linux/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.h

/*
 * Copyright (c) 2017 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 __MLX5E_IPSEC_H__
#define __MLX5E_IPSEC_H__

#include <linux/mlx5/device.h>
#include <net/xfrm.h>
#include <linux/idr.h>
#include "lib/aso.h"
#include "lib/devcom.h"

#define MLX5E_IPSEC_SADB_RX_BITS …
#define MLX5E_IPSEC_ESN_SCOPE_MID …

struct aes_gcm_keymat { … };

struct upspec { … };

struct mlx5_ipsec_lft { … };

struct mlx5_replay_esn { … };

struct mlx5_accel_esp_xfrm_attrs { … };

enum mlx5_ipsec_cap { … };

struct mlx5e_priv;

struct mlx5e_ipsec_hw_stats { … };

struct mlx5e_ipsec_sw_stats { … };

struct mlx5e_ipsec_fc;
struct mlx5e_ipsec_tx;

struct mlx5e_ipsec_work { … };

struct mlx5e_ipsec_netevent_data { … };

struct mlx5e_ipsec_dwork { … };

struct mlx5e_ipsec_aso { … };

struct mlx5e_ipsec_rx_create_attr { … };

struct mlx5e_ipsec_ft { … };

struct mlx5e_ipsec_drop { … };

struct mlx5e_ipsec_rule { … };

struct mlx5e_ipsec_miss { … };

struct mlx5e_ipsec_tx_create_attr { … };

struct mlx5e_ipsec_mpv_work { … };

struct mlx5e_ipsec { … };

struct mlx5e_ipsec_esn_state { … };

struct mlx5e_ipsec_limits { … };

struct mlx5e_ipsec_sa_entry { … };

struct mlx5_accel_pol_xfrm_attrs { … };

struct mlx5e_ipsec_pol_entry { … };

#ifdef CONFIG_MLX5_EN_IPSEC

void mlx5e_ipsec_init(struct mlx5e_priv *priv);
void mlx5e_ipsec_cleanup(struct mlx5e_priv *priv);
void mlx5e_ipsec_build_netdev(struct mlx5e_priv *priv);

void mlx5e_accel_ipsec_fs_cleanup(struct mlx5e_ipsec *ipsec);
int mlx5e_accel_ipsec_fs_init(struct mlx5e_ipsec *ipsec, struct mlx5_devcom_comp_dev **devcom);
int mlx5e_accel_ipsec_fs_add_rule(struct mlx5e_ipsec_sa_entry *sa_entry);
void mlx5e_accel_ipsec_fs_del_rule(struct mlx5e_ipsec_sa_entry *sa_entry);
int mlx5e_accel_ipsec_fs_add_pol(struct mlx5e_ipsec_pol_entry *pol_entry);
void mlx5e_accel_ipsec_fs_del_pol(struct mlx5e_ipsec_pol_entry *pol_entry);
void mlx5e_accel_ipsec_fs_modify(struct mlx5e_ipsec_sa_entry *sa_entry);
bool mlx5e_ipsec_fs_tunnel_enabled(struct mlx5e_ipsec_sa_entry *sa_entry);

int mlx5_ipsec_create_sa_ctx(struct mlx5e_ipsec_sa_entry *sa_entry);
void mlx5_ipsec_free_sa_ctx(struct mlx5e_ipsec_sa_entry *sa_entry);

u32 mlx5_ipsec_device_caps(struct mlx5_core_dev *mdev);

void mlx5_accel_esp_modify_xfrm(struct mlx5e_ipsec_sa_entry *sa_entry,
				const struct mlx5_accel_esp_xfrm_attrs *attrs);

int mlx5e_ipsec_aso_init(struct mlx5e_ipsec *ipsec);
void mlx5e_ipsec_aso_cleanup(struct mlx5e_ipsec *ipsec);

int mlx5e_ipsec_aso_query(struct mlx5e_ipsec_sa_entry *sa_entry,
			  struct mlx5_wqe_aso_ctrl_seg *data);
void mlx5e_accel_ipsec_fs_read_stats(struct mlx5e_priv *priv,
				     void *ipsec_stats);

void mlx5e_ipsec_build_accel_xfrm_attrs(struct mlx5e_ipsec_sa_entry *sa_entry,
					struct mlx5_accel_esp_xfrm_attrs *attrs);
void mlx5e_ipsec_handle_mpv_event(int event, struct mlx5e_priv *slave_priv,
				  struct mlx5e_priv *master_priv);
void mlx5e_ipsec_send_event(struct mlx5e_priv *priv, int event);

static inline struct mlx5_core_dev *
mlx5e_ipsec_sa2dev(struct mlx5e_ipsec_sa_entry *sa_entry)
{ … }

static inline struct mlx5_core_dev *
mlx5e_ipsec_pol2dev(struct mlx5e_ipsec_pol_entry *pol_entry)
{ … }

static inline bool addr6_all_zero(__be32 *addr6)
{ … }
#else
static inline void mlx5e_ipsec_init(struct mlx5e_priv *priv)
{
}

static inline void mlx5e_ipsec_cleanup(struct mlx5e_priv *priv)
{
}

static inline void mlx5e_ipsec_build_netdev(struct mlx5e_priv *priv)
{
}

static inline u32 mlx5_ipsec_device_caps(struct mlx5_core_dev *mdev)
{
	return 0;
}

static inline void mlx5e_ipsec_handle_mpv_event(int event, struct mlx5e_priv *slave_priv,
						struct mlx5e_priv *master_priv)
{
}

static inline void mlx5e_ipsec_send_event(struct mlx5e_priv *priv, int event)
{
}
#endif

#endif	/* __MLX5E_IPSEC_H__ */