2 * This file is part of the Chelsio T6 Crypto driver for Linux.
4 * Copyright (c) 2003-2016 Chelsio Communications, Inc. All rights reserved.
6 * This software is available to you under a choice of one of two
7 * licenses. You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
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10 * OpenIB.org BSD license below:
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13 * without modification, are permitted provided that the following
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17 * copyright notice, this list of conditions and the following
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials
23 * provided with the distribution.
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
36 #ifndef __CHCR_ALGO_H__
37 #define __CHCR_ALGO_H__
39 /* Crypto key context */
40 #define KEY_CONTEXT_CTX_LEN_S 24
41 #define KEY_CONTEXT_CTX_LEN_M 0xff
42 #define KEY_CONTEXT_CTX_LEN_V(x) ((x) << KEY_CONTEXT_CTX_LEN_S)
43 #define KEY_CONTEXT_CTX_LEN_G(x) \
44 (((x) >> KEY_CONTEXT_CTX_LEN_S) & KEY_CONTEXT_CTX_LEN_M)
46 #define KEY_CONTEXT_DUAL_CK_S 12
47 #define KEY_CONTEXT_DUAL_CK_M 0x1
48 #define KEY_CONTEXT_DUAL_CK_V(x) ((x) << KEY_CONTEXT_DUAL_CK_S)
49 #define KEY_CONTEXT_DUAL_CK_G(x) \
50 (((x) >> KEY_CONTEXT_DUAL_CK_S) & KEY_CONTEXT_DUAL_CK_M)
51 #define KEY_CONTEXT_DUAL_CK_F KEY_CONTEXT_DUAL_CK_V(1U)
53 #define KEY_CONTEXT_SALT_PRESENT_S 10
54 #define KEY_CONTEXT_SALT_PRESENT_M 0x1
55 #define KEY_CONTEXT_SALT_PRESENT_V(x) ((x) << KEY_CONTEXT_SALT_PRESENT_S)
56 #define KEY_CONTEXT_SALT_PRESENT_G(x) \
57 (((x) >> KEY_CONTEXT_SALT_PRESENT_S) & \
58 KEY_CONTEXT_SALT_PRESENT_M)
59 #define KEY_CONTEXT_SALT_PRESENT_F KEY_CONTEXT_SALT_PRESENT_V(1U)
61 #define KEY_CONTEXT_VALID_S 0
62 #define KEY_CONTEXT_VALID_M 0x1
63 #define KEY_CONTEXT_VALID_V(x) ((x) << KEY_CONTEXT_VALID_S)
64 #define KEY_CONTEXT_VALID_G(x) \
65 (((x) >> KEY_CONTEXT_VALID_S) & \
67 #define KEY_CONTEXT_VALID_F KEY_CONTEXT_VALID_V(1U)
69 #define KEY_CONTEXT_CK_SIZE_S 6
70 #define KEY_CONTEXT_CK_SIZE_M 0xf
71 #define KEY_CONTEXT_CK_SIZE_V(x) ((x) << KEY_CONTEXT_CK_SIZE_S)
72 #define KEY_CONTEXT_CK_SIZE_G(x) \
73 (((x) >> KEY_CONTEXT_CK_SIZE_S) & KEY_CONTEXT_CK_SIZE_M)
75 #define KEY_CONTEXT_MK_SIZE_S 2
76 #define KEY_CONTEXT_MK_SIZE_M 0xf
77 #define KEY_CONTEXT_MK_SIZE_V(x) ((x) << KEY_CONTEXT_MK_SIZE_S)
78 #define KEY_CONTEXT_MK_SIZE_G(x) \
79 (((x) >> KEY_CONTEXT_MK_SIZE_S) & KEY_CONTEXT_MK_SIZE_M)
81 #define KEY_CONTEXT_OPAD_PRESENT_S 11
82 #define KEY_CONTEXT_OPAD_PRESENT_M 0x1
83 #define KEY_CONTEXT_OPAD_PRESENT_V(x) ((x) << KEY_CONTEXT_OPAD_PRESENT_S)
84 #define KEY_CONTEXT_OPAD_PRESENT_G(x) \
85 (((x) >> KEY_CONTEXT_OPAD_PRESENT_S) & \
86 KEY_CONTEXT_OPAD_PRESENT_M)
87 #define KEY_CONTEXT_OPAD_PRESENT_F KEY_CONTEXT_OPAD_PRESENT_V(1U)
89 #define TLS_KEYCTX_RXFLIT_CNT_S 24
90 #define TLS_KEYCTX_RXFLIT_CNT_V(x) ((x) << TLS_KEYCTX_RXFLIT_CNT_S)
92 #define TLS_KEYCTX_RXPROT_VER_S 20
93 #define TLS_KEYCTX_RXPROT_VER_M 0xf
94 #define TLS_KEYCTX_RXPROT_VER_V(x) ((x) << TLS_KEYCTX_RXPROT_VER_S)
96 #define TLS_KEYCTX_RXCIPH_MODE_S 16
97 #define TLS_KEYCTX_RXCIPH_MODE_M 0xf
98 #define TLS_KEYCTX_RXCIPH_MODE_V(x) ((x) << TLS_KEYCTX_RXCIPH_MODE_S)
100 #define TLS_KEYCTX_RXAUTH_MODE_S 12
101 #define TLS_KEYCTX_RXAUTH_MODE_M 0xf
102 #define TLS_KEYCTX_RXAUTH_MODE_V(x) ((x) << TLS_KEYCTX_RXAUTH_MODE_S)
104 #define TLS_KEYCTX_RXCIAU_CTRL_S 11
105 #define TLS_KEYCTX_RXCIAU_CTRL_V(x) ((x) << TLS_KEYCTX_RXCIAU_CTRL_S)
107 #define TLS_KEYCTX_RX_SEQCTR_S 9
108 #define TLS_KEYCTX_RX_SEQCTR_M 0x3
109 #define TLS_KEYCTX_RX_SEQCTR_V(x) ((x) << TLS_KEYCTX_RX_SEQCTR_S)
111 #define TLS_KEYCTX_RX_VALID_S 8
112 #define TLS_KEYCTX_RX_VALID_V(x) ((x) << TLS_KEYCTX_RX_VALID_S)
114 #define TLS_KEYCTX_RXCK_SIZE_S 3
115 #define TLS_KEYCTX_RXCK_SIZE_M 0x7
116 #define TLS_KEYCTX_RXCK_SIZE_V(x) ((x) << TLS_KEYCTX_RXCK_SIZE_S)
118 #define TLS_KEYCTX_RXMK_SIZE_S 0
119 #define TLS_KEYCTX_RXMK_SIZE_M 0x7
120 #define TLS_KEYCTX_RXMK_SIZE_V(x) ((x) << TLS_KEYCTX_RXMK_SIZE_S)
122 #define CHCR_HASH_MAX_DIGEST_SIZE 64
123 #define CHCR_MAX_SHA_DIGEST_SIZE 64
125 #define IPSEC_TRUNCATED_ICV_SIZE 12
126 #define TLS_TRUNCATED_HMAC_SIZE 10
127 #define CBCMAC_DIGEST_SIZE 16
128 #define MAX_HASH_NAME 20
130 #define SHA1_INIT_STATE_5X4B 5
131 #define SHA256_INIT_STATE_8X4B 8
132 #define SHA512_INIT_STATE_8X8B 8
133 #define SHA1_INIT_STATE SHA1_INIT_STATE_5X4B
134 #define SHA224_INIT_STATE SHA256_INIT_STATE_8X4B
135 #define SHA256_INIT_STATE SHA256_INIT_STATE_8X4B
136 #define SHA384_INIT_STATE SHA512_INIT_STATE_8X8B
137 #define SHA512_INIT_STATE SHA512_INIT_STATE_8X8B
139 #define DUMMY_BYTES 16
141 #define IPAD_DATA 0x36363636
142 #define OPAD_DATA 0x5c5c5c5c
144 #define TRANSHDR_SIZE(kctx_len)\
145 (sizeof(struct chcr_wr) +\
147 #define CIPHER_TRANSHDR_SIZE(kctx_len, sge_pairs) \
148 (TRANSHDR_SIZE((kctx_len)) + (sge_pairs) +\
149 sizeof(struct cpl_rx_phys_dsgl) + AES_BLOCK_SIZE)
150 #define HASH_TRANSHDR_SIZE(kctx_len)\
151 (TRANSHDR_SIZE(kctx_len) + DUMMY_BYTES)
154 #define FILL_SEC_CPL_OP_IVINSR(id, len, ofst) \
156 CPL_TX_SEC_PDU_OPCODE_V(CPL_TX_SEC_PDU) | \
157 CPL_TX_SEC_PDU_RXCHID_V((id)) | \
158 CPL_TX_SEC_PDU_ACKFOLLOWS_V(0) | \
159 CPL_TX_SEC_PDU_ULPTXLPBK_V(1) | \
160 CPL_TX_SEC_PDU_CPLLEN_V((len)) | \
161 CPL_TX_SEC_PDU_PLACEHOLDER_V(0) | \
162 CPL_TX_SEC_PDU_IVINSRTOFST_V((ofst)))
164 #define FILL_SEC_CPL_CIPHERSTOP_HI(a_start, a_stop, c_start, c_stop_hi) \
166 CPL_TX_SEC_PDU_AADSTART_V((a_start)) | \
167 CPL_TX_SEC_PDU_AADSTOP_V((a_stop)) | \
168 CPL_TX_SEC_PDU_CIPHERSTART_V((c_start)) | \
169 CPL_TX_SEC_PDU_CIPHERSTOP_HI_V((c_stop_hi)))
171 #define FILL_SEC_CPL_AUTHINSERT(c_stop_lo, a_start, a_stop, a_inst) \
173 CPL_TX_SEC_PDU_CIPHERSTOP_LO_V((c_stop_lo)) | \
174 CPL_TX_SEC_PDU_AUTHSTART_V((a_start)) | \
175 CPL_TX_SEC_PDU_AUTHSTOP_V((a_stop)) | \
176 CPL_TX_SEC_PDU_AUTHINSERT_V((a_inst)))
178 #define FILL_SEC_CPL_SCMD0_SEQNO(ctrl, seq, cmode, amode, opad, size) \
180 SCMD_SEQ_NO_CTRL_V(0) | \
181 SCMD_STATUS_PRESENT_V(0) | \
182 SCMD_PROTO_VERSION_V(CHCR_SCMD_PROTO_VERSION_GENERIC) | \
183 SCMD_ENC_DEC_CTRL_V((ctrl)) | \
184 SCMD_CIPH_AUTH_SEQ_CTRL_V((seq)) | \
185 SCMD_CIPH_MODE_V((cmode)) | \
186 SCMD_AUTH_MODE_V((amode)) | \
187 SCMD_HMAC_CTRL_V((opad)) | \
188 SCMD_IV_SIZE_V((size)) | \
191 #define FILL_SEC_CPL_IVGEN_HDRLEN(last, more, ctx_in, mac, ivdrop, len) htonl( \
192 SCMD_ENB_DBGID_V(0) | \
193 SCMD_IV_GEN_CTRL_V(0) | \
194 SCMD_LAST_FRAG_V((last)) | \
195 SCMD_MORE_FRAGS_V((more)) | \
196 SCMD_TLS_COMPPDU_V(0) | \
197 SCMD_KEY_CTX_INLINE_V((ctx_in)) | \
198 SCMD_TLS_FRAG_ENABLE_V(0) | \
199 SCMD_MAC_ONLY_V((mac)) | \
200 SCMD_AADIVDROP_V((ivdrop)) | \
201 SCMD_HDR_LEN_V((len)))
203 #define FILL_KEY_CTX_HDR(ck_size, mk_size, d_ck, opad, ctx_len) \
204 htonl(KEY_CONTEXT_VALID_V(1) | \
205 KEY_CONTEXT_CK_SIZE_V((ck_size)) | \
206 KEY_CONTEXT_MK_SIZE_V(mk_size) | \
207 KEY_CONTEXT_DUAL_CK_V((d_ck)) | \
208 KEY_CONTEXT_OPAD_PRESENT_V((opad)) | \
209 KEY_CONTEXT_SALT_PRESENT_V(1) | \
210 KEY_CONTEXT_CTX_LEN_V((ctx_len)))
212 #define FILL_KEY_CRX_HDR(ck_size, mk_size, d_ck, opad, ctx_len) \
213 htonl(TLS_KEYCTX_RXMK_SIZE_V(mk_size) | \
214 TLS_KEYCTX_RXCK_SIZE_V(ck_size) | \
215 TLS_KEYCTX_RX_VALID_V(1) | \
216 TLS_KEYCTX_RX_SEQCTR_V(3) | \
217 TLS_KEYCTX_RXAUTH_MODE_V(4) | \
218 TLS_KEYCTX_RXCIPH_MODE_V(2) | \
219 TLS_KEYCTX_RXFLIT_CNT_V((ctx_len)))
221 #define FILL_WR_OP_CCTX_SIZE \
223 FW_CRYPTO_LOOKASIDE_WR_OPCODE_V( \
224 FW_CRYPTO_LOOKASIDE_WR) | \
225 FW_CRYPTO_LOOKASIDE_WR_COMPL_V(0) | \
226 FW_CRYPTO_LOOKASIDE_WR_IMM_LEN_V((0)) | \
227 FW_CRYPTO_LOOKASIDE_WR_CCTX_LOC_V(0) | \
228 FW_CRYPTO_LOOKASIDE_WR_CCTX_SIZE_V(0))
230 #define FILL_WR_RX_Q_ID(cid, qid, lcb, fid) \
232 FW_CRYPTO_LOOKASIDE_WR_RX_CHID_V((cid)) | \
233 FW_CRYPTO_LOOKASIDE_WR_RX_Q_ID_V((qid)) | \
234 FW_CRYPTO_LOOKASIDE_WR_LCB_V((lcb)) | \
235 FW_CRYPTO_LOOKASIDE_WR_IV_V((IV_NOP)) | \
236 FW_CRYPTO_LOOKASIDE_WR_FQIDX_V(fid))
238 #define FILL_ULPTX_CMD_DEST(cid, qid) \
239 htonl(ULPTX_CMD_V(ULP_TX_PKT) | \
240 ULP_TXPKT_DEST_V(0) | \
241 ULP_TXPKT_DATAMODIFY_V(0) | \
242 ULP_TXPKT_CHANNELID_V((cid)) | \
243 ULP_TXPKT_RO_V(1) | \
244 ULP_TXPKT_FID_V(qid))
246 #define KEYCTX_ALIGN_PAD(bs) ({unsigned int _bs = (bs);\
247 _bs == SHA1_DIGEST_SIZE ? 12 : 0; })
249 #define FILL_PLD_SIZE_HASH_SIZE(payload_sgl_len, sgl_lengths, total_frags) \
250 htonl(FW_CRYPTO_LOOKASIDE_WR_PLD_SIZE_V(payload_sgl_len ? \
251 sgl_lengths[total_frags] : 0) |\
252 FW_CRYPTO_LOOKASIDE_WR_HASH_SIZE_V(0))
254 #define FILL_LEN_PKD(calc_tx_flits_ofld, skb) \
255 htonl(FW_CRYPTO_LOOKASIDE_WR_LEN16_V(DIV_ROUND_UP((\
256 calc_tx_flits_ofld(skb) * 8), 16)))
258 #define FILL_CMD_MORE(immdatalen) htonl(ULPTX_CMD_V(ULP_TX_SC_IMM) |\
259 ULP_TX_SC_MORE_V((immdatalen)))
261 #define MAX_DSGL_ENT 32
262 #define MIN_AUTH_SG 1 /* IV */
263 #define MIN_GCM_SG 1 /* IV */
264 #define MIN_DIGEST_SG 1 /*Partial Buffer*/
265 #define MIN_CCM_SG 2 /*IV+B0*/
266 #define CIP_SPACE_LEFT(len) \
267 ((SGE_MAX_WR_LEN - CIP_WR_MIN_LEN - (len)))
268 #define HASH_SPACE_LEFT(len) \
269 ((SGE_MAX_WR_LEN - HASH_WR_MIN_LEN - (len)))
272 unsigned int auth_mode;
273 unsigned int mk_size;
274 unsigned int result_size;
277 struct hash_wr_param {
278 struct algo_param alg_prm;
279 unsigned int opad_needed;
282 unsigned int kctx_len;
284 unsigned int bfr_len;
285 unsigned int hash_size;
289 struct cipher_wr_param {
290 struct ablkcipher_request *req;
296 AES_KEYLENGTH_128BIT = 128,
297 AES_KEYLENGTH_192BIT = 192,
298 AES_KEYLENGTH_256BIT = 256
302 KEYLENGTH_3BYTES = 3,
303 KEYLENGTH_4BYTES = 4,
304 KEYLENGTH_6BYTES = 6,
309 NUMBER_OF_ROUNDS_10 = 10,
310 NUMBER_OF_ROUNDS_12 = 12,
311 NUMBER_OF_ROUNDS_14 = 14,
315 * CCM defines values of 4, 6, 8, 10, 12, 14, and 16 octets,
316 * where they indicate the size of the integrity check value (ICV)
330 struct phys_sge_pairs {
336 static const u32 sha1_init[SHA1_DIGEST_SIZE / 4] = {
337 SHA1_H0, SHA1_H1, SHA1_H2, SHA1_H3, SHA1_H4,
340 static const u32 sha224_init[SHA256_DIGEST_SIZE / 4] = {
341 SHA224_H0, SHA224_H1, SHA224_H2, SHA224_H3,
342 SHA224_H4, SHA224_H5, SHA224_H6, SHA224_H7,
345 static const u32 sha256_init[SHA256_DIGEST_SIZE / 4] = {
346 SHA256_H0, SHA256_H1, SHA256_H2, SHA256_H3,
347 SHA256_H4, SHA256_H5, SHA256_H6, SHA256_H7,
350 static const u64 sha384_init[SHA512_DIGEST_SIZE / 8] = {
351 SHA384_H0, SHA384_H1, SHA384_H2, SHA384_H3,
352 SHA384_H4, SHA384_H5, SHA384_H6, SHA384_H7,
355 static const u64 sha512_init[SHA512_DIGEST_SIZE / 8] = {
356 SHA512_H0, SHA512_H1, SHA512_H2, SHA512_H3,
357 SHA512_H4, SHA512_H5, SHA512_H6, SHA512_H7,
360 static inline void copy_hash_init_values(char *key, int digestsize)
363 __be32 *dkey = (__be32 *)key;
364 u64 *ldkey = (u64 *)key;
365 __be64 *sha384 = (__be64 *)sha384_init;
366 __be64 *sha512 = (__be64 *)sha512_init;
368 switch (digestsize) {
369 case SHA1_DIGEST_SIZE:
370 for (i = 0; i < SHA1_INIT_STATE; i++)
371 dkey[i] = cpu_to_be32(sha1_init[i]);
373 case SHA224_DIGEST_SIZE:
374 for (i = 0; i < SHA224_INIT_STATE; i++)
375 dkey[i] = cpu_to_be32(sha224_init[i]);
377 case SHA256_DIGEST_SIZE:
378 for (i = 0; i < SHA256_INIT_STATE; i++)
379 dkey[i] = cpu_to_be32(sha256_init[i]);
381 case SHA384_DIGEST_SIZE:
382 for (i = 0; i < SHA384_INIT_STATE; i++)
383 ldkey[i] = be64_to_cpu(sha384[i]);
385 case SHA512_DIGEST_SIZE:
386 for (i = 0; i < SHA512_INIT_STATE; i++)
387 ldkey[i] = be64_to_cpu(sha512[i]);
392 static const u8 sgl_lengths[20] = {
393 0, 1, 2, 3, 4, 4, 5, 6, 7, 7, 8, 9, 10, 10, 11, 12, 13, 13, 14, 15
396 /* Number of len fields(8) * size of one addr field */
397 #define PHYSDSGL_MAX_LEN_SIZE 16
399 static inline u16 get_space_for_phys_dsgl(unsigned int sgl_entr)
401 /* len field size + addr field size */
402 return ((sgl_entr >> 3) + ((sgl_entr % 8) ?
403 1 : 0)) * PHYSDSGL_MAX_LEN_SIZE +
404 (sgl_entr << 3) + ((sgl_entr % 2 ? 1 : 0) << 3);
407 /* The AES s-transform matrix (s-box). */
408 static const u8 aes_sbox[256] = {
409 99, 124, 119, 123, 242, 107, 111, 197, 48, 1, 103, 43, 254, 215,
410 171, 118, 202, 130, 201, 125, 250, 89, 71, 240, 173, 212, 162, 175,
411 156, 164, 114, 192, 183, 253, 147, 38, 54, 63, 247, 204, 52, 165,
412 229, 241, 113, 216, 49, 21, 4, 199, 35, 195, 24, 150, 5, 154, 7,
413 18, 128, 226, 235, 39, 178, 117, 9, 131, 44, 26, 27, 110, 90,
414 160, 82, 59, 214, 179, 41, 227, 47, 132, 83, 209, 0, 237, 32,
415 252, 177, 91, 106, 203, 190, 57, 74, 76, 88, 207, 208, 239, 170,
416 251, 67, 77, 51, 133, 69, 249, 2, 127, 80, 60, 159, 168, 81,
417 163, 64, 143, 146, 157, 56, 245, 188, 182, 218, 33, 16, 255, 243,
418 210, 205, 12, 19, 236, 95, 151, 68, 23, 196, 167, 126, 61, 100,
419 93, 25, 115, 96, 129, 79, 220, 34, 42, 144, 136, 70, 238, 184,
420 20, 222, 94, 11, 219, 224, 50, 58, 10, 73, 6, 36, 92, 194,
421 211, 172, 98, 145, 149, 228, 121, 231, 200, 55, 109, 141, 213, 78,
422 169, 108, 86, 244, 234, 101, 122, 174, 8, 186, 120, 37, 46, 28, 166,
423 180, 198, 232, 221, 116, 31, 75, 189, 139, 138, 112, 62, 181, 102,
424 72, 3, 246, 14, 97, 53, 87, 185, 134, 193, 29, 158, 225, 248,
425 152, 17, 105, 217, 142, 148, 155, 30, 135, 233, 206, 85, 40, 223,
426 140, 161, 137, 13, 191, 230, 66, 104, 65, 153, 45, 15, 176, 84,
430 static inline u32 aes_ks_subword(const u32 w)
434 *(u32 *)(&bytes[0]) = w;
435 bytes[0] = aes_sbox[bytes[0]];
436 bytes[1] = aes_sbox[bytes[1]];
437 bytes[2] = aes_sbox[bytes[2]];
438 bytes[3] = aes_sbox[bytes[3]];
439 return *(u32 *)(&bytes[0]);
442 #endif /* __CHCR_ALGO_H__ */