ice: Support displaying ntuple rules

Add functionality for ethtool --show-ntuple, allowing for filters to be
displayed when set functionality is added. Add statistics related to
Flow Director matches and status.

Signed-off-by: Henry Tieman <henry.w.tieman@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_fdir.c b/drivers/net/ethernet/intel/ice/ice_fdir.c
index 878fa4df9453..1f423e50182c 100644
--- a/drivers/net/ethernet/intel/ice/ice_fdir.c
+++ b/drivers/net/ethernet/intel/ice/ice_fdir.c
@@ -52,3 +52,36 @@ ice_alloc_fd_shrd_item(struct ice_hw *hw, u16 *cntr_id, u16 num_fltr)
 				  ICE_AQC_RES_TYPE_FLAG_DEDICATED, num_fltr,
 				  cntr_id);
 }
+
+/**
+ * ice_get_fdir_cnt_all - get the number of Flow Director filters
+ * @hw: hardware data structure
+ *
+ * Returns the number of filters available on device
+ */
+int ice_get_fdir_cnt_all(struct ice_hw *hw)
+{
+	return hw->func_caps.fd_fltr_guar + hw->func_caps.fd_fltr_best_effort;
+}
+
+/**
+ * ice_fdir_find_by_idx - find filter with idx
+ * @hw: pointer to hardware structure
+ * @fltr_idx: index to find.
+ *
+ * Returns pointer to filter if found or null
+ */
+struct ice_fdir_fltr *
+ice_fdir_find_fltr_by_idx(struct ice_hw *hw, u32 fltr_idx)
+{
+	struct ice_fdir_fltr *rule;
+
+	list_for_each_entry(rule, &hw->fdir_list_head, fltr_node) {
+		/* rule ID found in the list */
+		if (fltr_idx == rule->fltr_id)
+			return rule;
+		if (fltr_idx < rule->fltr_id)
+			break;
+	}
+	return NULL;
+}