1/* SPDX-License-Identifier: GPL-2.0-only
2 * Copyright (C) 2020 Marvell.
3 */
4
5#ifndef __OTX2_CPT_ALGS_H
6#define __OTX2_CPT_ALGS_H
7
8#include <crypto/hash.h>
9#include <crypto/skcipher.h>
10#include <crypto/aead.h>
11#include "otx2_cpt_common.h"
12#include "cn10k_cpt.h"
13
14#define OTX2_CPT_MAX_ENC_KEY_SIZE 32
15#define OTX2_CPT_MAX_HASH_KEY_SIZE 64
16#define OTX2_CPT_MAX_KEY_SIZE (OTX2_CPT_MAX_ENC_KEY_SIZE + \
17 OTX2_CPT_MAX_HASH_KEY_SIZE)
18enum otx2_cpt_request_type {
19 OTX2_CPT_ENC_DEC_REQ = 0x1,
20 OTX2_CPT_AEAD_ENC_DEC_REQ = 0x2,
21 OTX2_CPT_AEAD_ENC_DEC_NULL_REQ = 0x3,
22 OTX2_CPT_PASSTHROUGH_REQ = 0x4
23};
24
25enum otx2_cpt_major_opcodes {
26 OTX2_CPT_MAJOR_OP_MISC = 0x01,
27 OTX2_CPT_MAJOR_OP_FC = 0x33,
28 OTX2_CPT_MAJOR_OP_HMAC = 0x35,
29};
30
31enum otx2_cpt_cipher_type {
32 OTX2_CPT_CIPHER_NULL = 0x0,
33 OTX2_CPT_DES3_CBC = 0x1,
34 OTX2_CPT_DES3_ECB = 0x2,
35 OTX2_CPT_AES_CBC = 0x3,
36 OTX2_CPT_AES_ECB = 0x4,
37 OTX2_CPT_AES_CFB = 0x5,
38 OTX2_CPT_AES_CTR = 0x6,
39 OTX2_CPT_AES_GCM = 0x7,
40 OTX2_CPT_AES_XTS = 0x8
41};
42
43enum otx2_cpt_mac_type {
44 OTX2_CPT_MAC_NULL = 0x0,
45 OTX2_CPT_MD5 = 0x1,
46 OTX2_CPT_SHA1 = 0x2,
47 OTX2_CPT_SHA224 = 0x3,
48 OTX2_CPT_SHA256 = 0x4,
49 OTX2_CPT_SHA384 = 0x5,
50 OTX2_CPT_SHA512 = 0x6,
51 OTX2_CPT_GMAC = 0x7
52};
53
54enum otx2_cpt_aes_key_len {
55 OTX2_CPT_AES_128_BIT = 0x1,
56 OTX2_CPT_AES_192_BIT = 0x2,
57 OTX2_CPT_AES_256_BIT = 0x3
58};
59
60union otx2_cpt_encr_ctrl {
61 u64 u;
62 struct {
63#if defined(__BIG_ENDIAN_BITFIELD)
64 u64 enc_cipher:4;
65 u64 reserved_59:1;
66 u64 aes_key:2;
67 u64 iv_source:1;
68 u64 mac_type:4;
69 u64 reserved_49_51:3;
70 u64 auth_input_type:1;
71 u64 mac_len:8;
72 u64 reserved_32_39:8;
73 u64 encr_offset:16;
74 u64 iv_offset:8;
75 u64 auth_offset:8;
76#else
77 u64 auth_offset:8;
78 u64 iv_offset:8;
79 u64 encr_offset:16;
80 u64 reserved_32_39:8;
81 u64 mac_len:8;
82 u64 auth_input_type:1;
83 u64 reserved_49_51:3;
84 u64 mac_type:4;
85 u64 iv_source:1;
86 u64 aes_key:2;
87 u64 reserved_59:1;
88 u64 enc_cipher:4;
89#endif
90 } e;
91};
92
93struct otx2_cpt_cipher {
94 const char *name;
95 u8 value;
96};
97
98struct otx2_cpt_fc_enc_ctx {
99 union otx2_cpt_encr_ctrl enc_ctrl;
100 u8 encr_key[32];
101 u8 encr_iv[16];
102};
103
104union otx2_cpt_fc_hmac_ctx {
105 struct {
106 u8 ipad[64];
107 u8 opad[64];
108 } e;
109 struct {
110 u8 hmac_calc[64]; /* HMAC calculated */
111 u8 hmac_recv[64]; /* HMAC received */
112 } s;
113};
114
115struct otx2_cpt_fc_ctx {
116 struct otx2_cpt_fc_enc_ctx enc;
117 union otx2_cpt_fc_hmac_ctx hmac;
118};
119
120struct otx2_cpt_enc_ctx {
121 u32 key_len;
122 u8 enc_key[OTX2_CPT_MAX_KEY_SIZE];
123 u8 cipher_type;
124 u8 key_type;
125 u8 enc_align_len;
126 struct crypto_skcipher *fbk_cipher;
127 struct pci_dev *pdev;
128 struct cn10k_cpt_errata_ctx er_ctx;
129};
130
131union otx2_cpt_offset_ctrl {
132 u64 flags;
133 struct {
134#if defined(__BIG_ENDIAN_BITFIELD)
135 u64 reserved:32;
136 u64 enc_data_offset:16;
137 u64 iv_offset:8;
138 u64 auth_offset:8;
139#else
140 u64 auth_offset:8;
141 u64 iv_offset:8;
142 u64 enc_data_offset:16;
143 u64 reserved:32;
144#endif
145 } e;
146};
147
148struct otx2_cpt_req_ctx {
149 struct otx2_cpt_req_info cpt_req;
150 union otx2_cpt_offset_ctrl ctrl_word;
151 struct otx2_cpt_fc_ctx fctx;
152 union {
153 struct skcipher_request sk_fbk_req;
154 struct aead_request fbk_req;
155 };
156};
157
158struct otx2_cpt_sdesc {
159 struct shash_desc shash;
160};
161
162struct otx2_cpt_aead_ctx {
163 u8 key[OTX2_CPT_MAX_KEY_SIZE];
164 struct crypto_shash *hashalg;
165 struct otx2_cpt_sdesc *sdesc;
166 struct crypto_aead *fbk_cipher;
167 struct cn10k_cpt_errata_ctx er_ctx;
168 struct pci_dev *pdev;
169 u8 *ipad;
170 u8 *opad;
171 u32 enc_key_len;
172 u32 auth_key_len;
173 u8 cipher_type;
174 u8 mac_type;
175 u8 key_type;
176 u8 is_trunc_hmac;
177 u8 enc_align_len;
178};
179int otx2_cpt_crypto_init(struct pci_dev *pdev, struct module *mod,
180 int num_queues, int num_devices);
181void otx2_cpt_crypto_exit(struct pci_dev *pdev, struct module *mod);
182
183#endif /* __OTX2_CPT_ALGS_H */
184

source code of linux/drivers/crypto/marvell/octeontx2/otx2_cptvf_algs.h