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/* 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
#define ice_sync_arfs_fltrs(pf) do {} while (0)
#define ice_init_arfs(vsi) do {} while (0)
#define ice_clear_arfs(vsi) do {} while (0)
#define ice_remove_arfs(pf) do {} while (0)
#define ice_free_cpu_rx_rmap(vsi) do {} while (0)
#define ice_rebuild_arfs(pf) do {} while (0)
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_ */
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