net/i40e: support getting TM level capability

Add the support of the Traffic Management API,
rte_tm_level_capabilities_get.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>

diff --git a/drivers/net/i40e/i40e_tm.c b/drivers/net/i40e/i40e_tm.c
index 4e85a9d..8a19b5e 100644 (file)
--- a/drivers/net/i40e/i40e_tm.c
+++ b/drivers/net/i40e/i40e_tm.c
@@ -55,6 +55,10 @@ static int i40e_node_delete(struct rte_eth_dev *dev, uint32_t node_id,
                            struct rte_tm_error *error);
 static int i40e_node_type_get(struct rte_eth_dev *dev, uint32_t node_id,
                              int *is_leaf, struct rte_tm_error *error);
+static int i40e_level_capabilities_get(struct rte_eth_dev *dev,
+                                      uint32_t level_id,
+                                      struct rte_tm_level_capabilities *cap,
+                                      struct rte_tm_error *error);
 
 const struct rte_tm_ops i40e_tm_ops = {
        .capabilities_get = i40e_tm_capabilities_get,
@@ -63,6 +67,7 @@ const struct rte_tm_ops i40e_tm_ops = {
        .node_add = i40e_node_add,
        .node_delete = i40e_node_delete,
        .node_type_get = i40e_node_type_get,
+       .level_capabilities_get = i40e_level_capabilities_get,
 };
 
 int
@@ -716,3 +721,72 @@ i40e_node_type_get(struct rte_eth_dev *dev, uint32_t node_id,
 
        return 0;
 }
+
+static int
+i40e_level_capabilities_get(struct rte_eth_dev *dev,
+                           uint32_t level_id,
+                           struct rte_tm_level_capabilities *cap,
+                           struct rte_tm_error *error)
+{
+       struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+       if (!cap || !error)
+               return -EINVAL;
+
+       if (level_id >= I40E_TM_NODE_TYPE_MAX) {
+               error->type = RTE_TM_ERROR_TYPE_LEVEL_ID;
+               error->message = "too deep level";
+               return -EINVAL;
+       }
+
+       /* root node */
+       if (level_id == I40E_TM_NODE_TYPE_PORT) {
+               cap->n_nodes_max = 1;
+               cap->n_nodes_nonleaf_max = 1;
+               cap->n_nodes_leaf_max = 0;
+               cap->non_leaf_nodes_identical = true;
+               cap->leaf_nodes_identical = true;
+               cap->nonleaf.shaper_private_supported = true;
+               cap->nonleaf.shaper_private_dual_rate_supported = false;
+               cap->nonleaf.shaper_private_rate_min = 0;
+               /* 40Gbps -> 5GBps */
+               cap->nonleaf.shaper_private_rate_max = 5000000000ull;
+               cap->nonleaf.shaper_shared_n_max = 0;
+               cap->nonleaf.sched_n_children_max = I40E_MAX_TRAFFIC_CLASS;
+               cap->nonleaf.sched_sp_n_priorities_max = 1;
+               cap->nonleaf.sched_wfq_n_children_per_group_max = 0;
+               cap->nonleaf.sched_wfq_n_groups_max = 0;
+               cap->nonleaf.sched_wfq_weight_max = 1;
+               cap->nonleaf.stats_mask = 0;
+
+               return 0;
+       }
+
+       /* TC or queue node */
+       if (level_id == I40E_TM_NODE_TYPE_TC) {
+               /* TC */
+               cap->n_nodes_max = I40E_MAX_TRAFFIC_CLASS;
+               cap->n_nodes_nonleaf_max = I40E_MAX_TRAFFIC_CLASS;
+               cap->n_nodes_leaf_max = 0;
+               cap->non_leaf_nodes_identical = true;
+       } else {
+               /* queue */
+               cap->n_nodes_max = hw->func_caps.num_tx_qp;
+               cap->n_nodes_nonleaf_max = 0;
+               cap->n_nodes_leaf_max = hw->func_caps.num_tx_qp;
+               cap->non_leaf_nodes_identical = true;
+       }
+       cap->leaf_nodes_identical = true;
+       cap->leaf.shaper_private_supported = true;
+       cap->leaf.shaper_private_dual_rate_supported = false;
+       cap->leaf.shaper_private_rate_min = 0;
+       /* 40Gbps -> 5GBps */
+       cap->leaf.shaper_private_rate_max = 5000000000ull;
+       cap->leaf.shaper_shared_n_max = 0;
+       cap->leaf.cman_head_drop_supported = false;
+       cap->leaf.cman_wred_context_private_supported = true;
+       cap->leaf.cman_wred_context_shared_n_max = 0;
+       cap->leaf.stats_mask = 0;
+
+       return 0;
+}