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1/* SPDX-License-Identifier: GPL-2.0 */2/* Copyright (C) 2018-2020, Intel Corporation. */3 4#ifndef _ICE_ARFS_H_5#define _ICE_ARFS_H_6 7#include "ice_fdir.h"8 9enum ice_arfs_fltr_state {10 ICE_ARFS_INACTIVE,11 ICE_ARFS_ACTIVE,12 ICE_ARFS_TODEL,13};14 15struct ice_arfs_entry {16 struct ice_fdir_fltr fltr_info;17 struct hlist_node list_entry;18 u64 time_activated; /* only valid for UDP flows */19 u32 flow_id;20 /* fltr_state = 0 - ICE_ARFS_INACTIVE:21 * filter needs to be updated or programmed in HW.22 * fltr_state = 1 - ICE_ARFS_ACTIVE:23 * filter is active and programmed in HW.24 * fltr_state = 2 - ICE_ARFS_TODEL:25 * filter has been deleted from HW and needs to be removed from26 * the aRFS hash table.27 */28 u8 fltr_state;29};30 31struct ice_arfs_entry_ptr {32 struct ice_arfs_entry *arfs_entry;33 struct hlist_node list_entry;34};35 36struct ice_arfs_active_fltr_cntrs {37 atomic_t active_tcpv4_cnt;38 atomic_t active_tcpv6_cnt;39 atomic_t active_udpv4_cnt;40 atomic_t active_udpv6_cnt;41};42 43#ifdef CONFIG_RFS_ACCEL44int45ice_rx_flow_steer(struct net_device *netdev, const struct sk_buff *skb,46 u16 rxq_idx, u32 flow_id);47void ice_clear_arfs(struct ice_vsi *vsi);48void ice_free_cpu_rx_rmap(struct ice_vsi *vsi);49void ice_init_arfs(struct ice_vsi *vsi);50void ice_sync_arfs_fltrs(struct ice_pf *pf);51int ice_set_cpu_rx_rmap(struct ice_vsi *vsi);52void ice_remove_arfs(struct ice_pf *pf);53void ice_rebuild_arfs(struct ice_pf *pf);54bool55ice_is_arfs_using_perfect_flow(struct ice_hw *hw,56 enum ice_fltr_ptype flow_type);57#else58static inline void ice_clear_arfs(struct ice_vsi *vsi) { }59static inline void ice_free_cpu_rx_rmap(struct ice_vsi *vsi) { }60static inline void ice_init_arfs(struct ice_vsi *vsi) { }61static inline void ice_sync_arfs_fltrs(struct ice_pf *pf) { }62static inline void ice_remove_arfs(struct ice_pf *pf) { }63static inline void ice_rebuild_arfs(struct ice_pf *pf) { }64 65static inline int ice_set_cpu_rx_rmap(struct ice_vsi __always_unused *vsi)66{67 return 0;68}69 70static inline int71ice_rx_flow_steer(struct net_device __always_unused *netdev,72 const struct sk_buff __always_unused *skb,73 u16 __always_unused rxq_idx, u32 __always_unused flow_id)74{75 return -EOPNOTSUPP;76}77 78static inline bool79ice_is_arfs_using_perfect_flow(struct ice_hw __always_unused *hw,80 enum ice_fltr_ptype __always_unused flow_type)81{82 return false;83}84#endif /* CONFIG_RFS_ACCEL */85#endif /* _ICE_ARFS_H_ */86