2 * Copyright (c) 2017 Mellanox Technologies. All rights reserved.
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:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
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.
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
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29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 #ifndef __MLX5E_IPSEC_H__
35 #define __MLX5E_IPSEC_H__
37 #ifdef CONFIG_MLX5_EN_IPSEC
39 #include <linux/mlx5/device.h>
41 #include <linux/idr.h>
43 #include "accel/ipsec.h"
45 #define MLX5E_IPSEC_SADB_RX_BITS 10
46 #define MLX5E_IPSEC_ESN_SCOPE_MID 0x80000000L
50 struct mlx5e_ipsec_sw_stats {
51 atomic64_t ipsec_rx_drop_sp_alloc;
52 atomic64_t ipsec_rx_drop_sadb_miss;
53 atomic64_t ipsec_rx_drop_syndrome;
54 atomic64_t ipsec_tx_drop_bundle;
55 atomic64_t ipsec_tx_drop_no_state;
56 atomic64_t ipsec_tx_drop_not_ip;
57 atomic64_t ipsec_tx_drop_trailer;
58 atomic64_t ipsec_tx_drop_metadata;
61 struct mlx5e_ipsec_stats {
62 u64 ipsec_dec_in_packets;
63 u64 ipsec_dec_out_packets;
64 u64 ipsec_dec_bypass_packets;
65 u64 ipsec_enc_in_packets;
66 u64 ipsec_enc_out_packets;
67 u64 ipsec_enc_bypass_packets;
68 u64 ipsec_dec_drop_packets;
69 u64 ipsec_dec_auth_fail_packets;
70 u64 ipsec_enc_drop_packets;
71 u64 ipsec_add_sa_success;
72 u64 ipsec_add_sa_fail;
73 u64 ipsec_del_sa_success;
74 u64 ipsec_del_sa_fail;
78 struct mlx5e_accel_fs_esp;
79 struct mlx5e_ipsec_tx;
82 struct mlx5e_priv *en_priv;
83 DECLARE_HASHTABLE(sadb_rx, MLX5E_IPSEC_SADB_RX_BITS);
85 spinlock_t sadb_rx_lock; /* Protects sadb_rx */
86 struct mlx5e_ipsec_sw_stats sw_stats;
87 struct mlx5e_ipsec_stats stats;
88 struct workqueue_struct *wq;
89 struct mlx5e_accel_fs_esp *rx_fs;
90 struct mlx5e_ipsec_tx *tx_fs;
93 struct mlx5e_ipsec_esn_state {
99 struct mlx5e_ipsec_rule {
100 struct mlx5_flow_handle *rule;
101 struct mlx5_modify_hdr *set_modify_hdr;
104 struct mlx5e_ipsec_sa_entry {
105 struct hlist_node hlist; /* Item in SADB_RX hashtable */
106 struct mlx5e_ipsec_esn_state esn_state;
107 unsigned int handle; /* Handle in SADB_RX */
108 struct xfrm_state *x;
109 struct mlx5e_ipsec *ipsec;
110 struct mlx5_accel_esp_xfrm *xfrm;
112 void (*set_iv_op)(struct sk_buff *skb, struct xfrm_state *x,
113 struct xfrm_offload *xo);
115 struct mlx5e_ipsec_rule ipsec_rule;
118 int mlx5e_ipsec_init(struct mlx5e_priv *priv);
119 void mlx5e_ipsec_cleanup(struct mlx5e_priv *priv);
120 void mlx5e_ipsec_build_netdev(struct mlx5e_priv *priv);
122 struct xfrm_state *mlx5e_ipsec_sadb_rx_lookup(struct mlx5e_ipsec *dev,
123 unsigned int handle);
126 static inline int mlx5e_ipsec_init(struct mlx5e_priv *priv)
131 static inline void mlx5e_ipsec_cleanup(struct mlx5e_priv *priv)
135 static inline void mlx5e_ipsec_build_netdev(struct mlx5e_priv *priv)
141 #endif /* __MLX5E_IPSEC_H__ */