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/* 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_esw_flow_attr;
struct mlx5e_tc_mod_hdr_acts;
struct mlx5_rep_uplink_priv;
struct mlx5e_tc_flow;
struct mlx5e_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 = 2,\
.soffset = MLX5_BYTE_OFF(fte_match_param,\
misc_parameters_2.metadata_reg_c_2) + 2,\
}
#define ctstate_to_reg_ct {\
.mfield = MLX5_ACTION_IN_FIELD_METADATA_REG_C_2,\
.moffset = 2,\
.mlen = 2,\
.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 = 4,\
.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 = 4,\
.soffset = MLX5_BYTE_OFF(fte_match_param,\
misc_parameters_2.metadata_reg_c_4),\
}
#define fteid_to_reg_ct {\
.mfield = MLX5_ACTION_IN_FIELD_METADATA_REG_C_5,\
.moffset = 0,\
.mlen = 4,\
.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 = 1,\
.soffset = MLX5_BYTE_OFF(fte_match_param,\
misc_parameters_2.metadata_reg_c_1) + 3,\
}
#define REG_MAPPING_MLEN(reg) (mlx5e_tc_attr_to_reg_mappings[reg].mlen)
#define ZONE_RESTORE_BITS (REG_MAPPING_MLEN(ZONE_RESTORE_TO_REG) * 8)
#define ZONE_RESTORE_MAX GENMASK(ZONE_RESTORE_BITS - 1, 0)
#if IS_ENABLED(CONFIG_MLX5_TC_CT)
int
mlx5_tc_ct_init(struct mlx5_rep_uplink_priv *uplink_priv);
void
mlx5_tc_ct_clean(struct mlx5_rep_uplink_priv *uplink_priv);
void
mlx5_tc_ct_match_del(struct mlx5e_priv *priv, struct mlx5_ct_attr *ct_attr);
int
mlx5_tc_ct_match_add(struct mlx5e_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 mlx5e_priv *priv,
struct mlx5_flow_spec *spec);
int
mlx5_tc_ct_parse_action(struct mlx5e_priv *priv,
struct mlx5_esw_flow_attr *attr,
const struct flow_action_entry *act,
struct netlink_ext_ack *extack);
struct mlx5_flow_handle *
mlx5_tc_ct_flow_offload(struct mlx5e_priv *priv,
struct mlx5e_tc_flow *flow,
struct mlx5_flow_spec *spec,
struct mlx5_esw_flow_attr *attr,
struct mlx5e_tc_mod_hdr_acts *mod_hdr_acts);
void
mlx5_tc_ct_delete_flow(struct mlx5e_priv *priv,
struct mlx5e_tc_flow *flow,
struct mlx5_esw_flow_attr *attr);
bool
mlx5e_tc_ct_restore_flow(struct mlx5_rep_uplink_priv *uplink_priv,
struct sk_buff *skb, u8 zone_restore_id);
#else /* CONFIG_MLX5_TC_CT */
static inline int
mlx5_tc_ct_init(struct mlx5_rep_uplink_priv *uplink_priv)
{
return 0;
}
static inline void
mlx5_tc_ct_clean(struct mlx5_rep_uplink_priv *uplink_priv)
{
}
static inline void
mlx5_tc_ct_match_del(struct mlx5e_priv *priv, struct mlx5_ct_attr *ct_attr) {}
static inline int
mlx5_tc_ct_match_add(struct mlx5e_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.");
netdev_warn(priv->netdev, "mlx5 tc ct offload isn't enabled.\n");
return -EOPNOTSUPP;
}
static inline int
mlx5_tc_ct_add_no_trk_match(struct mlx5e_priv *priv,
struct mlx5_flow_spec *spec)
{
return 0;
}
static inline int
mlx5_tc_ct_parse_action(struct mlx5e_priv *priv,
struct mlx5_esw_flow_attr *attr,
const struct flow_action_entry *act,
struct netlink_ext_ack *extack)
{
NL_SET_ERR_MSG_MOD(extack, "mlx5 tc ct offload isn't enabled.");
netdev_warn(priv->netdev, "mlx5 tc ct offload isn't enabled.\n");
return -EOPNOTSUPP;
}
static inline struct mlx5_flow_handle *
mlx5_tc_ct_flow_offload(struct mlx5e_priv *priv,
struct mlx5e_tc_flow *flow,
struct mlx5_flow_spec *spec,
struct mlx5_esw_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 mlx5e_priv *priv,
struct mlx5e_tc_flow *flow,
struct mlx5_esw_flow_attr *attr)
{
}
static inline bool
mlx5e_tc_ct_restore_flow(struct mlx5_rep_uplink_priv *uplink_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__ */
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