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net/i40e: support deleting TM node

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Add the support of the Traffic Management API,
rte_tm_node_delete.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
This commit is contained in:
Wenzhuo Lu 2017-06-29 12:23:43 +08:00 committed by Cristian Dumitrescu
parent 03a249b62b
commit a1c1746d99
1 changed files with 66 additions and 0 deletions
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66
drivers/net/i40e/i40e_tm.c
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@ -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;
}