diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/steering/mlx5dr.h')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/steering/mlx5dr.h | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/mlx5dr.h b/drivers/net/ethernet/mellanox/mlx5/core/steering/mlx5dr.h new file mode 100644 index 000000000..226a0d7bb --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/mlx5dr.h @@ -0,0 +1,192 @@ +/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ +/* Copyright (c) 2019, Mellanox Technologies */ + +#ifndef _MLX5DR_H_ +#define _MLX5DR_H_ + +struct mlx5dr_domain; +struct mlx5dr_table; +struct mlx5dr_matcher; +struct mlx5dr_rule; +struct mlx5dr_action; + +enum mlx5dr_domain_type { + MLX5DR_DOMAIN_TYPE_NIC_RX, + MLX5DR_DOMAIN_TYPE_NIC_TX, + MLX5DR_DOMAIN_TYPE_FDB, +}; + +enum mlx5dr_domain_sync_flags { + MLX5DR_DOMAIN_SYNC_FLAGS_SW = 1 << 0, + MLX5DR_DOMAIN_SYNC_FLAGS_HW = 1 << 1, +}; + +enum mlx5dr_action_reformat_type { + DR_ACTION_REFORMAT_TYP_TNL_L2_TO_L2, + DR_ACTION_REFORMAT_TYP_L2_TO_TNL_L2, + DR_ACTION_REFORMAT_TYP_TNL_L3_TO_L2, + DR_ACTION_REFORMAT_TYP_L2_TO_TNL_L3, + DR_ACTION_REFORMAT_TYP_INSERT_HDR, + DR_ACTION_REFORMAT_TYP_REMOVE_HDR, +}; + +struct mlx5dr_match_parameters { + size_t match_sz; + u64 *match_buf; /* Device spec format */ +}; + +struct mlx5dr_action_dest { + struct mlx5dr_action *dest; + struct mlx5dr_action *reformat; +}; + +struct mlx5dr_domain * +mlx5dr_domain_create(struct mlx5_core_dev *mdev, enum mlx5dr_domain_type type); + +int mlx5dr_domain_destroy(struct mlx5dr_domain *domain); + +int mlx5dr_domain_sync(struct mlx5dr_domain *domain, u32 flags); + +void mlx5dr_domain_set_peer(struct mlx5dr_domain *dmn, + struct mlx5dr_domain *peer_dmn); + +struct mlx5dr_table * +mlx5dr_table_create(struct mlx5dr_domain *domain, u32 level, u32 flags, + u16 uid); + +struct mlx5dr_table * +mlx5dr_table_get_from_fs_ft(struct mlx5_flow_table *ft); + +int mlx5dr_table_destroy(struct mlx5dr_table *table); + +u32 mlx5dr_table_get_id(struct mlx5dr_table *table); + +struct mlx5dr_matcher * +mlx5dr_matcher_create(struct mlx5dr_table *table, + u32 priority, + u8 match_criteria_enable, + struct mlx5dr_match_parameters *mask); + +int mlx5dr_matcher_destroy(struct mlx5dr_matcher *matcher); + +struct mlx5dr_rule * +mlx5dr_rule_create(struct mlx5dr_matcher *matcher, + struct mlx5dr_match_parameters *value, + size_t num_actions, + struct mlx5dr_action *actions[], + u32 flow_source); + +int mlx5dr_rule_destroy(struct mlx5dr_rule *rule); + +int mlx5dr_table_set_miss_action(struct mlx5dr_table *tbl, + struct mlx5dr_action *action); + +struct mlx5dr_action * +mlx5dr_action_create_dest_table_num(struct mlx5dr_domain *dmn, u32 table_num); + +struct mlx5dr_action * +mlx5dr_action_create_dest_table(struct mlx5dr_table *table); + +struct mlx5dr_action * +mlx5dr_action_create_dest_flow_fw_table(struct mlx5dr_domain *domain, + struct mlx5_flow_table *ft); + +struct mlx5dr_action * +mlx5dr_action_create_dest_vport(struct mlx5dr_domain *domain, + u16 vport, u8 vhca_id_valid, + u16 vhca_id); + +struct mlx5dr_action * +mlx5dr_action_create_mult_dest_tbl(struct mlx5dr_domain *dmn, + struct mlx5dr_action_dest *dests, + u32 num_of_dests, + bool ignore_flow_level, + u32 flow_source); + +struct mlx5dr_action *mlx5dr_action_create_drop(void); + +struct mlx5dr_action *mlx5dr_action_create_tag(u32 tag_value); + +struct mlx5dr_action * +mlx5dr_action_create_flow_sampler(struct mlx5dr_domain *dmn, u32 sampler_id); + +struct mlx5dr_action * +mlx5dr_action_create_flow_counter(u32 counter_id); + +struct mlx5dr_action * +mlx5dr_action_create_packet_reformat(struct mlx5dr_domain *dmn, + enum mlx5dr_action_reformat_type reformat_type, + u8 reformat_param_0, + u8 reformat_param_1, + size_t data_sz, + void *data); + +struct mlx5dr_action * +mlx5dr_action_create_modify_header(struct mlx5dr_domain *domain, + u32 flags, + size_t actions_sz, + __be64 actions[]); + +struct mlx5dr_action *mlx5dr_action_create_pop_vlan(void); + +struct mlx5dr_action * +mlx5dr_action_create_push_vlan(struct mlx5dr_domain *domain, __be32 vlan_hdr); + +struct mlx5dr_action * +mlx5dr_action_create_aso(struct mlx5dr_domain *dmn, + u32 obj_id, + u8 return_reg_id, + u8 aso_type, + u8 init_color, + u8 meter_id); + +int mlx5dr_action_destroy(struct mlx5dr_action *action); + +static inline bool +mlx5dr_is_supported(struct mlx5_core_dev *dev) +{ + return MLX5_CAP_GEN(dev, roce) && + (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, sw_owner) || + (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, sw_owner_v2) && + (MLX5_CAP_GEN(dev, steering_format_version) <= + MLX5_STEERING_FORMAT_CONNECTX_7))); +} + +/* buddy functions & structure */ + +struct mlx5dr_icm_mr; + +struct mlx5dr_icm_buddy_mem { + unsigned long **bitmap; + unsigned int *num_free; + u32 max_order; + struct list_head list_node; + struct mlx5dr_icm_mr *icm_mr; + struct mlx5dr_icm_pool *pool; + + /* This is the list of used chunks. HW may be accessing this memory */ + struct list_head used_list; + u64 used_memory; + + /* Hardware may be accessing this memory but at some future, + * undetermined time, it might cease to do so. + * sync_ste command sets them free. + */ + struct list_head hot_list; + + /* Memory optimisation */ + struct mlx5dr_ste *ste_arr; + struct list_head *miss_list; + u8 *hw_ste_arr; +}; + +int mlx5dr_buddy_init(struct mlx5dr_icm_buddy_mem *buddy, + unsigned int max_order); +void mlx5dr_buddy_cleanup(struct mlx5dr_icm_buddy_mem *buddy); +int mlx5dr_buddy_alloc_mem(struct mlx5dr_icm_buddy_mem *buddy, + unsigned int order, + unsigned int *segment); +void mlx5dr_buddy_free_mem(struct mlx5dr_icm_buddy_mem *buddy, + unsigned int seg, unsigned int order); + +#endif /* _MLX5DR_H_ */ |