ixgbe: support flow director flush

This patch implement RTE_ETH_FILTER_FLUSH operation to delete all
flow director filters in ixgbe driver.

Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>

diff --git a/lib/librte_pmd_ixgbe/ixgbe_fdir.c b/lib/librte_pmd_ixgbe/ixgbe_fdir.c
index cc446fe..3564fb0 100644 (file)
--- a/lib/librte_pmd_ixgbe/ixgbe_fdir.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_fdir.c
@@ -130,6 +130,7 @@ static int ixgbe_add_del_fdir_filter(struct rte_eth_dev *dev,
                              const struct rte_eth_fdir_filter *fdir_filter,
                              bool del,
                              bool update);
+static int ixgbe_fdir_flush(struct rte_eth_dev *dev);
 static void ixgbe_fdir_info_get(struct rte_eth_dev *dev,
                        struct rte_eth_fdir_info *fdir_info);
 static void ixgbe_fdir_stats_get(struct rte_eth_dev *dev,
@@ -964,6 +965,28 @@ ixgbe_add_del_fdir_filter(struct rte_eth_dev *dev,
        return err;
 }
 
+static int
+ixgbe_fdir_flush(struct rte_eth_dev *dev)
+{
+       struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       struct ixgbe_hw_fdir_info *info =
+                       IXGBE_DEV_PRIVATE_TO_FDIR_INFO(dev->data->dev_private);
+       int ret;
+
+       ret = ixgbe_reinit_fdir_tables_82599(hw);
+       if (ret < 0) {
+               PMD_INIT_LOG(ERR, "Failed to re-initialize FD table.");
+               return ret;
+       }
+
+       info->f_add = 0;
+       info->f_remove = 0;
+       info->add = 0;
+       info->remove = 0;
+
+       return ret;
+}
+
 #define FDIRENTRIES_NUM_SHIFT 10
 static void
 ixgbe_fdir_info_get(struct rte_eth_dev *dev, struct rte_eth_fdir_info *fdir_info)
@@ -1103,6 +1126,9 @@ ixgbe_fdir_ctrl_func(struct rte_eth_dev *dev,
                ret = ixgbe_add_del_fdir_filter(dev,
                        (struct rte_eth_fdir_filter *)arg, TRUE, FALSE);
                break;
+       case RTE_ETH_FILTER_FLUSH:
+               ret = ixgbe_fdir_flush(dev);
+               break;
        case RTE_ETH_FILTER_INFO:
                ixgbe_fdir_info_get(dev, (struct rte_eth_fdir_info *)arg);
                break;