From 0611a69bb7af827dc553c466e78f37e900372551 Mon Sep 17 00:00:00 2001 From: Jiawen Wu Date: Fri, 18 Dec 2020 17:36:55 +0800 Subject: [PATCH] net/txgbe: support TM node add and delete Support traffic manager node add and delete operations. Signed-off-by: Jiawen Wu --- drivers/net/txgbe/txgbe_ethdev.h | 1 + drivers/net/txgbe/txgbe_tm.c | 488 +++++++++++++++++++++++++++++++ 2 files changed, 489 insertions(+) diff --git a/drivers/net/txgbe/txgbe_ethdev.h b/drivers/net/txgbe/txgbe_ethdev.h index 04db32934d..52ddda577e 100644 --- a/drivers/net/txgbe/txgbe_ethdev.h +++ b/drivers/net/txgbe/txgbe_ethdev.h @@ -16,6 +16,7 @@ #include #include #include +#include #include /* need update link, bit flag */ diff --git a/drivers/net/txgbe/txgbe_tm.c b/drivers/net/txgbe/txgbe_tm.c index 8adb038250..6dd593e54e 100644 --- a/drivers/net/txgbe/txgbe_tm.c +++ b/drivers/net/txgbe/txgbe_tm.c @@ -16,6 +16,15 @@ static int txgbe_shaper_profile_add(struct rte_eth_dev *dev, static int txgbe_shaper_profile_del(struct rte_eth_dev *dev, uint32_t shaper_profile_id, struct rte_tm_error *error); +static int txgbe_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); +static int txgbe_node_delete(struct rte_eth_dev *dev, uint32_t node_id, + struct rte_tm_error *error); +static int txgbe_node_type_get(struct rte_eth_dev *dev, uint32_t node_id, + int *is_leaf, struct rte_tm_error *error); static int txgbe_level_capabilities_get(struct rte_eth_dev *dev, uint32_t level_id, struct rte_tm_level_capabilities *cap, @@ -29,6 +38,9 @@ const struct rte_tm_ops txgbe_tm_ops = { .capabilities_get = txgbe_tm_capabilities_get, .shaper_profile_add = txgbe_shaper_profile_add, .shaper_profile_delete = txgbe_shaper_profile_del, + .node_add = txgbe_node_add, + .node_delete = txgbe_node_delete, + .node_type_get = txgbe_node_type_get, .level_capabilities_get = txgbe_level_capabilities_get, .node_capabilities_get = txgbe_node_capabilities_get, }; @@ -332,6 +344,482 @@ txgbe_tm_node_search(struct rte_eth_dev *dev, uint32_t node_id, return NULL; } +static void +txgbe_queue_base_nb_get(struct rte_eth_dev *dev, uint16_t tc_node_no, + uint16_t *base, uint16_t *nb) +{ + uint8_t nb_tcs = txgbe_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 +txgbe_node_param_check(struct rte_eth_dev *dev, uint32_t 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 non-leaf node */ + if (node_id >= dev->data->nb_tx_queues) { + /* 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 leaf 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 +txgbe_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 txgbe_tm_conf *tm_conf = TXGBE_DEV_TM_CONF(dev); + enum txgbe_tm_node_type node_type = TXGBE_TM_NODE_TYPE_MAX; + enum txgbe_tm_node_type parent_node_type = TXGBE_TM_NODE_TYPE_MAX; + struct txgbe_tm_shaper_profile *shaper_profile = NULL; + struct txgbe_tm_node *tm_node; + struct txgbe_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 = txgbe_node_param_check(dev, node_id, priority, weight, + params, error); + if (ret) + return ret; + + /* check if the node ID is already used */ + if (txgbe_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 */ + if (params->shaper_profile_id != RTE_TM_SHAPER_PROFILE_ID_NONE) { + shaper_profile = txgbe_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 > TXGBE_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("txgbe_tm_node", + sizeof(struct txgbe_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; + 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 */ + if (shaper_profile) + shaper_profile->reference_count++; + + return 0; + } + + /* TC or queue node */ + /* check the parent node */ + parent_node = txgbe_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 != TXGBE_TM_NODE_TYPE_PORT && + parent_node_type != TXGBE_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 == TXGBE_TM_NODE_TYPE_PORT) { + /* check TC number */ + nb_tcs = txgbe_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; + } + + txgbe_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("txgbe_tm_node", + sizeof(struct txgbe_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; + rte_memcpy(&tm_node->params, params, + sizeof(struct rte_tm_node_params)); + if (parent_node_type == TXGBE_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 */ + if (shaper_profile) + shaper_profile->reference_count++; + + return 0; +} + +static int +txgbe_node_delete(struct rte_eth_dev *dev, uint32_t node_id, + struct rte_tm_error *error) +{ + struct txgbe_tm_conf *tm_conf = TXGBE_DEV_TM_CONF(dev); + enum txgbe_tm_node_type node_type = TXGBE_TM_NODE_TYPE_MAX; + struct txgbe_tm_node *tm_node; + + if (!error) + return -EINVAL; + + /* if already committed */ + if (tm_conf->committed) { + error->type = RTE_TM_ERROR_TYPE_UNSPECIFIED; + error->message = "already committed"; + return -EINVAL; + } + + if (node_id == RTE_TM_NODE_ID_NULL) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "invalid node id"; + return -EINVAL; + } + + /* check the if the node id exists */ + tm_node = txgbe_tm_node_search(dev, node_id, &node_type); + if (!tm_node) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "no such node"; + return -EINVAL; + } + + /* the node should have no child */ + if (tm_node->reference_count) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = + "cannot delete a node which has children"; + return -EINVAL; + } + + /* root node */ + if (node_type == TXGBE_TM_NODE_TYPE_PORT) { + if (tm_node->shaper_profile) + tm_node->shaper_profile->reference_count--; + rte_free(tm_node); + tm_conf->root = NULL; + return 0; + } + + /* TC or queue node */ + if (tm_node->shaper_profile) + tm_node->shaper_profile->reference_count--; + tm_node->parent->reference_count--; + if (node_type == TXGBE_TM_NODE_TYPE_TC) { + TAILQ_REMOVE(&tm_conf->tc_list, tm_node, node); + tm_conf->nb_tc_node--; + } else { + TAILQ_REMOVE(&tm_conf->queue_list, tm_node, node); + tm_conf->nb_queue_node--; + } + rte_free(tm_node); + + return 0; +} + +static int +txgbe_node_type_get(struct rte_eth_dev *dev, uint32_t node_id, + int *is_leaf, struct rte_tm_error *error) +{ + enum txgbe_tm_node_type node_type = TXGBE_TM_NODE_TYPE_MAX; + struct txgbe_tm_node *tm_node; + + if (!is_leaf || !error) + return -EINVAL; + + if (node_id == RTE_TM_NODE_ID_NULL) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "invalid node id"; + return -EINVAL; + } + + /* check if the node id exists */ + tm_node = txgbe_tm_node_search(dev, node_id, &node_type); + if (!tm_node) { + error->type = RTE_TM_ERROR_TYPE_NODE_ID; + error->message = "no such node"; + return -EINVAL; + } + + if (node_type == TXGBE_TM_NODE_TYPE_QUEUE) + *is_leaf = true; + else + *is_leaf = false; + + return 0; +} + static int txgbe_level_capabilities_get(struct rte_eth_dev *dev, uint32_t level_id, -- 2.20.1