Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 1 | /* |
| 2 | This file is provided under a dual BSD/GPLv2 license. When using or |
| 3 | redistributing this file, you may do so under either license. |
| 4 | |
| 5 | GPL LICENSE SUMMARY |
| 6 | Copyright(c) 2014 Intel Corporation. |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of version 2 of the GNU General Public License as |
| 9 | published by the Free Software Foundation. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, but |
| 12 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | General Public License for more details. |
| 15 | |
| 16 | Contact Information: |
| 17 | qat-linux@intel.com |
| 18 | |
| 19 | BSD LICENSE |
| 20 | Copyright(c) 2014 Intel Corporation. |
| 21 | Redistribution and use in source and binary forms, with or without |
| 22 | modification, are permitted provided that the following conditions |
| 23 | are met: |
| 24 | |
| 25 | * Redistributions of source code must retain the above copyright |
| 26 | notice, this list of conditions and the following disclaimer. |
| 27 | * Redistributions in binary form must reproduce the above copyright |
| 28 | notice, this list of conditions and the following disclaimer in |
| 29 | the documentation and/or other materials provided with the |
| 30 | distribution. |
| 31 | * Neither the name of Intel Corporation nor the names of its |
| 32 | contributors may be used to endorse or promote products derived |
| 33 | from this software without specific prior written permission. |
| 34 | |
| 35 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 36 | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 37 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 38 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 39 | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 40 | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 41 | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 42 | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 43 | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 44 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 45 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 46 | */ |
| 47 | #include <linux/module.h> |
| 48 | #include <linux/slab.h> |
| 49 | #include <linux/crypto.h> |
| 50 | #include <crypto/aead.h> |
| 51 | #include <crypto/aes.h> |
| 52 | #include <crypto/sha.h> |
| 53 | #include <crypto/hash.h> |
| 54 | #include <crypto/algapi.h> |
| 55 | #include <crypto/authenc.h> |
| 56 | #include <crypto/rng.h> |
| 57 | #include <linux/dma-mapping.h> |
| 58 | #include "adf_accel_devices.h" |
| 59 | #include "adf_transport.h" |
| 60 | #include "adf_common_drv.h" |
| 61 | #include "qat_crypto.h" |
| 62 | #include "icp_qat_hw.h" |
| 63 | #include "icp_qat_fw.h" |
| 64 | #include "icp_qat_fw_la.h" |
| 65 | |
| 66 | #define QAT_AES_HW_CONFIG_ENC(alg) \ |
| 67 | ICP_QAT_HW_CIPHER_CONFIG_BUILD(ICP_QAT_HW_CIPHER_CBC_MODE, alg, \ |
| 68 | ICP_QAT_HW_CIPHER_NO_CONVERT, \ |
| 69 | ICP_QAT_HW_CIPHER_ENCRYPT) |
| 70 | |
| 71 | #define QAT_AES_HW_CONFIG_DEC(alg) \ |
| 72 | ICP_QAT_HW_CIPHER_CONFIG_BUILD(ICP_QAT_HW_CIPHER_CBC_MODE, alg, \ |
| 73 | ICP_QAT_HW_CIPHER_KEY_CONVERT, \ |
| 74 | ICP_QAT_HW_CIPHER_DECRYPT) |
| 75 | |
| 76 | static atomic_t active_dev; |
| 77 | |
| 78 | struct qat_alg_buf { |
| 79 | uint32_t len; |
| 80 | uint32_t resrvd; |
| 81 | uint64_t addr; |
| 82 | } __packed; |
| 83 | |
| 84 | struct qat_alg_buf_list { |
| 85 | uint64_t resrvd; |
| 86 | uint32_t num_bufs; |
| 87 | uint32_t num_mapped_bufs; |
| 88 | struct qat_alg_buf bufers[]; |
| 89 | } __packed __aligned(64); |
| 90 | |
| 91 | /* Common content descriptor */ |
| 92 | struct qat_alg_cd { |
| 93 | union { |
| 94 | struct qat_enc { /* Encrypt content desc */ |
| 95 | struct icp_qat_hw_cipher_algo_blk cipher; |
| 96 | struct icp_qat_hw_auth_algo_blk hash; |
| 97 | } qat_enc_cd; |
| 98 | struct qat_dec { /* Decrytp content desc */ |
| 99 | struct icp_qat_hw_auth_algo_blk hash; |
| 100 | struct icp_qat_hw_cipher_algo_blk cipher; |
| 101 | } qat_dec_cd; |
| 102 | }; |
| 103 | } __aligned(64); |
| 104 | |
| 105 | #define MAX_AUTH_STATE_SIZE sizeof(struct icp_qat_hw_auth_algo_blk) |
| 106 | |
| 107 | struct qat_auth_state { |
Tadeusz Struk | 26c3af6 | 2014-09-10 14:07:36 -0700 | [diff] [blame] | 108 | uint8_t data[MAX_AUTH_STATE_SIZE + 64]; |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 109 | } __aligned(64); |
| 110 | |
| 111 | struct qat_alg_session_ctx { |
| 112 | struct qat_alg_cd *enc_cd; |
| 113 | dma_addr_t enc_cd_paddr; |
| 114 | struct qat_alg_cd *dec_cd; |
| 115 | dma_addr_t dec_cd_paddr; |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 116 | struct icp_qat_fw_la_bulk_req enc_fw_req_tmpl; |
| 117 | struct icp_qat_fw_la_bulk_req dec_fw_req_tmpl; |
| 118 | struct qat_crypto_instance *inst; |
| 119 | struct crypto_tfm *tfm; |
| 120 | struct crypto_shash *hash_tfm; |
| 121 | enum icp_qat_hw_auth_algo qat_hash_alg; |
| 122 | uint8_t salt[AES_BLOCK_SIZE]; |
| 123 | spinlock_t lock; /* protects qat_alg_session_ctx struct */ |
| 124 | }; |
| 125 | |
| 126 | static int get_current_node(void) |
| 127 | { |
| 128 | return cpu_data(current_thread_info()->cpu).phys_proc_id; |
| 129 | } |
| 130 | |
| 131 | static int qat_get_inter_state_size(enum icp_qat_hw_auth_algo qat_hash_alg) |
| 132 | { |
| 133 | switch (qat_hash_alg) { |
| 134 | case ICP_QAT_HW_AUTH_ALGO_SHA1: |
| 135 | return ICP_QAT_HW_SHA1_STATE1_SZ; |
| 136 | case ICP_QAT_HW_AUTH_ALGO_SHA256: |
| 137 | return ICP_QAT_HW_SHA256_STATE1_SZ; |
| 138 | case ICP_QAT_HW_AUTH_ALGO_SHA512: |
| 139 | return ICP_QAT_HW_SHA512_STATE1_SZ; |
| 140 | default: |
| 141 | return -EFAULT; |
| 142 | }; |
| 143 | return -EFAULT; |
| 144 | } |
| 145 | |
| 146 | static int qat_alg_do_precomputes(struct icp_qat_hw_auth_algo_blk *hash, |
| 147 | struct qat_alg_session_ctx *ctx, |
| 148 | const uint8_t *auth_key, |
Tadeusz Struk | 26c3af6 | 2014-09-10 14:07:36 -0700 | [diff] [blame] | 149 | unsigned int auth_keylen) |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 150 | { |
Tadeusz Struk | 26c3af6 | 2014-09-10 14:07:36 -0700 | [diff] [blame] | 151 | struct qat_auth_state auth_state; |
Behan Webster | 37e5265 | 2014-04-04 18:18:00 -0300 | [diff] [blame^] | 152 | SHASH_DESC_ON_STACK(shash, ctx->hash_tfm); |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 153 | struct sha1_state sha1; |
| 154 | struct sha256_state sha256; |
| 155 | struct sha512_state sha512; |
| 156 | int block_size = crypto_shash_blocksize(ctx->hash_tfm); |
| 157 | int digest_size = crypto_shash_digestsize(ctx->hash_tfm); |
Tadeusz Struk | 26c3af6 | 2014-09-10 14:07:36 -0700 | [diff] [blame] | 158 | uint8_t *ipad = auth_state.data; |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 159 | uint8_t *opad = ipad + block_size; |
| 160 | __be32 *hash_state_out; |
| 161 | __be64 *hash512_state_out; |
| 162 | int i, offset; |
| 163 | |
Tadeusz Struk | 26c3af6 | 2014-09-10 14:07:36 -0700 | [diff] [blame] | 164 | memset(auth_state.data, '\0', MAX_AUTH_STATE_SIZE + 64); |
Behan Webster | 37e5265 | 2014-04-04 18:18:00 -0300 | [diff] [blame^] | 165 | shash->tfm = ctx->hash_tfm; |
| 166 | shash->flags = 0x0; |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 167 | |
| 168 | if (auth_keylen > block_size) { |
| 169 | char buff[SHA512_BLOCK_SIZE]; |
Behan Webster | 37e5265 | 2014-04-04 18:18:00 -0300 | [diff] [blame^] | 170 | int ret = crypto_shash_digest(shash, auth_key, |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 171 | auth_keylen, buff); |
| 172 | if (ret) |
| 173 | return ret; |
| 174 | |
| 175 | memcpy(ipad, buff, digest_size); |
| 176 | memcpy(opad, buff, digest_size); |
| 177 | memset(ipad + digest_size, 0, block_size - digest_size); |
| 178 | memset(opad + digest_size, 0, block_size - digest_size); |
| 179 | } else { |
| 180 | memcpy(ipad, auth_key, auth_keylen); |
| 181 | memcpy(opad, auth_key, auth_keylen); |
| 182 | memset(ipad + auth_keylen, 0, block_size - auth_keylen); |
| 183 | memset(opad + auth_keylen, 0, block_size - auth_keylen); |
| 184 | } |
| 185 | |
| 186 | for (i = 0; i < block_size; i++) { |
| 187 | char *ipad_ptr = ipad + i; |
| 188 | char *opad_ptr = opad + i; |
| 189 | *ipad_ptr ^= 0x36; |
| 190 | *opad_ptr ^= 0x5C; |
| 191 | } |
| 192 | |
Behan Webster | 37e5265 | 2014-04-04 18:18:00 -0300 | [diff] [blame^] | 193 | if (crypto_shash_init(shash)) |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 194 | return -EFAULT; |
| 195 | |
Behan Webster | 37e5265 | 2014-04-04 18:18:00 -0300 | [diff] [blame^] | 196 | if (crypto_shash_update(shash, ipad, block_size)) |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 197 | return -EFAULT; |
| 198 | |
| 199 | hash_state_out = (__be32 *)hash->sha.state1; |
| 200 | hash512_state_out = (__be64 *)hash_state_out; |
| 201 | |
| 202 | switch (ctx->qat_hash_alg) { |
| 203 | case ICP_QAT_HW_AUTH_ALGO_SHA1: |
Behan Webster | 37e5265 | 2014-04-04 18:18:00 -0300 | [diff] [blame^] | 204 | if (crypto_shash_export(shash, &sha1)) |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 205 | return -EFAULT; |
| 206 | for (i = 0; i < digest_size >> 2; i++, hash_state_out++) |
| 207 | *hash_state_out = cpu_to_be32(*(sha1.state + i)); |
| 208 | break; |
| 209 | case ICP_QAT_HW_AUTH_ALGO_SHA256: |
Behan Webster | 37e5265 | 2014-04-04 18:18:00 -0300 | [diff] [blame^] | 210 | if (crypto_shash_export(shash, &sha256)) |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 211 | return -EFAULT; |
| 212 | for (i = 0; i < digest_size >> 2; i++, hash_state_out++) |
| 213 | *hash_state_out = cpu_to_be32(*(sha256.state + i)); |
| 214 | break; |
| 215 | case ICP_QAT_HW_AUTH_ALGO_SHA512: |
Behan Webster | 37e5265 | 2014-04-04 18:18:00 -0300 | [diff] [blame^] | 216 | if (crypto_shash_export(shash, &sha512)) |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 217 | return -EFAULT; |
| 218 | for (i = 0; i < digest_size >> 3; i++, hash512_state_out++) |
| 219 | *hash512_state_out = cpu_to_be64(*(sha512.state + i)); |
| 220 | break; |
| 221 | default: |
| 222 | return -EFAULT; |
| 223 | } |
| 224 | |
Behan Webster | 37e5265 | 2014-04-04 18:18:00 -0300 | [diff] [blame^] | 225 | if (crypto_shash_init(shash)) |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 226 | return -EFAULT; |
| 227 | |
Behan Webster | 37e5265 | 2014-04-04 18:18:00 -0300 | [diff] [blame^] | 228 | if (crypto_shash_update(shash, opad, block_size)) |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 229 | return -EFAULT; |
| 230 | |
| 231 | offset = round_up(qat_get_inter_state_size(ctx->qat_hash_alg), 8); |
| 232 | hash_state_out = (__be32 *)(hash->sha.state1 + offset); |
| 233 | hash512_state_out = (__be64 *)hash_state_out; |
| 234 | |
| 235 | switch (ctx->qat_hash_alg) { |
| 236 | case ICP_QAT_HW_AUTH_ALGO_SHA1: |
Behan Webster | 37e5265 | 2014-04-04 18:18:00 -0300 | [diff] [blame^] | 237 | if (crypto_shash_export(shash, &sha1)) |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 238 | return -EFAULT; |
| 239 | for (i = 0; i < digest_size >> 2; i++, hash_state_out++) |
| 240 | *hash_state_out = cpu_to_be32(*(sha1.state + i)); |
| 241 | break; |
| 242 | case ICP_QAT_HW_AUTH_ALGO_SHA256: |
Behan Webster | 37e5265 | 2014-04-04 18:18:00 -0300 | [diff] [blame^] | 243 | if (crypto_shash_export(shash, &sha256)) |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 244 | return -EFAULT; |
| 245 | for (i = 0; i < digest_size >> 2; i++, hash_state_out++) |
| 246 | *hash_state_out = cpu_to_be32(*(sha256.state + i)); |
| 247 | break; |
| 248 | case ICP_QAT_HW_AUTH_ALGO_SHA512: |
Behan Webster | 37e5265 | 2014-04-04 18:18:00 -0300 | [diff] [blame^] | 249 | if (crypto_shash_export(shash, &sha512)) |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 250 | return -EFAULT; |
| 251 | for (i = 0; i < digest_size >> 3; i++, hash512_state_out++) |
| 252 | *hash512_state_out = cpu_to_be64(*(sha512.state + i)); |
| 253 | break; |
| 254 | default: |
| 255 | return -EFAULT; |
| 256 | } |
| 257 | return 0; |
| 258 | } |
| 259 | |
| 260 | static void qat_alg_init_common_hdr(struct icp_qat_fw_comn_req_hdr *header) |
| 261 | { |
| 262 | header->hdr_flags = |
| 263 | ICP_QAT_FW_COMN_HDR_FLAGS_BUILD(ICP_QAT_FW_COMN_REQ_FLAG_SET); |
| 264 | header->service_type = ICP_QAT_FW_COMN_REQ_CPM_FW_LA; |
| 265 | header->comn_req_flags = |
| 266 | ICP_QAT_FW_COMN_FLAGS_BUILD(QAT_COMN_CD_FLD_TYPE_64BIT_ADR, |
| 267 | QAT_COMN_PTR_TYPE_SGL); |
| 268 | ICP_QAT_FW_LA_DIGEST_IN_BUFFER_SET(header->serv_specif_flags, |
| 269 | ICP_QAT_FW_LA_DIGEST_IN_BUFFER); |
| 270 | ICP_QAT_FW_LA_PARTIAL_SET(header->serv_specif_flags, |
| 271 | ICP_QAT_FW_LA_PARTIAL_NONE); |
| 272 | ICP_QAT_FW_LA_CIPH_IV_FLD_FLAG_SET(header->serv_specif_flags, |
| 273 | ICP_QAT_FW_CIPH_IV_16BYTE_DATA); |
| 274 | ICP_QAT_FW_LA_PROTO_SET(header->serv_specif_flags, |
| 275 | ICP_QAT_FW_LA_NO_PROTO); |
| 276 | ICP_QAT_FW_LA_UPDATE_STATE_SET(header->serv_specif_flags, |
| 277 | ICP_QAT_FW_LA_NO_UPDATE_STATE); |
| 278 | } |
| 279 | |
| 280 | static int qat_alg_init_enc_session(struct qat_alg_session_ctx *ctx, |
| 281 | int alg, struct crypto_authenc_keys *keys) |
| 282 | { |
| 283 | struct crypto_aead *aead_tfm = __crypto_aead_cast(ctx->tfm); |
| 284 | unsigned int digestsize = crypto_aead_crt(aead_tfm)->authsize; |
| 285 | struct qat_enc *enc_ctx = &ctx->enc_cd->qat_enc_cd; |
| 286 | struct icp_qat_hw_cipher_algo_blk *cipher = &enc_ctx->cipher; |
| 287 | struct icp_qat_hw_auth_algo_blk *hash = |
| 288 | (struct icp_qat_hw_auth_algo_blk *)((char *)enc_ctx + |
| 289 | sizeof(struct icp_qat_hw_auth_setup) + keys->enckeylen); |
| 290 | struct icp_qat_fw_la_bulk_req *req_tmpl = &ctx->enc_fw_req_tmpl; |
| 291 | struct icp_qat_fw_comn_req_hdr_cd_pars *cd_pars = &req_tmpl->cd_pars; |
| 292 | struct icp_qat_fw_comn_req_hdr *header = &req_tmpl->comn_hdr; |
| 293 | void *ptr = &req_tmpl->cd_ctrl; |
| 294 | struct icp_qat_fw_cipher_cd_ctrl_hdr *cipher_cd_ctrl = ptr; |
| 295 | struct icp_qat_fw_auth_cd_ctrl_hdr *hash_cd_ctrl = ptr; |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 296 | |
| 297 | /* CD setup */ |
| 298 | cipher->aes.cipher_config.val = QAT_AES_HW_CONFIG_ENC(alg); |
| 299 | memcpy(cipher->aes.key, keys->enckey, keys->enckeylen); |
| 300 | hash->sha.inner_setup.auth_config.config = |
| 301 | ICP_QAT_HW_AUTH_CONFIG_BUILD(ICP_QAT_HW_AUTH_MODE1, |
| 302 | ctx->qat_hash_alg, digestsize); |
| 303 | hash->sha.inner_setup.auth_counter.counter = |
| 304 | cpu_to_be32(crypto_shash_blocksize(ctx->hash_tfm)); |
| 305 | |
Tadeusz Struk | 26c3af6 | 2014-09-10 14:07:36 -0700 | [diff] [blame] | 306 | if (qat_alg_do_precomputes(hash, ctx, keys->authkey, keys->authkeylen)) |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 307 | return -EFAULT; |
| 308 | |
| 309 | /* Request setup */ |
| 310 | qat_alg_init_common_hdr(header); |
| 311 | header->service_cmd_id = ICP_QAT_FW_LA_CMD_CIPHER_HASH; |
| 312 | ICP_QAT_FW_LA_RET_AUTH_SET(header->serv_specif_flags, |
| 313 | ICP_QAT_FW_LA_RET_AUTH_RES); |
| 314 | ICP_QAT_FW_LA_CMP_AUTH_SET(header->serv_specif_flags, |
| 315 | ICP_QAT_FW_LA_NO_CMP_AUTH_RES); |
| 316 | cd_pars->u.s.content_desc_addr = ctx->enc_cd_paddr; |
| 317 | cd_pars->u.s.content_desc_params_sz = sizeof(struct qat_alg_cd) >> 3; |
| 318 | |
| 319 | /* Cipher CD config setup */ |
| 320 | cipher_cd_ctrl->cipher_key_sz = keys->enckeylen >> 3; |
| 321 | cipher_cd_ctrl->cipher_state_sz = AES_BLOCK_SIZE >> 3; |
| 322 | cipher_cd_ctrl->cipher_cfg_offset = 0; |
| 323 | ICP_QAT_FW_COMN_CURR_ID_SET(cipher_cd_ctrl, ICP_QAT_FW_SLICE_CIPHER); |
| 324 | ICP_QAT_FW_COMN_NEXT_ID_SET(cipher_cd_ctrl, ICP_QAT_FW_SLICE_AUTH); |
| 325 | /* Auth CD config setup */ |
| 326 | hash_cd_ctrl->hash_cfg_offset = ((char *)hash - (char *)cipher) >> 3; |
| 327 | hash_cd_ctrl->hash_flags = ICP_QAT_FW_AUTH_HDR_FLAG_NO_NESTED; |
| 328 | hash_cd_ctrl->inner_res_sz = digestsize; |
| 329 | hash_cd_ctrl->final_sz = digestsize; |
| 330 | |
| 331 | switch (ctx->qat_hash_alg) { |
| 332 | case ICP_QAT_HW_AUTH_ALGO_SHA1: |
| 333 | hash_cd_ctrl->inner_state1_sz = |
| 334 | round_up(ICP_QAT_HW_SHA1_STATE1_SZ, 8); |
| 335 | hash_cd_ctrl->inner_state2_sz = |
| 336 | round_up(ICP_QAT_HW_SHA1_STATE2_SZ, 8); |
| 337 | break; |
| 338 | case ICP_QAT_HW_AUTH_ALGO_SHA256: |
| 339 | hash_cd_ctrl->inner_state1_sz = ICP_QAT_HW_SHA256_STATE1_SZ; |
| 340 | hash_cd_ctrl->inner_state2_sz = ICP_QAT_HW_SHA256_STATE2_SZ; |
| 341 | break; |
| 342 | case ICP_QAT_HW_AUTH_ALGO_SHA512: |
| 343 | hash_cd_ctrl->inner_state1_sz = ICP_QAT_HW_SHA512_STATE1_SZ; |
| 344 | hash_cd_ctrl->inner_state2_sz = ICP_QAT_HW_SHA512_STATE2_SZ; |
| 345 | break; |
| 346 | default: |
| 347 | break; |
| 348 | } |
| 349 | hash_cd_ctrl->inner_state2_offset = hash_cd_ctrl->hash_cfg_offset + |
| 350 | ((sizeof(struct icp_qat_hw_auth_setup) + |
| 351 | round_up(hash_cd_ctrl->inner_state1_sz, 8)) >> 3); |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 352 | ICP_QAT_FW_COMN_CURR_ID_SET(hash_cd_ctrl, ICP_QAT_FW_SLICE_AUTH); |
| 353 | ICP_QAT_FW_COMN_NEXT_ID_SET(hash_cd_ctrl, ICP_QAT_FW_SLICE_DRAM_WR); |
| 354 | return 0; |
| 355 | } |
| 356 | |
| 357 | static int qat_alg_init_dec_session(struct qat_alg_session_ctx *ctx, |
| 358 | int alg, struct crypto_authenc_keys *keys) |
| 359 | { |
| 360 | struct crypto_aead *aead_tfm = __crypto_aead_cast(ctx->tfm); |
| 361 | unsigned int digestsize = crypto_aead_crt(aead_tfm)->authsize; |
| 362 | struct qat_dec *dec_ctx = &ctx->dec_cd->qat_dec_cd; |
| 363 | struct icp_qat_hw_auth_algo_blk *hash = &dec_ctx->hash; |
| 364 | struct icp_qat_hw_cipher_algo_blk *cipher = |
| 365 | (struct icp_qat_hw_cipher_algo_blk *)((char *)dec_ctx + |
| 366 | sizeof(struct icp_qat_hw_auth_setup) + |
| 367 | roundup(crypto_shash_digestsize(ctx->hash_tfm), 8) * 2); |
| 368 | struct icp_qat_fw_la_bulk_req *req_tmpl = &ctx->dec_fw_req_tmpl; |
| 369 | struct icp_qat_fw_comn_req_hdr_cd_pars *cd_pars = &req_tmpl->cd_pars; |
| 370 | struct icp_qat_fw_comn_req_hdr *header = &req_tmpl->comn_hdr; |
| 371 | void *ptr = &req_tmpl->cd_ctrl; |
| 372 | struct icp_qat_fw_cipher_cd_ctrl_hdr *cipher_cd_ctrl = ptr; |
| 373 | struct icp_qat_fw_auth_cd_ctrl_hdr *hash_cd_ctrl = ptr; |
| 374 | struct icp_qat_fw_la_auth_req_params *auth_param = |
| 375 | (struct icp_qat_fw_la_auth_req_params *) |
| 376 | ((char *)&req_tmpl->serv_specif_rqpars + |
| 377 | sizeof(struct icp_qat_fw_la_cipher_req_params)); |
| 378 | |
| 379 | /* CD setup */ |
| 380 | cipher->aes.cipher_config.val = QAT_AES_HW_CONFIG_DEC(alg); |
| 381 | memcpy(cipher->aes.key, keys->enckey, keys->enckeylen); |
| 382 | hash->sha.inner_setup.auth_config.config = |
| 383 | ICP_QAT_HW_AUTH_CONFIG_BUILD(ICP_QAT_HW_AUTH_MODE1, |
| 384 | ctx->qat_hash_alg, |
| 385 | digestsize); |
| 386 | hash->sha.inner_setup.auth_counter.counter = |
| 387 | cpu_to_be32(crypto_shash_blocksize(ctx->hash_tfm)); |
| 388 | |
Tadeusz Struk | 26c3af6 | 2014-09-10 14:07:36 -0700 | [diff] [blame] | 389 | if (qat_alg_do_precomputes(hash, ctx, keys->authkey, keys->authkeylen)) |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 390 | return -EFAULT; |
| 391 | |
| 392 | /* Request setup */ |
| 393 | qat_alg_init_common_hdr(header); |
| 394 | header->service_cmd_id = ICP_QAT_FW_LA_CMD_HASH_CIPHER; |
| 395 | ICP_QAT_FW_LA_RET_AUTH_SET(header->serv_specif_flags, |
| 396 | ICP_QAT_FW_LA_NO_RET_AUTH_RES); |
| 397 | ICP_QAT_FW_LA_CMP_AUTH_SET(header->serv_specif_flags, |
| 398 | ICP_QAT_FW_LA_CMP_AUTH_RES); |
| 399 | cd_pars->u.s.content_desc_addr = ctx->dec_cd_paddr; |
| 400 | cd_pars->u.s.content_desc_params_sz = sizeof(struct qat_alg_cd) >> 3; |
| 401 | |
| 402 | /* Cipher CD config setup */ |
| 403 | cipher_cd_ctrl->cipher_key_sz = keys->enckeylen >> 3; |
| 404 | cipher_cd_ctrl->cipher_state_sz = AES_BLOCK_SIZE >> 3; |
| 405 | cipher_cd_ctrl->cipher_cfg_offset = |
| 406 | (sizeof(struct icp_qat_hw_auth_setup) + |
| 407 | roundup(crypto_shash_digestsize(ctx->hash_tfm), 8) * 2) >> 3; |
| 408 | ICP_QAT_FW_COMN_CURR_ID_SET(cipher_cd_ctrl, ICP_QAT_FW_SLICE_CIPHER); |
| 409 | ICP_QAT_FW_COMN_NEXT_ID_SET(cipher_cd_ctrl, ICP_QAT_FW_SLICE_DRAM_WR); |
| 410 | |
| 411 | /* Auth CD config setup */ |
| 412 | hash_cd_ctrl->hash_cfg_offset = 0; |
| 413 | hash_cd_ctrl->hash_flags = ICP_QAT_FW_AUTH_HDR_FLAG_NO_NESTED; |
| 414 | hash_cd_ctrl->inner_res_sz = digestsize; |
| 415 | hash_cd_ctrl->final_sz = digestsize; |
| 416 | |
| 417 | switch (ctx->qat_hash_alg) { |
| 418 | case ICP_QAT_HW_AUTH_ALGO_SHA1: |
| 419 | hash_cd_ctrl->inner_state1_sz = |
| 420 | round_up(ICP_QAT_HW_SHA1_STATE1_SZ, 8); |
| 421 | hash_cd_ctrl->inner_state2_sz = |
| 422 | round_up(ICP_QAT_HW_SHA1_STATE2_SZ, 8); |
| 423 | break; |
| 424 | case ICP_QAT_HW_AUTH_ALGO_SHA256: |
| 425 | hash_cd_ctrl->inner_state1_sz = ICP_QAT_HW_SHA256_STATE1_SZ; |
| 426 | hash_cd_ctrl->inner_state2_sz = ICP_QAT_HW_SHA256_STATE2_SZ; |
| 427 | break; |
| 428 | case ICP_QAT_HW_AUTH_ALGO_SHA512: |
| 429 | hash_cd_ctrl->inner_state1_sz = ICP_QAT_HW_SHA512_STATE1_SZ; |
| 430 | hash_cd_ctrl->inner_state2_sz = ICP_QAT_HW_SHA512_STATE2_SZ; |
| 431 | break; |
| 432 | default: |
| 433 | break; |
| 434 | } |
| 435 | |
| 436 | hash_cd_ctrl->inner_state2_offset = hash_cd_ctrl->hash_cfg_offset + |
| 437 | ((sizeof(struct icp_qat_hw_auth_setup) + |
| 438 | round_up(hash_cd_ctrl->inner_state1_sz, 8)) >> 3); |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 439 | auth_param->auth_res_sz = digestsize; |
| 440 | ICP_QAT_FW_COMN_CURR_ID_SET(hash_cd_ctrl, ICP_QAT_FW_SLICE_AUTH); |
| 441 | ICP_QAT_FW_COMN_NEXT_ID_SET(hash_cd_ctrl, ICP_QAT_FW_SLICE_CIPHER); |
| 442 | return 0; |
| 443 | } |
| 444 | |
| 445 | static int qat_alg_init_sessions(struct qat_alg_session_ctx *ctx, |
| 446 | const uint8_t *key, unsigned int keylen) |
| 447 | { |
| 448 | struct crypto_authenc_keys keys; |
| 449 | int alg; |
| 450 | |
| 451 | if (crypto_rng_get_bytes(crypto_default_rng, ctx->salt, AES_BLOCK_SIZE)) |
| 452 | return -EFAULT; |
| 453 | |
| 454 | if (crypto_authenc_extractkeys(&keys, key, keylen)) |
| 455 | goto bad_key; |
| 456 | |
| 457 | switch (keys.enckeylen) { |
| 458 | case AES_KEYSIZE_128: |
| 459 | alg = ICP_QAT_HW_CIPHER_ALGO_AES128; |
| 460 | break; |
| 461 | case AES_KEYSIZE_192: |
| 462 | alg = ICP_QAT_HW_CIPHER_ALGO_AES192; |
| 463 | break; |
| 464 | case AES_KEYSIZE_256: |
| 465 | alg = ICP_QAT_HW_CIPHER_ALGO_AES256; |
| 466 | break; |
| 467 | default: |
| 468 | goto bad_key; |
| 469 | break; |
| 470 | } |
| 471 | |
| 472 | if (qat_alg_init_enc_session(ctx, alg, &keys)) |
| 473 | goto error; |
| 474 | |
| 475 | if (qat_alg_init_dec_session(ctx, alg, &keys)) |
| 476 | goto error; |
| 477 | |
| 478 | return 0; |
| 479 | bad_key: |
| 480 | crypto_tfm_set_flags(ctx->tfm, CRYPTO_TFM_RES_BAD_KEY_LEN); |
| 481 | return -EINVAL; |
| 482 | error: |
| 483 | return -EFAULT; |
| 484 | } |
| 485 | |
| 486 | static int qat_alg_setkey(struct crypto_aead *tfm, const uint8_t *key, |
| 487 | unsigned int keylen) |
| 488 | { |
| 489 | struct qat_alg_session_ctx *ctx = crypto_aead_ctx(tfm); |
| 490 | struct device *dev; |
| 491 | |
| 492 | spin_lock(&ctx->lock); |
| 493 | if (ctx->enc_cd) { |
| 494 | /* rekeying */ |
| 495 | dev = &GET_DEV(ctx->inst->accel_dev); |
| 496 | memset(ctx->enc_cd, 0, sizeof(struct qat_alg_cd)); |
| 497 | memset(ctx->dec_cd, 0, sizeof(struct qat_alg_cd)); |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 498 | memset(&ctx->enc_fw_req_tmpl, 0, |
| 499 | sizeof(struct icp_qat_fw_la_bulk_req)); |
| 500 | memset(&ctx->dec_fw_req_tmpl, 0, |
| 501 | sizeof(struct icp_qat_fw_la_bulk_req)); |
| 502 | } else { |
| 503 | /* new key */ |
| 504 | int node = get_current_node(); |
| 505 | struct qat_crypto_instance *inst = |
| 506 | qat_crypto_get_instance_node(node); |
| 507 | if (!inst) { |
| 508 | spin_unlock(&ctx->lock); |
| 509 | return -EINVAL; |
| 510 | } |
| 511 | |
| 512 | dev = &GET_DEV(inst->accel_dev); |
| 513 | ctx->inst = inst; |
| 514 | ctx->enc_cd = dma_zalloc_coherent(dev, |
| 515 | sizeof(struct qat_alg_cd), |
| 516 | &ctx->enc_cd_paddr, |
| 517 | GFP_ATOMIC); |
| 518 | if (!ctx->enc_cd) { |
| 519 | spin_unlock(&ctx->lock); |
| 520 | return -ENOMEM; |
| 521 | } |
| 522 | ctx->dec_cd = dma_zalloc_coherent(dev, |
| 523 | sizeof(struct qat_alg_cd), |
| 524 | &ctx->dec_cd_paddr, |
| 525 | GFP_ATOMIC); |
| 526 | if (!ctx->dec_cd) { |
| 527 | spin_unlock(&ctx->lock); |
| 528 | goto out_free_enc; |
| 529 | } |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 530 | } |
| 531 | spin_unlock(&ctx->lock); |
| 532 | if (qat_alg_init_sessions(ctx, key, keylen)) |
| 533 | goto out_free_all; |
| 534 | |
| 535 | return 0; |
| 536 | |
| 537 | out_free_all: |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 538 | dma_free_coherent(dev, sizeof(struct qat_alg_cd), |
| 539 | ctx->dec_cd, ctx->dec_cd_paddr); |
| 540 | ctx->dec_cd = NULL; |
| 541 | out_free_enc: |
| 542 | dma_free_coherent(dev, sizeof(struct qat_alg_cd), |
| 543 | ctx->enc_cd, ctx->enc_cd_paddr); |
| 544 | ctx->enc_cd = NULL; |
| 545 | return -ENOMEM; |
| 546 | } |
| 547 | |
| 548 | static void qat_alg_free_bufl(struct qat_crypto_instance *inst, |
| 549 | struct qat_crypto_request *qat_req) |
| 550 | { |
| 551 | struct device *dev = &GET_DEV(inst->accel_dev); |
| 552 | struct qat_alg_buf_list *bl = qat_req->buf.bl; |
| 553 | struct qat_alg_buf_list *blout = qat_req->buf.blout; |
| 554 | dma_addr_t blp = qat_req->buf.blp; |
| 555 | dma_addr_t blpout = qat_req->buf.bloutp; |
| 556 | size_t sz = qat_req->buf.sz; |
| 557 | int i, bufs = bl->num_bufs; |
| 558 | |
| 559 | for (i = 0; i < bl->num_bufs; i++) |
| 560 | dma_unmap_single(dev, bl->bufers[i].addr, |
| 561 | bl->bufers[i].len, DMA_BIDIRECTIONAL); |
| 562 | |
| 563 | dma_unmap_single(dev, blp, sz, DMA_TO_DEVICE); |
| 564 | kfree(bl); |
| 565 | if (blp != blpout) { |
| 566 | /* If out of place operation dma unmap only data */ |
| 567 | int bufless = bufs - blout->num_mapped_bufs; |
Tadeusz Struk | d65071e | 2014-06-24 15:19:34 -0700 | [diff] [blame] | 568 | |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 569 | for (i = bufless; i < bufs; i++) { |
| 570 | dma_unmap_single(dev, blout->bufers[i].addr, |
| 571 | blout->bufers[i].len, |
| 572 | DMA_BIDIRECTIONAL); |
| 573 | } |
| 574 | dma_unmap_single(dev, blpout, sz, DMA_TO_DEVICE); |
| 575 | kfree(blout); |
| 576 | } |
| 577 | } |
| 578 | |
| 579 | static int qat_alg_sgl_to_bufl(struct qat_crypto_instance *inst, |
| 580 | struct scatterlist *assoc, |
| 581 | struct scatterlist *sgl, |
| 582 | struct scatterlist *sglout, uint8_t *iv, |
| 583 | uint8_t ivlen, |
| 584 | struct qat_crypto_request *qat_req) |
| 585 | { |
| 586 | struct device *dev = &GET_DEV(inst->accel_dev); |
| 587 | int i, bufs = 0, n = sg_nents(sgl), assoc_n = sg_nents(assoc); |
| 588 | struct qat_alg_buf_list *bufl; |
| 589 | struct qat_alg_buf_list *buflout = NULL; |
| 590 | dma_addr_t blp; |
| 591 | dma_addr_t bloutp = 0; |
| 592 | struct scatterlist *sg; |
| 593 | size_t sz = sizeof(struct qat_alg_buf_list) + |
| 594 | ((1 + n + assoc_n) * sizeof(struct qat_alg_buf)); |
| 595 | |
| 596 | if (unlikely(!n)) |
| 597 | return -EINVAL; |
| 598 | |
| 599 | bufl = kmalloc_node(sz, GFP_ATOMIC, inst->accel_dev->numa_node); |
| 600 | if (unlikely(!bufl)) |
| 601 | return -ENOMEM; |
| 602 | |
| 603 | blp = dma_map_single(dev, bufl, sz, DMA_TO_DEVICE); |
| 604 | if (unlikely(dma_mapping_error(dev, blp))) |
| 605 | goto err; |
| 606 | |
| 607 | for_each_sg(assoc, sg, assoc_n, i) { |
| 608 | bufl->bufers[bufs].addr = dma_map_single(dev, |
| 609 | sg_virt(sg), |
| 610 | sg->length, |
| 611 | DMA_BIDIRECTIONAL); |
| 612 | bufl->bufers[bufs].len = sg->length; |
| 613 | if (unlikely(dma_mapping_error(dev, bufl->bufers[bufs].addr))) |
| 614 | goto err; |
| 615 | bufs++; |
| 616 | } |
| 617 | bufl->bufers[bufs].addr = dma_map_single(dev, iv, ivlen, |
| 618 | DMA_BIDIRECTIONAL); |
| 619 | bufl->bufers[bufs].len = ivlen; |
| 620 | if (unlikely(dma_mapping_error(dev, bufl->bufers[bufs].addr))) |
| 621 | goto err; |
| 622 | bufs++; |
| 623 | |
| 624 | for_each_sg(sgl, sg, n, i) { |
| 625 | int y = i + bufs; |
Tadeusz Struk | d65071e | 2014-06-24 15:19:34 -0700 | [diff] [blame] | 626 | |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 627 | bufl->bufers[y].addr = dma_map_single(dev, sg_virt(sg), |
| 628 | sg->length, |
| 629 | DMA_BIDIRECTIONAL); |
| 630 | bufl->bufers[y].len = sg->length; |
| 631 | if (unlikely(dma_mapping_error(dev, bufl->bufers[y].addr))) |
| 632 | goto err; |
| 633 | } |
| 634 | bufl->num_bufs = n + bufs; |
| 635 | qat_req->buf.bl = bufl; |
| 636 | qat_req->buf.blp = blp; |
| 637 | qat_req->buf.sz = sz; |
| 638 | /* Handle out of place operation */ |
| 639 | if (sgl != sglout) { |
| 640 | struct qat_alg_buf *bufers; |
| 641 | |
| 642 | buflout = kmalloc_node(sz, GFP_ATOMIC, |
| 643 | inst->accel_dev->numa_node); |
| 644 | if (unlikely(!buflout)) |
| 645 | goto err; |
| 646 | bloutp = dma_map_single(dev, buflout, sz, DMA_TO_DEVICE); |
| 647 | if (unlikely(dma_mapping_error(dev, bloutp))) |
| 648 | goto err; |
| 649 | bufers = buflout->bufers; |
| 650 | /* For out of place operation dma map only data and |
| 651 | * reuse assoc mapping and iv */ |
| 652 | for (i = 0; i < bufs; i++) { |
| 653 | bufers[i].len = bufl->bufers[i].len; |
| 654 | bufers[i].addr = bufl->bufers[i].addr; |
| 655 | } |
| 656 | for_each_sg(sglout, sg, n, i) { |
| 657 | int y = i + bufs; |
Tadeusz Struk | d65071e | 2014-06-24 15:19:34 -0700 | [diff] [blame] | 658 | |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 659 | bufers[y].addr = dma_map_single(dev, sg_virt(sg), |
| 660 | sg->length, |
| 661 | DMA_BIDIRECTIONAL); |
| 662 | buflout->bufers[y].len = sg->length; |
| 663 | if (unlikely(dma_mapping_error(dev, bufers[y].addr))) |
| 664 | goto err; |
| 665 | } |
| 666 | buflout->num_bufs = n + bufs; |
| 667 | buflout->num_mapped_bufs = n; |
| 668 | qat_req->buf.blout = buflout; |
| 669 | qat_req->buf.bloutp = bloutp; |
| 670 | } else { |
| 671 | /* Otherwise set the src and dst to the same address */ |
| 672 | qat_req->buf.bloutp = qat_req->buf.blp; |
| 673 | } |
| 674 | return 0; |
| 675 | err: |
| 676 | dev_err(dev, "Failed to map buf for dma\n"); |
| 677 | for_each_sg(sgl, sg, n + bufs, i) { |
| 678 | if (!dma_mapping_error(dev, bufl->bufers[i].addr)) { |
| 679 | dma_unmap_single(dev, bufl->bufers[i].addr, |
| 680 | bufl->bufers[i].len, |
| 681 | DMA_BIDIRECTIONAL); |
| 682 | } |
| 683 | } |
| 684 | if (!dma_mapping_error(dev, blp)) |
| 685 | dma_unmap_single(dev, blp, sz, DMA_TO_DEVICE); |
| 686 | kfree(bufl); |
| 687 | if (sgl != sglout && buflout) { |
| 688 | for_each_sg(sglout, sg, n, i) { |
| 689 | int y = i + bufs; |
Tadeusz Struk | d65071e | 2014-06-24 15:19:34 -0700 | [diff] [blame] | 690 | |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 691 | if (!dma_mapping_error(dev, buflout->bufers[y].addr)) |
| 692 | dma_unmap_single(dev, buflout->bufers[y].addr, |
| 693 | buflout->bufers[y].len, |
| 694 | DMA_BIDIRECTIONAL); |
| 695 | } |
| 696 | if (!dma_mapping_error(dev, bloutp)) |
| 697 | dma_unmap_single(dev, bloutp, sz, DMA_TO_DEVICE); |
| 698 | kfree(buflout); |
| 699 | } |
| 700 | return -ENOMEM; |
| 701 | } |
| 702 | |
| 703 | void qat_alg_callback(void *resp) |
| 704 | { |
| 705 | struct icp_qat_fw_la_resp *qat_resp = resp; |
| 706 | struct qat_crypto_request *qat_req = |
Tadeusz Struk | bce3cc6 | 2014-06-24 15:19:24 -0700 | [diff] [blame] | 707 | (void *)(__force long)qat_resp->opaque_data; |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 708 | struct qat_alg_session_ctx *ctx = qat_req->ctx; |
| 709 | struct qat_crypto_instance *inst = ctx->inst; |
| 710 | struct aead_request *areq = qat_req->areq; |
| 711 | uint8_t stat_filed = qat_resp->comn_resp.comn_status; |
| 712 | int res = 0, qat_res = ICP_QAT_FW_COMN_RESP_CRYPTO_STAT_GET(stat_filed); |
| 713 | |
| 714 | qat_alg_free_bufl(inst, qat_req); |
| 715 | if (unlikely(qat_res != ICP_QAT_FW_COMN_STATUS_FLAG_OK)) |
| 716 | res = -EBADMSG; |
Tadeusz Struk | 45cff26 | 2014-07-25 15:55:26 -0700 | [diff] [blame] | 717 | areq->base.complete(&areq->base, res); |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 718 | } |
| 719 | |
| 720 | static int qat_alg_dec(struct aead_request *areq) |
| 721 | { |
| 722 | struct crypto_aead *aead_tfm = crypto_aead_reqtfm(areq); |
| 723 | struct crypto_tfm *tfm = crypto_aead_tfm(aead_tfm); |
| 724 | struct qat_alg_session_ctx *ctx = crypto_tfm_ctx(tfm); |
| 725 | struct qat_crypto_request *qat_req = aead_request_ctx(areq); |
| 726 | struct icp_qat_fw_la_cipher_req_params *cipher_param; |
| 727 | struct icp_qat_fw_la_auth_req_params *auth_param; |
| 728 | struct icp_qat_fw_la_bulk_req *msg; |
| 729 | int digst_size = crypto_aead_crt(aead_tfm)->authsize; |
| 730 | int ret, ctr = 0; |
| 731 | |
| 732 | ret = qat_alg_sgl_to_bufl(ctx->inst, areq->assoc, areq->src, areq->dst, |
| 733 | areq->iv, AES_BLOCK_SIZE, qat_req); |
| 734 | if (unlikely(ret)) |
| 735 | return ret; |
| 736 | |
| 737 | msg = &qat_req->req; |
| 738 | *msg = ctx->dec_fw_req_tmpl; |
| 739 | qat_req->ctx = ctx; |
| 740 | qat_req->areq = areq; |
Tadeusz Struk | bce3cc6 | 2014-06-24 15:19:24 -0700 | [diff] [blame] | 741 | qat_req->req.comn_mid.opaque_data = (uint64_t)(__force long)qat_req; |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 742 | qat_req->req.comn_mid.src_data_addr = qat_req->buf.blp; |
| 743 | qat_req->req.comn_mid.dest_data_addr = qat_req->buf.bloutp; |
| 744 | cipher_param = (void *)&qat_req->req.serv_specif_rqpars; |
| 745 | cipher_param->cipher_length = areq->cryptlen - digst_size; |
| 746 | cipher_param->cipher_offset = areq->assoclen + AES_BLOCK_SIZE; |
| 747 | memcpy(cipher_param->u.cipher_IV_array, areq->iv, AES_BLOCK_SIZE); |
| 748 | auth_param = (void *)((uint8_t *)cipher_param + sizeof(*cipher_param)); |
| 749 | auth_param->auth_off = 0; |
| 750 | auth_param->auth_len = areq->assoclen + |
| 751 | cipher_param->cipher_length + AES_BLOCK_SIZE; |
| 752 | do { |
| 753 | ret = adf_send_message(ctx->inst->sym_tx, (uint32_t *)msg); |
| 754 | } while (ret == -EAGAIN && ctr++ < 10); |
| 755 | |
| 756 | if (ret == -EAGAIN) { |
| 757 | qat_alg_free_bufl(ctx->inst, qat_req); |
| 758 | return -EBUSY; |
| 759 | } |
| 760 | return -EINPROGRESS; |
| 761 | } |
| 762 | |
| 763 | static int qat_alg_enc_internal(struct aead_request *areq, uint8_t *iv, |
| 764 | int enc_iv) |
| 765 | { |
| 766 | struct crypto_aead *aead_tfm = crypto_aead_reqtfm(areq); |
| 767 | struct crypto_tfm *tfm = crypto_aead_tfm(aead_tfm); |
| 768 | struct qat_alg_session_ctx *ctx = crypto_tfm_ctx(tfm); |
| 769 | struct qat_crypto_request *qat_req = aead_request_ctx(areq); |
| 770 | struct icp_qat_fw_la_cipher_req_params *cipher_param; |
| 771 | struct icp_qat_fw_la_auth_req_params *auth_param; |
| 772 | struct icp_qat_fw_la_bulk_req *msg; |
| 773 | int ret, ctr = 0; |
| 774 | |
| 775 | ret = qat_alg_sgl_to_bufl(ctx->inst, areq->assoc, areq->src, areq->dst, |
| 776 | iv, AES_BLOCK_SIZE, qat_req); |
| 777 | if (unlikely(ret)) |
| 778 | return ret; |
| 779 | |
| 780 | msg = &qat_req->req; |
| 781 | *msg = ctx->enc_fw_req_tmpl; |
| 782 | qat_req->ctx = ctx; |
| 783 | qat_req->areq = areq; |
Tadeusz Struk | bce3cc6 | 2014-06-24 15:19:24 -0700 | [diff] [blame] | 784 | qat_req->req.comn_mid.opaque_data = (uint64_t)(__force long)qat_req; |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 785 | qat_req->req.comn_mid.src_data_addr = qat_req->buf.blp; |
| 786 | qat_req->req.comn_mid.dest_data_addr = qat_req->buf.bloutp; |
| 787 | cipher_param = (void *)&qat_req->req.serv_specif_rqpars; |
| 788 | auth_param = (void *)((uint8_t *)cipher_param + sizeof(*cipher_param)); |
| 789 | |
| 790 | if (enc_iv) { |
| 791 | cipher_param->cipher_length = areq->cryptlen + AES_BLOCK_SIZE; |
| 792 | cipher_param->cipher_offset = areq->assoclen; |
| 793 | } else { |
| 794 | memcpy(cipher_param->u.cipher_IV_array, iv, AES_BLOCK_SIZE); |
| 795 | cipher_param->cipher_length = areq->cryptlen; |
| 796 | cipher_param->cipher_offset = areq->assoclen + AES_BLOCK_SIZE; |
| 797 | } |
| 798 | auth_param->auth_off = 0; |
| 799 | auth_param->auth_len = areq->assoclen + areq->cryptlen + AES_BLOCK_SIZE; |
| 800 | |
| 801 | do { |
| 802 | ret = adf_send_message(ctx->inst->sym_tx, (uint32_t *)msg); |
| 803 | } while (ret == -EAGAIN && ctr++ < 10); |
| 804 | |
| 805 | if (ret == -EAGAIN) { |
| 806 | qat_alg_free_bufl(ctx->inst, qat_req); |
| 807 | return -EBUSY; |
| 808 | } |
| 809 | return -EINPROGRESS; |
| 810 | } |
| 811 | |
| 812 | static int qat_alg_enc(struct aead_request *areq) |
| 813 | { |
| 814 | return qat_alg_enc_internal(areq, areq->iv, 0); |
| 815 | } |
| 816 | |
| 817 | static int qat_alg_genivenc(struct aead_givcrypt_request *req) |
| 818 | { |
| 819 | struct crypto_aead *aead_tfm = crypto_aead_reqtfm(&req->areq); |
| 820 | struct crypto_tfm *tfm = crypto_aead_tfm(aead_tfm); |
| 821 | struct qat_alg_session_ctx *ctx = crypto_tfm_ctx(tfm); |
| 822 | __be64 seq; |
| 823 | |
| 824 | memcpy(req->giv, ctx->salt, AES_BLOCK_SIZE); |
| 825 | seq = cpu_to_be64(req->seq); |
| 826 | memcpy(req->giv + AES_BLOCK_SIZE - sizeof(uint64_t), |
| 827 | &seq, sizeof(uint64_t)); |
| 828 | return qat_alg_enc_internal(&req->areq, req->giv, 1); |
| 829 | } |
| 830 | |
| 831 | static int qat_alg_init(struct crypto_tfm *tfm, |
| 832 | enum icp_qat_hw_auth_algo hash, const char *hash_name) |
| 833 | { |
| 834 | struct qat_alg_session_ctx *ctx = crypto_tfm_ctx(tfm); |
| 835 | |
| 836 | memset(ctx, '\0', sizeof(*ctx)); |
| 837 | ctx->hash_tfm = crypto_alloc_shash(hash_name, 0, 0); |
| 838 | if (IS_ERR(ctx->hash_tfm)) |
| 839 | return -EFAULT; |
| 840 | spin_lock_init(&ctx->lock); |
| 841 | ctx->qat_hash_alg = hash; |
| 842 | tfm->crt_aead.reqsize = sizeof(struct aead_request) + |
| 843 | sizeof(struct qat_crypto_request); |
| 844 | ctx->tfm = tfm; |
| 845 | return 0; |
| 846 | } |
| 847 | |
| 848 | static int qat_alg_sha1_init(struct crypto_tfm *tfm) |
| 849 | { |
| 850 | return qat_alg_init(tfm, ICP_QAT_HW_AUTH_ALGO_SHA1, "sha1"); |
| 851 | } |
| 852 | |
| 853 | static int qat_alg_sha256_init(struct crypto_tfm *tfm) |
| 854 | { |
| 855 | return qat_alg_init(tfm, ICP_QAT_HW_AUTH_ALGO_SHA256, "sha256"); |
| 856 | } |
| 857 | |
| 858 | static int qat_alg_sha512_init(struct crypto_tfm *tfm) |
| 859 | { |
| 860 | return qat_alg_init(tfm, ICP_QAT_HW_AUTH_ALGO_SHA512, "sha512"); |
| 861 | } |
| 862 | |
| 863 | static void qat_alg_exit(struct crypto_tfm *tfm) |
| 864 | { |
| 865 | struct qat_alg_session_ctx *ctx = crypto_tfm_ctx(tfm); |
| 866 | struct qat_crypto_instance *inst = ctx->inst; |
| 867 | struct device *dev; |
| 868 | |
| 869 | if (!IS_ERR(ctx->hash_tfm)) |
| 870 | crypto_free_shash(ctx->hash_tfm); |
| 871 | |
| 872 | if (!inst) |
| 873 | return; |
| 874 | |
| 875 | dev = &GET_DEV(inst->accel_dev); |
| 876 | if (ctx->enc_cd) |
| 877 | dma_free_coherent(dev, sizeof(struct qat_alg_cd), |
| 878 | ctx->enc_cd, ctx->enc_cd_paddr); |
| 879 | if (ctx->dec_cd) |
| 880 | dma_free_coherent(dev, sizeof(struct qat_alg_cd), |
| 881 | ctx->dec_cd, ctx->dec_cd_paddr); |
Tadeusz Struk | d370cec | 2014-06-05 13:43:32 -0700 | [diff] [blame] | 882 | qat_crypto_put_instance(inst); |
| 883 | } |
| 884 | |
| 885 | static struct crypto_alg qat_algs[] = { { |
| 886 | .cra_name = "authenc(hmac(sha1),cbc(aes))", |
| 887 | .cra_driver_name = "qat_aes_cbc_hmac_sha1", |
| 888 | .cra_priority = 4001, |
| 889 | .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC, |
| 890 | .cra_blocksize = AES_BLOCK_SIZE, |
| 891 | .cra_ctxsize = sizeof(struct qat_alg_session_ctx), |
| 892 | .cra_alignmask = 0, |
| 893 | .cra_type = &crypto_aead_type, |
| 894 | .cra_module = THIS_MODULE, |
| 895 | .cra_init = qat_alg_sha1_init, |
| 896 | .cra_exit = qat_alg_exit, |
| 897 | .cra_u = { |
| 898 | .aead = { |
| 899 | .setkey = qat_alg_setkey, |
| 900 | .decrypt = qat_alg_dec, |
| 901 | .encrypt = qat_alg_enc, |
| 902 | .givencrypt = qat_alg_genivenc, |
| 903 | .ivsize = AES_BLOCK_SIZE, |
| 904 | .maxauthsize = SHA1_DIGEST_SIZE, |
| 905 | }, |
| 906 | }, |
| 907 | }, { |
| 908 | .cra_name = "authenc(hmac(sha256),cbc(aes))", |
| 909 | .cra_driver_name = "qat_aes_cbc_hmac_sha256", |
| 910 | .cra_priority = 4001, |
| 911 | .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC, |
| 912 | .cra_blocksize = AES_BLOCK_SIZE, |
| 913 | .cra_ctxsize = sizeof(struct qat_alg_session_ctx), |
| 914 | .cra_alignmask = 0, |
| 915 | .cra_type = &crypto_aead_type, |
| 916 | .cra_module = THIS_MODULE, |
| 917 | .cra_init = qat_alg_sha256_init, |
| 918 | .cra_exit = qat_alg_exit, |
| 919 | .cra_u = { |
| 920 | .aead = { |
| 921 | .setkey = qat_alg_setkey, |
| 922 | .decrypt = qat_alg_dec, |
| 923 | .encrypt = qat_alg_enc, |
| 924 | .givencrypt = qat_alg_genivenc, |
| 925 | .ivsize = AES_BLOCK_SIZE, |
| 926 | .maxauthsize = SHA256_DIGEST_SIZE, |
| 927 | }, |
| 928 | }, |
| 929 | }, { |
| 930 | .cra_name = "authenc(hmac(sha512),cbc(aes))", |
| 931 | .cra_driver_name = "qat_aes_cbc_hmac_sha512", |
| 932 | .cra_priority = 4001, |
| 933 | .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC, |
| 934 | .cra_blocksize = AES_BLOCK_SIZE, |
| 935 | .cra_ctxsize = sizeof(struct qat_alg_session_ctx), |
| 936 | .cra_alignmask = 0, |
| 937 | .cra_type = &crypto_aead_type, |
| 938 | .cra_module = THIS_MODULE, |
| 939 | .cra_init = qat_alg_sha512_init, |
| 940 | .cra_exit = qat_alg_exit, |
| 941 | .cra_u = { |
| 942 | .aead = { |
| 943 | .setkey = qat_alg_setkey, |
| 944 | .decrypt = qat_alg_dec, |
| 945 | .encrypt = qat_alg_enc, |
| 946 | .givencrypt = qat_alg_genivenc, |
| 947 | .ivsize = AES_BLOCK_SIZE, |
| 948 | .maxauthsize = SHA512_DIGEST_SIZE, |
| 949 | }, |
| 950 | }, |
| 951 | } }; |
| 952 | |
| 953 | int qat_algs_register(void) |
| 954 | { |
| 955 | if (atomic_add_return(1, &active_dev) == 1) { |
| 956 | int i; |
| 957 | |
| 958 | for (i = 0; i < ARRAY_SIZE(qat_algs); i++) |
| 959 | qat_algs[i].cra_flags = CRYPTO_ALG_TYPE_AEAD | |
| 960 | CRYPTO_ALG_ASYNC; |
| 961 | return crypto_register_algs(qat_algs, ARRAY_SIZE(qat_algs)); |
| 962 | } |
| 963 | return 0; |
| 964 | } |
| 965 | |
| 966 | int qat_algs_unregister(void) |
| 967 | { |
| 968 | if (atomic_sub_return(1, &active_dev) == 0) |
| 969 | return crypto_unregister_algs(qat_algs, ARRAY_SIZE(qat_algs)); |
| 970 | return 0; |
| 971 | } |
| 972 | |
| 973 | int qat_algs_init(void) |
| 974 | { |
| 975 | atomic_set(&active_dev, 0); |
| 976 | crypto_get_default_rng(); |
| 977 | return 0; |
| 978 | } |
| 979 | |
| 980 | void qat_algs_exit(void) |
| 981 | { |
| 982 | crypto_put_default_rng(); |
| 983 | } |