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authorHenry Tieman <henry.w.tieman@intel.com>2020-05-15 17:55:05 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2020-05-31 03:58:12 -0700
commitd5329be9907723a646f8874388cdaaccba988b4d (patch)
tree433fbdf46e382d7b620e41ee14c97bb48dd40087
parenta039f6fcba452fba5973798f4c641eee1ef770a1 (diff)
downloadlinux-d5329be9907723a646f8874388cdaaccba988b4d.tar.bz2
ice: fix aRFS after flow director delete
The logic was missing for adding back perfect flows after flow director filter delete. The code now adds perfect flows into the HW tables after filter delete. Signed-off-by: Henry Tieman <henry.w.tieman@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
-rw-r--r--drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c27
1 files changed, 26 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c b/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c
index 42803fc0ed18..d7430ce6af26 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c
@@ -1364,6 +1364,31 @@ release_lock:
}
/**
+ * ice_fdir_do_rem_flow - delete flow and possibly add perfect flow
+ * @pf: PF structure
+ * @flow_type: FDir flow type to release
+ */
+static void
+ice_fdir_do_rem_flow(struct ice_pf *pf, enum ice_fltr_ptype flow_type)
+{
+ struct ice_hw *hw = &pf->hw;
+ bool need_perfect = false;
+
+ if (flow_type == ICE_FLTR_PTYPE_NONF_IPV4_TCP ||
+ flow_type == ICE_FLTR_PTYPE_NONF_IPV4_UDP ||
+ flow_type == ICE_FLTR_PTYPE_NONF_IPV6_TCP ||
+ flow_type == ICE_FLTR_PTYPE_NONF_IPV6_UDP)
+ need_perfect = true;
+
+ if (need_perfect && test_bit(flow_type, hw->fdir_perfect_fltr))
+ return;
+
+ ice_fdir_rem_flow(hw, ICE_BLK_FD, flow_type);
+ if (need_perfect)
+ ice_create_init_fdir_rule(pf, flow_type);
+}
+
+/**
* ice_fdir_update_list_entry - add or delete a filter from the filter list
* @pf: PF structure
* @input: filter structure
@@ -1393,7 +1418,7 @@ ice_fdir_update_list_entry(struct ice_pf *pf, struct ice_fdir_fltr *input,
/* we just deleted the last filter of flow_type so we
* should also delete the HW filter info.
*/
- ice_fdir_rem_flow(hw, ICE_BLK_FD, old_fltr->flow_type);
+ ice_fdir_do_rem_flow(pf, old_fltr->flow_type);
list_del(&old_fltr->fltr_node);
devm_kfree(ice_hw_to_dev(hw), old_fltr);
}