diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_arfs.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_arfs.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_arfs.h b/drivers/net/ethernet/intel/ice/ice_arfs.h new file mode 100644 index 000000000..9669ad9bf --- /dev/null +++ b/drivers/net/ethernet/intel/ice/ice_arfs.h @@ -0,0 +1,85 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2018-2020, Intel Corporation. */ + +#ifndef _ICE_ARFS_H_ +#define _ICE_ARFS_H_ + +#include "ice_fdir.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_ */ |