[dpdk-stable] [PATCH] net/i40e: fix recreate a flexible FDIR rule failed

[Guinan Sun]

This patch fixes the failure of recreate flexible fdir rule.
The root cause is that the flex_mask_flag is not reset during
flow destroy and flow flush.

Fixes: 6ced3dd72f5f ("net/i40e: support flexible payload parsing for FDIR")
Cc: stable at dpdk.org

Signed-off-by: Guinan Sun <guinanx.sun at intel.com>
---
 drivers/net/i40e/i40e_fdir.c | 2 ++
 drivers/net/i40e/i40e_flow.c | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/i40e/i40e_fdir.c b/drivers/net/i40e/i40e_fdir.c
index 8e87b4a00..aa8e72949 100644
--- a/drivers/net/i40e/i40e_fdir.c
+++ b/drivers/net/i40e/i40e_fdir.c
@@ -1882,6 +1882,8 @@ i40e_flow_add_del_fdir_filter(struct rte_eth_dev *dev,
 			return -EINVAL;
 		}
 
+		pf->fdir.flex_mask_flag[pctype] = 0;
+
 		if (fdir_info->fdir_invalprio == 1)
 			wait_status = false;
 	}
diff --git a/drivers/net/i40e/i40e_flow.c b/drivers/net/i40e/i40e_flow.c
index 51d8fdd79..adc5da1c5 100644
--- a/drivers/net/i40e/i40e_flow.c
+++ b/drivers/net/i40e/i40e_flow.c
@@ -5679,8 +5679,10 @@ i40e_flow_flush_fdir_filter(struct i40e_pf *pf)
 			I40E_MAX_FDIR_FILTER_NUM);
 
 		for (pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
-		     pctype <= I40E_FILTER_PCTYPE_L2_PAYLOAD; pctype++)
+		     pctype <= I40E_FILTER_PCTYPE_L2_PAYLOAD; pctype++) {
 			pf->fdir.inset_flag[pctype] = 0;
+			pf->fdir.flex_mask_flag[pctype] = 0;
+		}
 
 		/* Disable FDIR processing as all FDIR rules are now flushed */
 		i40e_fdir_rx_proc_enable(dev, 0);
-- 
2.17.1