From d5329be9907723a646f8874388cdaaccba988b4d Mon Sep 17 00:00:00 2001 From: Henry Tieman Date: Fri, 15 May 2020 17:55:05 -0700 Subject: [PATCH] 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 Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c | 27 ++++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c b/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c index 42803fc..d7430ce 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); } -- 2.7.4