diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.h')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.h | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.h b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.h new file mode 100644 index 000000000..5bbd6b928 --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.h @@ -0,0 +1,220 @@ +/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ +/* Copyright (c) 2018 Mellanox Technologies. */ + +#ifndef __MLX5_EN_TC_CT_H__ +#define __MLX5_EN_TC_CT_H__ + +#include <net/pkt_cls.h> +#include <linux/mlx5/fs.h> +#include <net/tc_act/tc_ct.h> + +#include "en.h" + +struct mlx5_flow_attr; +struct mlx5e_tc_mod_hdr_acts; +struct mlx5_rep_uplink_priv; +struct mlx5e_tc_flow; +struct mlx5e_priv; + +struct mlx5_fs_chains; +struct mlx5_tc_ct_priv; +struct mlx5_ct_flow; + +struct nf_flowtable; + +struct mlx5_ct_attr { + u16 zone; + u16 ct_action; + struct mlx5_ct_flow *ct_flow; + struct nf_flowtable *nf_ft; + u32 ct_labels_id; +}; + +#define zone_to_reg_ct {\ + .mfield = MLX5_ACTION_IN_FIELD_METADATA_REG_C_2,\ + .moffset = 0,\ + .mlen = 16,\ + .soffset = MLX5_BYTE_OFF(fte_match_param,\ + misc_parameters_2.metadata_reg_c_2),\ +} + +#define ctstate_to_reg_ct {\ + .mfield = MLX5_ACTION_IN_FIELD_METADATA_REG_C_2,\ + .moffset = 16,\ + .mlen = 16,\ + .soffset = MLX5_BYTE_OFF(fte_match_param,\ + misc_parameters_2.metadata_reg_c_2),\ +} + +#define mark_to_reg_ct {\ + .mfield = MLX5_ACTION_IN_FIELD_METADATA_REG_C_3,\ + .moffset = 0,\ + .mlen = 32,\ + .soffset = MLX5_BYTE_OFF(fte_match_param,\ + misc_parameters_2.metadata_reg_c_3),\ +} + +#define labels_to_reg_ct {\ + .mfield = MLX5_ACTION_IN_FIELD_METADATA_REG_C_4,\ + .moffset = 0,\ + .mlen = 32,\ + .soffset = MLX5_BYTE_OFF(fte_match_param,\ + misc_parameters_2.metadata_reg_c_4),\ +} + +/* 8 LSB of metadata C5 are reserved for packet color */ +#define fteid_to_reg_ct {\ + .mfield = MLX5_ACTION_IN_FIELD_METADATA_REG_C_5,\ + .moffset = 8,\ + .mlen = 24,\ + .soffset = MLX5_BYTE_OFF(fte_match_param,\ + misc_parameters_2.metadata_reg_c_5),\ +} + +#define zone_restore_to_reg_ct {\ + .mfield = MLX5_ACTION_IN_FIELD_METADATA_REG_C_1,\ + .moffset = 0,\ + .mlen = ESW_ZONE_ID_BITS,\ + .soffset = MLX5_BYTE_OFF(fte_match_param,\ + misc_parameters_2.metadata_reg_c_1),\ +} + +#define nic_zone_restore_to_reg_ct {\ + .mfield = MLX5_ACTION_IN_FIELD_METADATA_REG_B,\ + .moffset = 16,\ + .mlen = ESW_ZONE_ID_BITS,\ +} + +#define MLX5_CT_ZONE_BITS MLX5_REG_MAPPING_MBITS(ZONE_TO_REG) +#define MLX5_CT_ZONE_MASK MLX5_REG_MAPPING_MASK(ZONE_TO_REG) + +#if IS_ENABLED(CONFIG_MLX5_TC_CT) + +struct mlx5_tc_ct_priv * +mlx5_tc_ct_init(struct mlx5e_priv *priv, struct mlx5_fs_chains *chains, + struct mod_hdr_tbl *mod_hdr, + enum mlx5_flow_namespace_type ns_type, + struct mlx5e_post_act *post_act); +void +mlx5_tc_ct_clean(struct mlx5_tc_ct_priv *ct_priv); + +void +mlx5_tc_ct_match_del(struct mlx5_tc_ct_priv *priv, struct mlx5_ct_attr *ct_attr); + +int +mlx5_tc_ct_match_add(struct mlx5_tc_ct_priv *priv, + struct mlx5_flow_spec *spec, + struct flow_cls_offload *f, + struct mlx5_ct_attr *ct_attr, + struct netlink_ext_ack *extack); +int mlx5_tc_ct_add_no_trk_match(struct mlx5_flow_spec *spec); +int +mlx5_tc_ct_parse_action(struct mlx5_tc_ct_priv *priv, + struct mlx5_flow_attr *attr, + struct mlx5e_tc_mod_hdr_acts *mod_acts, + const struct flow_action_entry *act, + struct netlink_ext_ack *extack); + +struct mlx5_flow_handle * +mlx5_tc_ct_flow_offload(struct mlx5_tc_ct_priv *priv, + struct mlx5_flow_spec *spec, + struct mlx5_flow_attr *attr, + struct mlx5e_tc_mod_hdr_acts *mod_hdr_acts); +void +mlx5_tc_ct_delete_flow(struct mlx5_tc_ct_priv *priv, + struct mlx5_flow_attr *attr); + +bool +mlx5e_tc_ct_restore_flow(struct mlx5_tc_ct_priv *ct_priv, + struct sk_buff *skb, u8 zone_restore_id); + +int +mlx5_tc_ct_set_ct_clear_regs(struct mlx5_tc_ct_priv *priv, + struct mlx5e_tc_mod_hdr_acts *mod_acts); + +#else /* CONFIG_MLX5_TC_CT */ + +static inline struct mlx5_tc_ct_priv * +mlx5_tc_ct_init(struct mlx5e_priv *priv, struct mlx5_fs_chains *chains, + struct mod_hdr_tbl *mod_hdr, + enum mlx5_flow_namespace_type ns_type, + struct mlx5e_post_act *post_act) +{ + return NULL; +} + +static inline void +mlx5_tc_ct_clean(struct mlx5_tc_ct_priv *ct_priv) +{ +} + +static inline void +mlx5_tc_ct_match_del(struct mlx5_tc_ct_priv *priv, struct mlx5_ct_attr *ct_attr) {} + +static inline int +mlx5_tc_ct_match_add(struct mlx5_tc_ct_priv *priv, + struct mlx5_flow_spec *spec, + struct flow_cls_offload *f, + struct mlx5_ct_attr *ct_attr, + struct netlink_ext_ack *extack) +{ + struct flow_rule *rule = flow_cls_offload_flow_rule(f); + + if (!flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CT)) + return 0; + + NL_SET_ERR_MSG_MOD(extack, "mlx5 tc ct offload isn't enabled."); + return -EOPNOTSUPP; +} + +static inline int +mlx5_tc_ct_add_no_trk_match(struct mlx5_flow_spec *spec) +{ + return 0; +} + +static inline int +mlx5_tc_ct_set_ct_clear_regs(struct mlx5_tc_ct_priv *priv, + struct mlx5e_tc_mod_hdr_acts *mod_acts) +{ + return -EOPNOTSUPP; +} + +static inline int +mlx5_tc_ct_parse_action(struct mlx5_tc_ct_priv *priv, + struct mlx5_flow_attr *attr, + struct mlx5e_tc_mod_hdr_acts *mod_acts, + const struct flow_action_entry *act, + struct netlink_ext_ack *extack) +{ + NL_SET_ERR_MSG_MOD(extack, "mlx5 tc ct offload isn't enabled."); + return -EOPNOTSUPP; +} + +static inline struct mlx5_flow_handle * +mlx5_tc_ct_flow_offload(struct mlx5_tc_ct_priv *priv, + struct mlx5_flow_spec *spec, + struct mlx5_flow_attr *attr, + struct mlx5e_tc_mod_hdr_acts *mod_hdr_acts) +{ + return ERR_PTR(-EOPNOTSUPP); +} + +static inline void +mlx5_tc_ct_delete_flow(struct mlx5_tc_ct_priv *priv, + struct mlx5_flow_attr *attr) +{ +} + +static inline bool +mlx5e_tc_ct_restore_flow(struct mlx5_tc_ct_priv *ct_priv, + struct sk_buff *skb, u8 zone_restore_id) +{ + if (!zone_restore_id) + return true; + + return false; +} + +#endif /* !IS_ENABLED(CONFIG_MLX5_TC_CT) */ +#endif /* __MLX5_EN_TC_CT_H__ */ |