[PATCH v3 2/3] net/ixgbe: fix fdir mask not be reset

[Qi Zhang <qi.z.zhang@intel.com>]

When the last fdir flow be destroyed, the flag "mask_added"
should be reset, so the remain mask info will not take effect
when a new flow be added.

Fixes: a14de8b498d1 ("net/ixgbe: destroy consistent filter")
Cc: stable@dpdk.org

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
 drivers/net/ixgbe/ixgbe_flow.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ixgbe/ixgbe_flow.c b/drivers/net/ixgbe/ixgbe_flow.c
index 60ca8d8..4e64d8d 100644
--- a/drivers/net/ixgbe/ixgbe_flow.c
+++ b/drivers/net/ixgbe/ixgbe_flow.c
@@ -2639,6 +2639,8 @@ ixgbe_flow_destroy(struct rte_eth_dev *dev,
 	struct ixgbe_eth_l2_tunnel_conf_ele *l2_tn_filter_ptr;
 	struct ixgbe_fdir_rule_ele *fdir_rule_ptr;
 	struct ixgbe_flow_mem *ixgbe_flow_mem_ptr;
+	struct ixgbe_hw_fdir_info *fdir_info =
+		IXGBE_DEV_PRIVATE_TO_FDIR_INFO(dev->data->dev_private);
 
 	switch (filter_type) {
 	case RTE_ETH_FILTER_NTUPLE:
@@ -2691,6 +2693,8 @@ ixgbe_flow_destroy(struct rte_eth_dev *dev,
 			TAILQ_REMOVE(&filter_fdir_list,
 				fdir_rule_ptr, entries);
 			rte_free(fdir_rule_ptr);
+			if (TAILQ_EMPTY(&filter_fdir_list))
+				fdir_info->mask_added = false;
 		}
 		break;
 	case RTE_ETH_FILTER_L2_TUNNEL:
-- 
2.7.4