[linux-2.6-block.git] / 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__

#ifdef CONFIG_MLX5_EN_IPSEC

#include <linux/mlx5/device.h>
#include <net/xfrm.h>
#include <linux/idr.h>

#define MLX5E_IPSEC_SADB_RX_BITS 10
#define MLX5E_METADATA_ETHER_TYPE (0x8CE4)
#define MLX5E_METADATA_ETHER_LEN 8

struct mlx5e_priv;

struct mlx5e_ipsec_sw_stats {
	atomic64_t ipsec_rx_drop_sp_alloc;
	atomic64_t ipsec_rx_drop_sadb_miss;
	atomic64_t ipsec_rx_drop_syndrome;
	atomic64_t ipsec_tx_drop_bundle;
	atomic64_t ipsec_tx_drop_no_state;
	atomic64_t ipsec_tx_drop_not_ip;
	atomic64_t ipsec_tx_drop_trailer;
	atomic64_t ipsec_tx_drop_metadata;
};

struct mlx5e_ipsec_stats {
	u64 ipsec_dec_in_packets;
	u64 ipsec_dec_out_packets;
	u64 ipsec_dec_bypass_packets;
	u64 ipsec_enc_in_packets;
	u64 ipsec_enc_out_packets;
	u64 ipsec_enc_bypass_packets;
	u64 ipsec_dec_drop_packets;
	u64 ipsec_dec_auth_fail_packets;
	u64 ipsec_enc_drop_packets;
	u64 ipsec_add_sa_success;
	u64 ipsec_add_sa_fail;
	u64 ipsec_del_sa_success;
	u64 ipsec_del_sa_fail;
	u64 ipsec_cmd_drop;
};

struct mlx5e_ipsec {
	struct mlx5e_priv *en_priv;
	DECLARE_HASHTABLE(sadb_rx, MLX5E_IPSEC_SADB_RX_BITS);
	spinlock_t sadb_rx_lock; /* Protects sadb_rx and halloc */
	struct ida halloc;
	struct mlx5e_ipsec_sw_stats sw_stats;
	struct mlx5e_ipsec_stats stats;
};

void mlx5e_ipsec_build_inverse_table(void);
int mlx5e_ipsec_init(struct mlx5e_priv *priv);
void mlx5e_ipsec_cleanup(struct mlx5e_priv *priv);
void mlx5e_ipsec_build_netdev(struct mlx5e_priv *priv);

int mlx5e_ipsec_get_count(struct mlx5e_priv *priv);
int mlx5e_ipsec_get_strings(struct mlx5e_priv *priv, uint8_t *data);
void mlx5e_ipsec_update_stats(struct mlx5e_priv *priv);
int mlx5e_ipsec_get_stats(struct mlx5e_priv *priv, u64 *data);

struct xfrm_state *mlx5e_ipsec_sadb_rx_lookup(struct mlx5e_ipsec *dev,
					      unsigned int handle);

#else

static inline void mlx5e_ipsec_build_inverse_table(void)
{
}

static inline int mlx5e_ipsec_init(struct mlx5e_priv *priv)
{
	return 0;
}

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

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

static inline int mlx5e_ipsec_get_count(struct mlx5e_priv *priv)
{
	return 0;
}

static inline int mlx5e_ipsec_get_strings(struct mlx5e_priv *priv,
					  uint8_t *data)
{
	return 0;
}

static inline void mlx5e_ipsec_update_stats(struct mlx5e_priv *priv)
{
}

static inline int mlx5e_ipsec_get_stats(struct mlx5e_priv *priv, u64 *data)
{
	return 0;
}

#endif

#endif	/* __MLX5E_IPSEC_H__ */
Commit	Line	Data
547eede0 IT	1	/*
	2	* Copyright (c) 2017 Mellanox Technologies. All rights reserved.
	3	*
	4	* This software is available to you under a choice of one of two
	5	* licenses. You may choose to be licensed under the terms of the GNU
	6	* General Public License (GPL) Version 2, available from the file
	7	* COPYING in the main directory of this source tree, or the
	8	* OpenIB.org BSD license below:
	9	*
	10	* Redistribution and use in source and binary forms, with or
	11	* without modification, are permitted provided that the following
	12	* conditions are met:
	13	*
	14	* - Redistributions of source code must retain the above
	15	* copyright notice, this list of conditions and the following
	16	* disclaimer.
	17	*
	18	* - Redistributions in binary form must reproduce the above
	19	* copyright notice, this list of conditions and the following
	20	* disclaimer in the documentation and/or other materials
	21	* provided with the distribution.
	22	*
	23	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	24	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	25	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	26	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	27	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	28	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	29	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	30	* SOFTWARE.
	31	*
	32	*/
	33
	34	#ifndef __MLX5E_IPSEC_H__
	35	#define __MLX5E_IPSEC_H__
	36
	37	#ifdef CONFIG_MLX5_EN_IPSEC
	38
	39	#include <linux/mlx5/device.h>
	40	#include <net/xfrm.h>
	41	#include <linux/idr.h>
	42
	43	#define MLX5E_IPSEC_SADB_RX_BITS 10
899a59d3 IT	44	#define MLX5E_METADATA_ETHER_TYPE (0x8CE4)
899a59d3 IT	45	#define MLX5E_METADATA_ETHER_LEN 8
547eede0 IT	46
	47	struct mlx5e_priv;
	48
899a59d3 IT	49	struct mlx5e_ipsec_sw_stats {
	50	atomic64_t ipsec_rx_drop_sp_alloc;
	51	atomic64_t ipsec_rx_drop_sadb_miss;
	52	atomic64_t ipsec_rx_drop_syndrome;
2ac9cfe7 IT	53	atomic64_t ipsec_tx_drop_bundle;
	54	atomic64_t ipsec_tx_drop_no_state;
	55	atomic64_t ipsec_tx_drop_not_ip;
	56	atomic64_t ipsec_tx_drop_trailer;
	57	atomic64_t ipsec_tx_drop_metadata;
899a59d3 IT	58	};
899a59d3 IT	59
164f16f7 IT	60	struct mlx5e_ipsec_stats {
	61	u64 ipsec_dec_in_packets;
	62	u64 ipsec_dec_out_packets;
	63	u64 ipsec_dec_bypass_packets;
	64	u64 ipsec_enc_in_packets;
	65	u64 ipsec_enc_out_packets;
	66	u64 ipsec_enc_bypass_packets;
	67	u64 ipsec_dec_drop_packets;
	68	u64 ipsec_dec_auth_fail_packets;
	69	u64 ipsec_enc_drop_packets;
	70	u64 ipsec_add_sa_success;
	71	u64 ipsec_add_sa_fail;
	72	u64 ipsec_del_sa_success;
	73	u64 ipsec_del_sa_fail;
	74	u64 ipsec_cmd_drop;
	75	};
	76
547eede0 IT	77	struct mlx5e_ipsec {
	78	struct mlx5e_priv *en_priv;
	79	DECLARE_HASHTABLE(sadb_rx, MLX5E_IPSEC_SADB_RX_BITS);
	80	spinlock_t sadb_rx_lock; /* Protects sadb_rx and halloc */
	81	struct ida halloc;
899a59d3	82	struct mlx5e_ipsec_sw_stats sw_stats;
164f16f7	83	struct mlx5e_ipsec_stats stats;
547eede0 IT	84	};
547eede0 IT	85
2ac9cfe7	86	void mlx5e_ipsec_build_inverse_table(void);
547eede0 IT	87	int mlx5e_ipsec_init(struct mlx5e_priv *priv);
	88	void mlx5e_ipsec_cleanup(struct mlx5e_priv *priv);
	89	void mlx5e_ipsec_build_netdev(struct mlx5e_priv *priv);
	90
164f16f7 IT	91	int mlx5e_ipsec_get_count(struct mlx5e_priv *priv);
	92	int mlx5e_ipsec_get_strings(struct mlx5e_priv priv, uint8_t data);
	93	void mlx5e_ipsec_update_stats(struct mlx5e_priv *priv);
	94	int mlx5e_ipsec_get_stats(struct mlx5e_priv priv, u64 data);
	95
547eede0 IT	96	struct xfrm_state mlx5e_ipsec_sadb_rx_lookup(struct mlx5e_ipsec dev,
	97	unsigned int handle);
	98
	99	#else
	100
2ac9cfe7 IT	101	static inline void mlx5e_ipsec_build_inverse_table(void)
	102	{
	103	}
	104
547eede0 IT	105	static inline int mlx5e_ipsec_init(struct mlx5e_priv *priv)
	106	{
	107	return 0;
	108	}
	109
	110	static inline void mlx5e_ipsec_cleanup(struct mlx5e_priv *priv)
	111	{
	112	}
	113
	114	static inline void mlx5e_ipsec_build_netdev(struct mlx5e_priv *priv)
	115	{
	116	}
	117
164f16f7 IT	118	static inline int mlx5e_ipsec_get_count(struct mlx5e_priv *priv)
	119	{
	120	return 0;
	121	}
	122
	123	static inline int mlx5e_ipsec_get_strings(struct mlx5e_priv *priv,
	124	uint8_t *data)
	125	{
	126	return 0;
	127	}
	128
	129	static inline void mlx5e_ipsec_update_stats(struct mlx5e_priv *priv)
	130	{
	131	}
	132
	133	static inline int mlx5e_ipsec_get_stats(struct mlx5e_priv priv, u64 data)
	134	{
	135	return 0;
	136	}
	137
547eede0 IT	138	#endif
	139
	140	#endif /* __MLX5E_IPSEC_H__ */