[Intel-wired-lan] [PATCH net v2] ice: add FDIR counter reset in FDIR init stage

[Lingyu Liu]

From: Junfeng Guo <junfeng.guo at intel.com>

This patch added the missing FDIR counters reset process when
FDIR inits. Without this patch, when VF initializes or resets,
all the FDIR counters will not be cleaned, which may cause
unexpected behaviors for future FDIR rule create (e.g., rule
conflict).

Fixes: 1f7ea1cd6a37 ("ice: Enable FDIR Configure for AVF")
Signed-off-by: Junfeng Guo <junfeng.guo at intel.com>
Signed-off-by: Lingyu Liu <lingyu.liu at intel.com>
---
v2: change commit message to apply more to a kernel use
---
 drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c
index e6ef6b303222..60c9da4aac1d 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c
@@ -541,6 +541,20 @@ static void ice_vc_fdir_rem_prof_all(struct ice_vf *vf)
 	}
 }
 
+/**
+ * ice_vc_fdir_reset_cnt_all - reset all FDIR counters for this VF FDIR
+ * @fdir: pointer to the VF FDIR structure
+ */
+static void ice_vc_fdir_reset_cnt_all(struct ice_vf_fdir *fdir)
+{
+	enum ice_fltr_ptype flow = ICE_FLTR_PTYPE_NONF_NONE;
+
+	for (; flow < ICE_FLTR_PTYPE_MAX; flow++) {
+		fdir->fdir_fltr_cnt[flow][0] = 0;
+		fdir->fdir_fltr_cnt[flow][1] = 0;
+	}
+}
+
 /**
  * ice_vc_fdir_write_flow_prof
  * @vf: pointer to the VF structure
@@ -1924,6 +1938,7 @@ void ice_vf_fdir_init(struct ice_vf *vf)
 	spin_lock_init(&fdir->ctx_lock);
 	fdir->ctx_irq.flags = 0;
 	fdir->ctx_done.flags = 0;
+	ice_vc_fdir_reset_cnt_all(fdir);
 }
 
 /**
-- 
2.25.1