From a1c1746d9964cedaabd6f47335de59622c75c73b Mon Sep 17 00:00:00 2001 From: Wenzhuo Lu Date: Thu, 29 Jun 2017 12:23:43 +0800 Subject: [PATCH] net/i40e: support deleting TM node Add the support of the Traffic Management API, rte_tm_node_delete. Signed-off-by: Wenzhuo Lu --- drivers/net/i40e/i40e_tm.c | 66 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) diff --git a/drivers/net/i40e/i40e_tm.c b/drivers/net/i40e/i40e_tm.c index 3017185a7c..b05eff881b 100644 --- a/drivers/net/i40e/i40e_tm.c +++ b/drivers/net/i40e/i40e_tm.c @@ -51,12 +51,15 @@ static int i40e_node_add(struct rte_eth_dev *dev, uint32_t node_id, uint32_t weight, uint32_t level_id, struct rte_tm_node_params *params, struct rte_tm_error *error); +static int i40e_node_delete(struct rte_eth_dev *dev, uint32_t node_id, + struct rte_tm_error *error); const struct rte_tm_ops i40e_tm_ops = { .capabilities_get = i40e_tm_capabilities_get, .shaper_profile_add = i40e_shaper_profile_add, .shaper_profile_delete = i40e_shaper_profile_del, .node_add = i40e_node_add, + .node_delete = i40e_node_delete, }; int @@ -615,3 +618,66 @@ i40e_node_add(struct rte_eth_dev *dev, uint32_t node_id, return 0; } + +static int +i40e_node_delete(struct rte_eth_dev *dev, uint32_t node_id, + struct rte_tm_error *error) +{ + struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private); + enum i40e_tm_node_type node_type = I40E_TM_NODE_TYPE_MAX; + struct i40e_tm_node *tm_node; + + if (!error) + return -EINVAL; + + /* if already committed */ + if (pf->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 if the node id exists */ + tm_node = i40e_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 == I40E_TM_NODE_TYPE_PORT) { + tm_node->shaper_profile->reference_count--; + rte_free(tm_node); + pf->tm_conf.root = NULL; + return 0; + } + + /* TC or queue node */ + tm_node->shaper_profile->reference_count--; + tm_node->parent->reference_count--; + if (node_type == I40E_TM_NODE_TYPE_TC) { + TAILQ_REMOVE(&pf->tm_conf.tc_list, tm_node, node); + pf->tm_conf.nb_tc_node--; + } else { + TAILQ_REMOVE(&pf->tm_conf.queue_list, tm_node, node); + pf->tm_conf.nb_queue_node--; + } + rte_free(tm_node); + + return 0; +} -- 2.20.1