| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* Copyright (C) 2018-2020, Intel Corporation. */ |
| |
| #ifndef _ICE_ARFS_H_ |
| #define _ICE_ARFS_H_ |
| enum ice_arfs_fltr_state { |
| ICE_ARFS_INACTIVE, |
| ICE_ARFS_ACTIVE, |
| ICE_ARFS_TODEL, |
| }; |
| |
| struct ice_arfs_entry { |
| struct ice_fdir_fltr fltr_info; |
| struct hlist_node list_entry; |
| u64 time_activated; /* only valid for UDP flows */ |
| u32 flow_id; |
| /* fltr_state = 0 - ICE_ARFS_INACTIVE: |
| * filter needs to be updated or programmed in HW. |
| * fltr_state = 1 - ICE_ARFS_ACTIVE: |
| * filter is active and programmed in HW. |
| * fltr_state = 2 - ICE_ARFS_TODEL: |
| * filter has been deleted from HW and needs to be removed from |
| * the aRFS hash table. |
| */ |
| u8 fltr_state; |
| }; |
| |
| struct ice_arfs_entry_ptr { |
| struct ice_arfs_entry *arfs_entry; |
| struct hlist_node list_entry; |
| }; |
| |
| struct ice_arfs_active_fltr_cntrs { |
| atomic_t active_tcpv4_cnt; |
| atomic_t active_tcpv6_cnt; |
| atomic_t active_udpv4_cnt; |
| atomic_t active_udpv6_cnt; |
| }; |
| |
| #ifdef CONFIG_RFS_ACCEL |
| int |
| ice_rx_flow_steer(struct net_device *netdev, const struct sk_buff *skb, |
| u16 rxq_idx, u32 flow_id); |
| void ice_clear_arfs(struct ice_vsi *vsi); |
| void ice_free_cpu_rx_rmap(struct ice_vsi *vsi); |
| void ice_init_arfs(struct ice_vsi *vsi); |
| void ice_sync_arfs_fltrs(struct ice_pf *pf); |
| int ice_set_cpu_rx_rmap(struct ice_vsi *vsi); |
| void ice_remove_arfs(struct ice_pf *pf); |
| void ice_rebuild_arfs(struct ice_pf *pf); |
| bool |
| ice_is_arfs_using_perfect_flow(struct ice_hw *hw, |
| enum ice_fltr_ptype flow_type); |
| #else |
| static inline void ice_clear_arfs(struct ice_vsi *vsi) { } |
| static inline void ice_free_cpu_rx_rmap(struct ice_vsi *vsi) { } |
| static inline void ice_init_arfs(struct ice_vsi *vsi) { } |
| static inline void ice_sync_arfs_fltrs(struct ice_pf *pf) { } |
| static inline void ice_remove_arfs(struct ice_pf *pf) { } |
| static inline void ice_rebuild_arfs(struct ice_pf *pf) { } |
| |
| static inline int ice_set_cpu_rx_rmap(struct ice_vsi __always_unused *vsi) |
| { |
| return 0; |
| } |
| |
| static inline int |
| ice_rx_flow_steer(struct net_device __always_unused *netdev, |
| const struct sk_buff __always_unused *skb, |
| u16 __always_unused rxq_idx, u32 __always_unused flow_id) |
| { |
| return -EOPNOTSUPP; |
| } |
| |
| static inline bool |
| ice_is_arfs_using_perfect_flow(struct ice_hw __always_unused *hw, |
| enum ice_fltr_ptype __always_unused flow_type) |
| { |
| return false; |
| } |
| #endif /* CONFIG_RFS_ACCEL */ |
| #endif /* _ICE_ARFS_H_ */ |
