linux/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h

/*
 * Copyright (c) 2016, Mellanox Technologies. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#ifndef __MLX5_EN_TC_H__
#define __MLX5_EN_TC_H__

#include <net/pkt_cls.h>
#include "en.h"
#include "eswitch.h"
#include "en/tc_ct.h"
#include "en/tc_tun.h"
#include "en/tc/int_port.h"
#include "en/tc/meter.h"
#include "en_rep.h"

#define MLX5E_TC_FLOW_ID_MASK

#ifdef CONFIG_MLX5_ESWITCH

#define NIC_FLOW_ATTR_SZ
#define ESW_FLOW_ATTR_SZ
#define ns_to_attr_sz(ns)

struct mlx5_fs_chains *mlx5e_nic_chains(struct mlx5e_tc_table *tc);
int mlx5e_tc_num_filters(struct mlx5e_priv *priv, unsigned long flags);

struct mlx5e_tc_update_priv {};

struct mlx5_nic_flow_attr {};

struct mlx5_flow_attr {};

enum {};

/* Returns true if any of the flags that require skipping further TC/NF processing are set. */
static inline bool
mlx5e_tc_attr_flags_skip(u32 attr_flags)
{}

struct mlx5_rx_tun_attr {};

#define MLX5E_TC_TABLE_CHAIN_TAG_BITS
#define MLX5E_TC_TABLE_CHAIN_TAG_MASK

#define MLX5E_TC_MAX_INT_PORT_NUM

#if IS_ENABLED(CONFIG_MLX5_CLS_ACT)

struct tunnel_match_key {};

struct tunnel_match_enc_opts {};

/* Tunnel_id mapping is TUNNEL_INFO_BITS + ENC_OPTS_BITS.
 * Upper TUNNEL_INFO_BITS for general tunnel info.
 * Lower ENC_OPTS_BITS bits for enc_opts.
 */
#define TUNNEL_INFO_BITS
#define TUNNEL_INFO_BITS_MASK
#define ENC_OPTS_BITS
#define ENC_OPTS_BITS_MASK
#define TUNNEL_ID_BITS
#define TUNNEL_ID_MASK

enum {};

#define MLX5_TC_FLAG(flag)

int mlx5e_tc_esw_init(struct mlx5_rep_uplink_priv *uplink_priv);
void mlx5e_tc_esw_cleanup(struct mlx5_rep_uplink_priv *uplink_priv);

int mlx5e_tc_ht_init(struct rhashtable *tc_ht);
void mlx5e_tc_ht_cleanup(struct rhashtable *tc_ht);

int mlx5e_configure_flower(struct net_device *dev, struct mlx5e_priv *priv,
			   struct flow_cls_offload *f, unsigned long flags);
int mlx5e_delete_flower(struct net_device *dev, struct mlx5e_priv *priv,
			struct flow_cls_offload *f, unsigned long flags);

int mlx5e_stats_flower(struct net_device *dev, struct mlx5e_priv *priv,
		       struct flow_cls_offload *f, unsigned long flags);
int mlx5e_tc_fill_action_stats(struct mlx5e_priv *priv,
			       struct flow_offload_action *fl_act);

int mlx5e_tc_configure_matchall(struct mlx5e_priv *priv,
				struct tc_cls_matchall_offload *f);
int mlx5e_tc_delete_matchall(struct mlx5e_priv *priv,
			     struct tc_cls_matchall_offload *f);

struct mlx5e_encap_entry;
void mlx5e_tc_encap_flows_add(struct mlx5e_priv *priv,
			      struct mlx5e_encap_entry *e,
			      struct list_head *flow_list);
void mlx5e_tc_encap_flows_del(struct mlx5e_priv *priv,
			      struct mlx5e_encap_entry *e,
			      struct list_head *flow_list);
bool mlx5e_encap_take(struct mlx5e_encap_entry *e);
void mlx5e_encap_put(struct mlx5e_priv *priv, struct mlx5e_encap_entry *e);

void mlx5e_take_all_encap_flows(struct mlx5e_encap_entry *e, struct list_head *flow_list);
void mlx5e_put_flow_list(struct mlx5e_priv *priv, struct list_head *flow_list);

struct mlx5e_neigh_hash_entry;
struct mlx5e_encap_entry *
mlx5e_get_next_init_encap(struct mlx5e_neigh_hash_entry *nhe,
			  struct mlx5e_encap_entry *e);
void mlx5e_tc_update_neigh_used_value(struct mlx5e_neigh_hash_entry *nhe);

void mlx5e_tc_reoffload_flows_work(struct work_struct *work);

enum mlx5e_tc_attr_to_reg {};

struct mlx5e_tc_attr_to_reg_mapping {};

extern struct mlx5e_tc_attr_to_reg_mapping mlx5e_tc_attr_to_reg_mappings[];

#define MLX5_REG_MAPPING_MOFFSET(reg_id)
#define MLX5_REG_MAPPING_MBITS(reg_id)
#define MLX5_REG_MAPPING_MASK(reg_id)

bool mlx5e_is_valid_eswitch_fwd_dev(struct mlx5e_priv *priv,
				    struct net_device *out_dev);

int mlx5e_tc_match_to_reg_set(struct mlx5_core_dev *mdev,
			      struct mlx5e_tc_mod_hdr_acts *mod_hdr_acts,
			      enum mlx5_flow_namespace_type ns,
			      enum mlx5e_tc_attr_to_reg type,
			      u32 data);

void mlx5e_tc_match_to_reg_mod_hdr_change(struct mlx5_core_dev *mdev,
					  struct mlx5e_tc_mod_hdr_acts *mod_hdr_acts,
					  enum mlx5e_tc_attr_to_reg type,
					  int act_id, u32 data);

void mlx5e_tc_match_to_reg_match(struct mlx5_flow_spec *spec,
				 enum mlx5e_tc_attr_to_reg type,
				 u32 data,
				 u32 mask);

void mlx5e_tc_match_to_reg_get_match(struct mlx5_flow_spec *spec,
				     enum mlx5e_tc_attr_to_reg type,
				     u32 *data,
				     u32 *mask);

int mlx5e_tc_match_to_reg_set_and_get_id(struct mlx5_core_dev *mdev,
					 struct mlx5e_tc_mod_hdr_acts *mod_hdr_acts,
					 enum mlx5_flow_namespace_type ns,
					 enum mlx5e_tc_attr_to_reg type,
					 u32 data);

int mlx5e_tc_attach_mod_hdr(struct mlx5e_priv *priv,
			    struct mlx5e_tc_flow *flow,
			    struct mlx5_flow_attr *attr);

void mlx5e_tc_detach_mod_hdr(struct mlx5e_priv *priv,
			     struct mlx5e_tc_flow *flow,
			     struct mlx5_flow_attr *attr);

void mlx5e_tc_set_ethertype(struct mlx5_core_dev *mdev,
			    struct flow_match_basic *match, bool outer,
			    void *headers_c, void *headers_v);

int mlx5e_tc_nic_init(struct mlx5e_priv *priv);
void mlx5e_tc_nic_cleanup(struct mlx5e_priv *priv);

int mlx5e_setup_tc_block_cb(enum tc_setup_type type, void *type_data,
			    void *cb_priv);

struct mlx5_flow_handle *
mlx5e_add_offloaded_nic_rule(struct mlx5e_priv *priv,
			     struct mlx5_flow_spec *spec,
			     struct mlx5_flow_attr *attr);
void mlx5e_del_offloaded_nic_rule(struct mlx5e_priv *priv,
				  struct mlx5_flow_handle *rule,
				  struct mlx5_flow_attr *attr);

struct mlx5_flow_handle *
mlx5_tc_rule_insert(struct mlx5e_priv *priv,
		    struct mlx5_flow_spec *spec,
		    struct mlx5_flow_attr *attr);
void
mlx5_tc_rule_delete(struct mlx5e_priv *priv,
		    struct mlx5_flow_handle *rule,
		    struct mlx5_flow_attr *attr);

bool mlx5e_tc_is_vf_tunnel(struct net_device *out_dev, struct net_device *route_dev);
int mlx5e_tc_query_route_vport(struct net_device *out_dev, struct net_device *route_dev,
			       u16 *vport);

int mlx5e_set_fwd_to_int_port_actions(struct mlx5e_priv *priv,
				      struct mlx5_flow_attr *attr,
				      int ifindex,
				      enum mlx5e_tc_int_port_type type,
				      u32 *action,
				      int out_index);
#else /* CONFIG_MLX5_CLS_ACT */
static inline int  mlx5e_tc_nic_init(struct mlx5e_priv *priv) { return 0; }
static inline void mlx5e_tc_nic_cleanup(struct mlx5e_priv *priv) {}
static inline int mlx5e_tc_ht_init(struct rhashtable *tc_ht) { return 0; }
static inline void mlx5e_tc_ht_cleanup(struct rhashtable *tc_ht) {}
static inline int
mlx5e_setup_tc_block_cb(enum tc_setup_type type, void *type_data, void *cb_priv)
{ return -EOPNOTSUPP; }

#endif /* CONFIG_MLX5_CLS_ACT */

struct mlx5_flow_attr *mlx5_alloc_flow_attr(enum mlx5_flow_namespace_type type);

struct mlx5_flow_handle *
mlx5e_add_offloaded_nic_rule(struct mlx5e_priv *priv,
			     struct mlx5_flow_spec *spec,
			     struct mlx5_flow_attr *attr);
void mlx5e_del_offloaded_nic_rule(struct mlx5e_priv *priv,
				  struct mlx5_flow_handle *rule,
				  struct mlx5_flow_attr *attr);

#else /* CONFIG_MLX5_ESWITCH */
static inline int  mlx5e_tc_nic_init(struct mlx5e_priv *priv) { return 0; }
static inline void mlx5e_tc_nic_cleanup(struct mlx5e_priv *priv) {}
static inline int  mlx5e_tc_num_filters(struct mlx5e_priv *priv,
					unsigned long flags)
{
	return 0;
}

static inline int
mlx5e_setup_tc_block_cb(enum tc_setup_type type, void *type_data, void *cb_priv)
{ return -EOPNOTSUPP; }
#endif

#if IS_ENABLED(CONFIG_MLX5_CLS_ACT)
struct mlx5e_tc_table *mlx5e_tc_table_alloc(void);
void mlx5e_tc_table_free(struct mlx5e_tc_table *tc);
static inline bool mlx5e_cqe_regb_chain(struct mlx5_cqe64 *cqe)
{}

bool mlx5e_tc_update_skb_nic(struct mlx5_cqe64 *cqe, struct sk_buff *skb);
bool mlx5e_tc_update_skb(struct mlx5_cqe64 *cqe, struct sk_buff *skb,
			 struct mapping_ctx *mapping_ctx, u32 mapped_obj_id,
			 struct mlx5_tc_ct_priv *ct_priv,
			 u32 zone_restore_id, u32 tunnel_id,
			 struct mlx5e_tc_update_priv *tc_priv);
#else /* CONFIG_MLX5_CLS_ACT */
static inline struct mlx5e_tc_table *mlx5e_tc_table_alloc(void) { return NULL; }
static inline void mlx5e_tc_table_free(struct mlx5e_tc_table *tc) {}
static inline bool mlx5e_cqe_regb_chain(struct mlx5_cqe64 *cqe)
{ return false; }
static inline bool
mlx5e_tc_update_skb_nic(struct mlx5_cqe64 *cqe, struct sk_buff *skb)
{ return true; }
#endif

int mlx5e_tc_action_miss_mapping_get(struct mlx5e_priv *priv, struct mlx5_flow_attr *attr,
				     u64 act_miss_cookie, u32 *act_miss_mapping);
void mlx5e_tc_action_miss_mapping_put(struct mlx5e_priv *priv, struct mlx5_flow_attr *attr,
				      u32 act_miss_mapping);

#endif /* __MLX5_EN_TC_H__ */