net/i40e: add flow destroy function

This patch adds i40e_flow_destroy function to destroy
a flow for users.

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>

diff --git a/drivers/net/i40e/i40e_flow.c b/drivers/net/i40e/i40e_flow.c
index d4d9f50..5225948 100644 (file)
--- a/drivers/net/i40e/i40e_flow.c
+++ b/drivers/net/i40e/i40e_flow.c
@@ -68,6 +68,9 @@ static struct rte_flow *i40e_flow_create(struct rte_eth_dev *dev,
                                         const struct rte_flow_item pattern[],
                                         const struct rte_flow_action actions[],
                                         struct rte_flow_error *error);
+static int i40e_flow_destroy(struct rte_eth_dev *dev,
+                            struct rte_flow *flow,
+                            struct rte_flow_error *error);
 static int
 i40e_flow_parse_ethertype_pattern(struct rte_eth_dev *dev,
                                  const struct rte_flow_item *pattern,
@@ -117,6 +120,7 @@ static int i40e_flow_parse_tunnel_filter(struct rte_eth_dev *dev,
 const struct rte_flow_ops i40e_flow_ops = {
        .validate = i40e_flow_validate,
        .create = i40e_flow_create,
+       .destroy = i40e_flow_destroy,
 };
 
 union i40e_filter_t cons_filter;
@@ -1602,3 +1606,31 @@ free_flow:
        rte_free(flow);
        return NULL;
 }
+
+static int
+i40e_flow_destroy(struct rte_eth_dev *dev,
+                 struct rte_flow *flow,
+                 struct rte_flow_error *error)
+{
+       struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+       enum rte_filter_type filter_type = flow->filter_type;
+       int ret = 0;
+
+       switch (filter_type) {
+       default:
+               PMD_DRV_LOG(WARNING, "Filter type (%d) not supported",
+                           filter_type);
+               ret = -EINVAL;
+               break;
+       }
+
+       if (!ret) {
+               TAILQ_REMOVE(&pf->flow_list, flow, node);
+               rte_free(flow);
+       } else
+               rte_flow_error_set(error, -ret,
+                                  RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
+                                  "Failed to destroy flow.");
+
+       return ret;
+}