2 * Copyright (c) 2019-2021, Mellanox Technologies, Ltd. All rights reserved.
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29 #include "opt_ratelimit.h"
31 #include <linux/kernel.h>
32 #include <linux/module.h>
33 #include <dev/mlx5/driver.h>
34 #include <dev/mlx5/tls.h>
35 #include <dev/mlx5/mlx5_core/mlx5_core.h>
36 #include <dev/mlx5/mlx5_core/transobj.h>
38 int mlx5_encryption_key_create(struct mlx5_core_dev *mdev, u32 pdn,
39 const void *p_key, u32 key_len, u32 *p_obj_id)
41 u32 in[MLX5_ST_SZ_DW(create_encryption_key_in)] = {};
42 u32 out[MLX5_ST_SZ_DW(create_encryption_key_out)] = {};
43 u64 general_obj_types;
46 general_obj_types = MLX5_CAP_GEN_64(mdev, general_obj_types);
47 if (!(general_obj_types & MLX5_HCA_CAP_GENERAL_OBJ_TYPES_ENCRYPTION_KEY))
52 memcpy(MLX5_ADDR_OF(create_encryption_key_in, in,
53 encryption_key_object.key[4]), p_key, 128 / 8);
54 MLX5_SET(create_encryption_key_in, in, encryption_key_object.pd, pdn);
55 MLX5_SET(create_encryption_key_in, in, encryption_key_object.key_size,
56 MLX5_GENERAL_OBJECT_TYPE_ENCRYPTION_KEY_KEY_SIZE_128);
57 MLX5_SET(create_encryption_key_in, in, encryption_key_object.key_type,
58 MLX5_GENERAL_OBJECT_TYPE_ENCRYPTION_KEY_TYPE_DEK);
61 memcpy(MLX5_ADDR_OF(create_encryption_key_in, in,
62 encryption_key_object.key[0]), p_key, 256 / 8);
63 MLX5_SET(create_encryption_key_in, in, encryption_key_object.pd, pdn);
64 MLX5_SET(create_encryption_key_in, in, encryption_key_object.key_size,
65 MLX5_GENERAL_OBJECT_TYPE_ENCRYPTION_KEY_KEY_SIZE_256);
66 MLX5_SET(create_encryption_key_in, in, encryption_key_object.key_type,
67 MLX5_GENERAL_OBJECT_TYPE_ENCRYPTION_KEY_TYPE_DEK);
73 MLX5_SET(create_encryption_key_in, in, opcode, MLX5_CMD_OP_CREATE_GENERAL_OBJ);
74 MLX5_SET(create_encryption_key_in, in, obj_type, MLX5_GENERAL_OBJECT_TYPES_ENCRYPTION_KEY);
76 err = mlx5_cmd_exec(mdev, in, sizeof(in), out, sizeof(out));
78 *p_obj_id = MLX5_GET(create_encryption_key_out, out, obj_id);
80 /* avoid leaking key on the stack */
81 memset(in, 0, sizeof(in));
86 int mlx5_encryption_key_destroy(struct mlx5_core_dev *mdev, u32 oid)
88 u32 in[MLX5_ST_SZ_DW(destroy_encryption_key_in)] = {};
89 u32 out[MLX5_ST_SZ_DW(destroy_encryption_key_out)] = {};
91 MLX5_SET(destroy_encryption_key_in, in, opcode, MLX5_CMD_OP_DESTROY_GENERAL_OBJ);
92 MLX5_SET(destroy_encryption_key_in, in, obj_type, MLX5_GENERAL_OBJECT_TYPES_ENCRYPTION_KEY);
93 MLX5_SET(destroy_encryption_key_in, in, obj_id, oid);
95 return mlx5_cmd_exec(mdev, in, sizeof(in), out, sizeof(out));
98 int mlx5_tls_open_tis(struct mlx5_core_dev *mdev, int tc, int tdn, int pdn, u32 *p_tisn)
100 u32 in[MLX5_ST_SZ_DW(create_tis_in)] = {};
101 void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx);
104 MLX5_SET(tisc, tisc, prio, tc);
105 MLX5_SET(tisc, tisc, transport_domain, tdn);
106 MLX5_SET(tisc, tisc, tls_en, 1);
107 MLX5_SET(tisc, tisc, pd, pdn);
109 err = mlx5_core_create_tis(mdev, in, sizeof(in), p_tisn);
112 else if (*p_tisn == 0)
115 return (0); /* success */
118 void mlx5_tls_close_tis(struct mlx5_core_dev *mdev, u32 tisn)
121 mlx5_core_destroy_tis(mdev, tisn, 0);
124 int mlx5_tls_open_tir(struct mlx5_core_dev *mdev, int tdn, int rqtn, u32 *p_tirn)
126 u32 in[MLX5_ST_SZ_DW(create_tir_in)] = {};
127 void *tirc = MLX5_ADDR_OF(create_tir_in, in, tir_context);
130 MLX5_SET(tirc, tirc, transport_domain, tdn);
131 MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT);
132 MLX5_SET(tirc, tirc, rx_hash_fn, MLX5_TIRC_RX_HASH_FN_HASH_INVERTED_XOR8);
133 MLX5_SET(tirc, tirc, indirect_table, rqtn);
134 MLX5_SET(tirc, tirc, tls_en, 1);
135 MLX5_SET(tirc, tirc, self_lb_en,
136 MLX5_TIRC_SELF_LB_EN_ENABLE_UNICAST |
137 MLX5_TIRC_SELF_LB_EN_ENABLE_MULTICAST);
139 err = mlx5_core_create_tir(mdev, in, sizeof(in), p_tirn);
142 else if (*p_tirn == 0)
145 return (0); /* success */
148 void mlx5_tls_close_tir(struct mlx5_core_dev *mdev, u32 tirn)
150 mlx5_core_destroy_tir(mdev, tirn, 0);