_PROFILE_ID; + error->message = "shaper profile not exist"; + return -EINVAL; + } + + /* root node if not have a parent */ + if (parent_node_id == RTE_TM_NODE_ID_NULL) { + /* check level */ + if (level_id != RTE_TM_NODE_LEVEL_ID_ANY && + level_id > IXGBE_TM_NODE_TYPE_PORT) { + error->type = RTE_TM_ERROR_TYPE_NODE_PARAMS; + error->message = "Wrong level"; + return -EINVAL; + } + + /* obviously no more than one root */ + if (tm_conf->root) { + error->type = RTE_TM_ERROR_TYPE_NODE_PARENT_NODE_ID; + error->message = "already have a root"; + return -EINVAL; + } + + /* add the root node */ + tm_node = rte_zmalloc("ixgbe_tm_node", + sizeof(struct ixgbe_tm_node), + 0); + if (!tm_node) + return -ENOMEM; + tm_node->id = node_id; + tm_node->priority = priority; + tm_node->weight = weight; + tm_node->reference_count = 0; + tm_node->no = 0; + tm_node->parent = NULL; + tm_node->shaper_profile = shaper_profile; + (void)rte_memcpy(&tm_node->params, params, + sizeof(struct rte_tm_node_params)); + tm_conf->root = tm_node; + + /* increase the reference counter of the shaper profile */ + shaper_profile->reference_count++; + + return 0; + } + + /* TC or queue node */ + /* check the parent node */ + parent_node = ixgbe_tm_node_search(dev, parent_node_id, + &parent_node_type); + if (!parent_node) { + error->type = RTE_TM_ERROR_TYPE_NODE_PARENT_NODE_ID; + error->message = "parent not exist"; + return -EINVAL; + } + if (parent_node_type != IXGBE_TM_NODE_TYPE_PORT && + parent_node_type != IXGBE_TM_NODE_TYPE_TC) { + error->type = RTE_TM_ERROR_TYPE_NODE_PARENT_NODE_ID; + error->message = "parent is not port or TC"; + return -EINVAL; + } + /* check level */ + if (level_id != RTE_TM_NODE_LEVEL_ID_ANY && + level_id != parent_node_type + 1) { + error->type = RTE_TM_ERROR_TYPE_NODE_PARAMS; + error->message = "Wrong level"; + return -EINVAL; + } + + /* check the node number */ + if (parent_node_type == IXGBE_TM_NODE_TYPE_PORT) { + /* check TC number */ + nb_tcs = ixgbe_tc_nb_get(dev); + if (tm_conf->nb_tc_node >= nb_tcs) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "too many TCs"; + return -EINVAL; + } + } else { + /* check queue number */ + if (tm_conf->nb_queue_node >= dev->data->nb_tx_queues) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "too many queues"; + return -EINVAL; + } + + ixgbe_queue_base_nb_get(dev, parent_node->no, &q_base, &q_nb); + if (parent_node->reference_count >= q_nb) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "too many queues than TC supported"; + return -EINVAL; + } + + /** + * check the node id. + * For queue, the node id means queue id. + */ + if (node_id >= dev->data->nb_tx_queues) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "too large queue id"; + return -EINVAL; + } + } + + /* add the TC or queue node */ + tm_node = rte_zmalloc("ixgbe_tm_node", + sizeof(struct ixgbe_tm_node), + 0); + if (!tm_node) + return -ENOMEM; + tm_node->id = node_id; + tm_node->priority = priority; + tm_node->weight = weight; + tm_node->reference_count = 0; + tm_node->parent = parent_node; + tm_node->shaper_profile = shaper_profile; + (void)rte_memcpy(&tm_node->params, params, + sizeof(struct rte_tm_node_params)); + if (parent_node_type == IXGBE_TM_NODE_TYPE_PORT) { + tm_node->no = parent_node->reference_count; + TAILQ_INSERT_TAIL(&tm_conf->tc_list, + tm_node, node); + tm_conf->nb_tc_node++; + } else { + tm_node->no = q_base + parent_node->reference_count; + TAILQ_INSERT_TAIL(&tm_conf->queue_list, + tm_node, node); + tm_conf->nb_queue_node++; + } + tm_node->parent->reference_count++; + + /* increase the reference counter of the shaper profile */ + shaper_profile->reference_count++; + + return 0; +}