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Diffstat (limited to '')
| -rw-r--r-- | drivers/crypto/caam/caamalg.c | 3661 |
1 files changed, 3661 insertions, 0 deletions
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c new file mode 100644 index 000000000..e156238b4 --- /dev/null +++ b/drivers/crypto/caam/caamalg.c @@ -0,0 +1,3661 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * caam - Freescale FSL CAAM support for crypto API + * + * Copyright 2008-2011 Freescale Semiconductor, Inc. + * Copyright 2016-2019 NXP + * + * Based on talitos crypto API driver. + * + * relationship of job descriptors to shared descriptors (SteveC Dec 10 2008): + * + * --------------- --------------- + * | JobDesc #1 |-------------------->| ShareDesc | + * | *(packet 1) | | (PDB) | + * --------------- |------------->| (hashKey) | + * . | | (cipherKey) | + * . | |-------->| (operation) | + * --------------- | | --------------- + * | JobDesc #2 |------| | + * | *(packet 2) | | + * --------------- | + * . | + * . | + * --------------- | + * | JobDesc #3 |------------ + * | *(packet 3) | + * --------------- + * + * The SharedDesc never changes for a connection unless rekeyed, but + * each packet will likely be in a different place. So all we need + * to know to process the packet is where the input is, where the + * output goes, and what context we want to process with. Context is + * in the SharedDesc, packet references in the JobDesc. + * + * So, a job desc looks like: + * + * --------------------- + * | Header | + * | ShareDesc Pointer | + * | SEQ_OUT_PTR | + * | (output buffer) | + * | (output length) | + * | SEQ_IN_PTR | + * | (input buffer) | + * | (input length) | + * --------------------- + */ + +#include "compat.h" + +#include "regs.h" +#include "intern.h" +#include "desc_constr.h" +#include "jr.h" +#include "error.h" +#include "sg_sw_sec4.h" +#include "key_gen.h" +#include "caamalg_desc.h" +#include <crypto/engine.h> +#include <crypto/xts.h> +#include <asm/unaligned.h> + +/* + * crypto alg + */ +#define CAAM_CRA_PRIORITY 3000 +/* max key is sum of AES_MAX_KEY_SIZE, max split key size */ +#define CAAM_MAX_KEY_SIZE (AES_MAX_KEY_SIZE + \ + CTR_RFC3686_NONCE_SIZE + \ + SHA512_DIGEST_SIZE * 2) + +#define AEAD_DESC_JOB_IO_LEN (DESC_JOB_IO_LEN + CAAM_CMD_SZ * 2) +#define GCM_DESC_JOB_IO_LEN (AEAD_DESC_JOB_IO_LEN + \ + CAAM_CMD_SZ * 4) +#define AUTHENC_DESC_JOB_IO_LEN (AEAD_DESC_JOB_IO_LEN + \ + CAAM_CMD_SZ * 5) + +#define CHACHAPOLY_DESC_JOB_IO_LEN (AEAD_DESC_JOB_IO_LEN + CAAM_CMD_SZ * 6) + +#define DESC_MAX_USED_BYTES (CAAM_DESC_BYTES_MAX - DESC_JOB_IO_LEN_MIN) +#define DESC_MAX_USED_LEN (DESC_MAX_USED_BYTES / CAAM_CMD_SZ) + +struct caam_alg_entry { + int class1_alg_type; + int class2_alg_type; + bool rfc3686; + bool geniv; + bool nodkp; +}; + +struct caam_aead_alg { + struct aead_alg aead; + struct caam_alg_entry caam; + bool registered; +}; + +struct caam_skcipher_alg { + struct skcipher_alg skcipher; + struct caam_alg_entry caam; + bool registered; +}; + +/* + * per-session context + */ +struct caam_ctx { + struct crypto_engine_ctx enginectx; + u32 sh_desc_enc[DESC_MAX_USED_LEN]; + u32 sh_desc_dec[DESC_MAX_USED_LEN]; + u8 key[CAAM_MAX_KEY_SIZE]; + dma_addr_t sh_desc_enc_dma; + dma_addr_t sh_desc_dec_dma; + dma_addr_t key_dma; + enum dma_data_direction dir; + struct device *jrdev; + struct alginfo adata; + struct alginfo cdata; + unsigned int authsize; + bool xts_key_fallback; + struct crypto_skcipher *fallback; +}; + +struct caam_skcipher_req_ctx { + struct skcipher_edesc *edesc; + struct skcipher_request fallback_req; +}; + +struct caam_aead_req_ctx { + struct aead_edesc *edesc; +}; + +static int aead_null_set_sh_desc(struct crypto_aead *aead) +{ + struct caam_ctx *ctx = crypto_aead_ctx(aead); + struct device *jrdev = ctx->jrdev; + struct caam_drv_private *ctrlpriv = dev_get_drvdata(jrdev->parent); + u32 *desc; + int rem_bytes = CAAM_DESC_BYTES_MAX - AEAD_DESC_JOB_IO_LEN - + ctx->adata.keylen_pad; + + /* + * Job Descriptor and Shared Descriptors + * must all fit into the 64-word Descriptor h/w Buffer + */ + if (rem_bytes >= DESC_AEAD_NULL_ENC_LEN) { + ctx->adata.key_inline = true; + ctx->adata.key_virt = ctx->key; + } else { + ctx->adata.key_inline = false; + ctx->adata.key_dma = ctx->key_dma; + } + + /* aead_encrypt shared descriptor */ + desc = ctx->sh_desc_enc; + cnstr_shdsc_aead_null_encap(desc, &ctx->adata, ctx->authsize, + ctrlpriv->era); + dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma, + desc_bytes(desc), ctx->dir); + + /* + * Job Descriptor and Shared Descriptors + * must all fit into the 64-word Descriptor h/w Buffer + */ + if (rem_bytes >= DESC_AEAD_NULL_DEC_LEN) { + ctx->adata.key_inline = true; + ctx->adata.key_virt = ctx->key; + } else { + ctx->adata.key_inline = false; + ctx->adata.key_dma = ctx->key_dma; + } + + /* aead_decrypt shared descriptor */ + desc = ctx->sh_desc_dec; + cnstr_shdsc_aead_null_decap(desc, &ctx->adata, ctx->authsize, + ctrlpriv->era); + dma_sync_single_for_device(jrdev, ctx->sh_desc_dec_dma, + desc_bytes(desc), ctx->dir); + + return 0; +} + +static int aead_set_sh_desc(struct crypto_aead *aead) +{ + struct caam_aead_alg *alg = container_of(crypto_aead_alg(aead), + struct caam_aead_alg, aead); + unsigned int ivsize = crypto_aead_ivsize(aead); + struct caam_ctx *ctx = crypto_aead_ctx(aead); + struct device *jrdev = ctx->jrdev; + struct caam_drv_private *ctrlpriv = dev_get_drvdata(jrdev->parent); + u32 ctx1_iv_off = 0; + u32 *desc, *nonce = NULL; + u32 inl_mask; + unsigned int data_len[2]; + const bool ctr_mode = ((ctx->cdata.algtype & OP_ALG_AAI_MASK) == + OP_ALG_AAI_CTR_MOD128); + const bool is_rfc3686 = alg->caam.rfc3686; + + if (!ctx->authsize) + return 0; + + /* NULL encryption / decryption */ + if (!ctx->cdata.keylen) + return aead_null_set_sh_desc(aead); + + /* + * AES-CTR needs to load IV in CONTEXT1 reg + * at an offset of 128bits (16bytes) + * CONTEXT1[255:128] = IV + */ + if (ctr_mode) + ctx1_iv_off = 16; + + /* + * RFC3686 specific: + * CONTEXT1[255:128] = {NONCE, IV, COUNTER} + */ + if (is_rfc3686) { + ctx1_iv_off = 16 + CTR_RFC3686_NONCE_SIZE; + nonce = (u32 *)((void *)ctx->key + ctx->adata.keylen_pad + + ctx->cdata.keylen - CTR_RFC3686_NONCE_SIZE); + } + + /* + * In case |user key| > |derived key|, using DKP<imm,imm> + * would result in invalid opcodes (last bytes of user key) in + * the resulting descriptor. Use DKP<ptr,imm> instead => both + * virtual and dma key addresses are needed. + */ + ctx->adata.key_virt = ctx->key; + ctx->adata.key_dma = ctx->key_dma; + + ctx->cdata.key_virt = ctx->key + ctx->adata.keylen_pad; + ctx->cdata.key_dma = ctx->key_dma + ctx->adata.keylen_pad; + + data_len[0] = ctx->adata.keylen_pad; + data_len[1] = ctx->cdata.keylen; + + if (alg->caam.geniv) + goto skip_enc; + + /* + * Job Descriptor and Shared Descriptors + * must all fit into the 64-word Descriptor h/w Buffer + */ + if (desc_inline_query(DESC_AEAD_ENC_LEN + + (is_rfc3686 ? DESC_AEAD_CTR_RFC3686_LEN : 0), + AUTHENC_DESC_JOB_IO_LEN, data_len, &inl_mask, + ARRAY_SIZE(data_len)) < 0) + return -EINVAL; + + ctx->adata.key_inline = !!(inl_mask & 1); + ctx->cdata.key_inline = !!(inl_mask & 2); + + /* aead_encrypt shared descriptor */ + desc = ctx->sh_desc_enc; + cnstr_shdsc_aead_encap(desc, &ctx->cdata, &ctx->adata, ivsize, + ctx->authsize, is_rfc3686, nonce, ctx1_iv_off, + false, ctrlpriv->era); + dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma, + desc_bytes(desc), ctx->dir); + +skip_enc: + /* + * Job Descriptor and Shared Descriptors + * must all fit into the 64-word Descriptor h/w Buffer + */ + if (desc_inline_query(DESC_AEAD_DEC_LEN + + (is_rfc3686 ? DESC_AEAD_CTR_RFC3686_LEN : 0), + AUTHENC_DESC_JOB_IO_LEN, data_len, &inl_mask, + ARRAY_SIZE(data_len)) < 0) + return -EINVAL; + + ctx->adata.key_inline = !!(inl_mask & 1); + ctx->cdata.key_inline = !!(inl_mask & 2); + + /* aead_decrypt shared descriptor */ + desc = ctx->sh_desc_dec; + cnstr_shdsc_aead_decap(desc, &ctx->cdata, &ctx->adata, ivsize, + ctx->authsize, alg->caam.geniv, is_rfc3686, + nonce, ctx1_iv_off, false, ctrlpriv->era); + dma_sync_single_for_device(jrdev, ctx->sh_desc_dec_dma, + desc_bytes(desc), ctx->dir); + + if (!alg->caam.geniv) + goto skip_givenc; + + /* + * Job Descriptor and Shared Descriptors + * must all fit into the 64-word Descriptor h/w Buffer + */ + if (desc_inline_query(DESC_AEAD_GIVENC_LEN + + (is_rfc3686 ? DESC_AEAD_CTR_RFC3686_LEN : 0), + AUTHENC_DESC_JOB_IO_LEN, data_len, &inl_mask, + ARRAY_SIZE(data_len)) < 0) + return -EINVAL; + + ctx->adata.key_inline = !!(inl_mask & 1); + ctx->cdata.key_inline = !!(inl_mask & 2); + + /* aead_givencrypt shared descriptor */ + desc = ctx->sh_desc_enc; + cnstr_shdsc_aead_givencap(desc, &ctx->cdata, &ctx->adata, ivsize, + ctx->authsize, is_rfc3686, nonce, + ctx1_iv_off, false, ctrlpriv->era); + dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma, + desc_bytes(desc), ctx->dir); + +skip_givenc: + return 0; +} + +static int aead_setauthsize(struct crypto_aead *authenc, + unsigned int authsize) +{ + struct caam_ctx *ctx = crypto_aead_ctx(authenc); + + ctx->authsize = authsize; + aead_set_sh_desc(authenc); + + return 0; +} + +static int gcm_set_sh_desc(struct crypto_aead *aead) +{ + struct caam_ctx *ctx = crypto_aead_ctx(aead); + struct device *jrdev = ctx->jrdev; + unsigned int ivsize = crypto_aead_ivsize(aead); + u32 *desc; + int rem_bytes = CAAM_DESC_BYTES_MAX - GCM_DESC_JOB_IO_LEN - + ctx->cdata.keylen; + + if (!ctx->cdata.keylen || !ctx->authsize) + return 0; + + /* + * AES GCM encrypt shared descriptor + * Job Descriptor and Shared Descriptor + * must fit into the 64-word Descriptor h/w Buffer + */ + if (rem_bytes >= DESC_GCM_ENC_LEN) { + ctx->cdata.key_inline = true; + ctx->cdata.key_virt = ctx->key; + } else { + ctx->cdata.key_inline = false; + ctx->cdata.key_dma = ctx->key_dma; + } + + desc = ctx->sh_desc_enc; + cnstr_shdsc_gcm_encap(desc, &ctx->cdata, ivsize, ctx->authsize, false); + dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma, + desc_bytes(desc), ctx->dir); + + /* + * Job Descriptor and Shared Descriptors + * must all fit into the 64-word Descriptor h/w Buffer + */ + if (rem_bytes >= DESC_GCM_DEC_LEN) { + ctx->cdata.key_inline = true; + ctx->cdata.key_virt = ctx->key; + } else { + ctx->cdata.key_inline = false; + ctx->cdata.key_dma = ctx->key_dma; + } + + desc = ctx->sh_desc_dec; + cnstr_shdsc_gcm_decap(desc, &ctx->cdata, ivsize, ctx->authsize, false); + dma_sync_single_for_device(jrdev, ctx->sh_desc_dec_dma, + desc_bytes(desc), ctx->dir); + + return 0; +} + +static int gcm_setauthsize(struct crypto_aead *authenc, unsigned int authsize) +{ + struct caam_ctx *ctx = crypto_aead_ctx(authenc); + int err; + + err = crypto_gcm_check_authsize(authsize); + if (err) + return err; + + ctx->authsize = authsize; + gcm_set_sh_desc(authenc); + + return 0; +} + +static int rfc4106_set_sh_desc(struct crypto_aead *aead) +{ + struct caam_ctx *ctx = crypto_aead_ctx(aead); + struct device *jrdev = ctx->jrdev; + unsigned int ivsize = crypto_aead_ivsize(aead); + u32 *desc; + int rem_bytes = CAAM_DESC_BYTES_MAX - GCM_DESC_JOB_IO_LEN - + ctx->cdata.keylen; + + if (!ctx->cdata.keylen || !ctx->authsize) + return 0; + + /* + * RFC4106 encrypt shared descriptor + * Job Descriptor and Shared Descriptor + * must fit into the 64-word Descriptor h/w Buffer + */ + if (rem_bytes >= DESC_RFC4106_ENC_LEN) { + ctx->cdata.key_inline = true; + ctx->cdata.key_virt = ctx->key; + } else { + ctx->cdata.key_inline = false; + ctx->cdata.key_dma = ctx->key_dma; + } + + desc = ctx->sh_desc_enc; + cnstr_shdsc_rfc4106_encap(desc, &ctx->cdata, ivsize, ctx->authsize, + false); + dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma, + desc_bytes(desc), ctx->dir); + + /* + * Job Descriptor and Shared Descriptors + * must all fit into the 64-word Descriptor h/w Buffer + */ + if (rem_bytes >= DESC_RFC4106_DEC_LEN) { + ctx->cdata.key_inline = true; + ctx->cdata.key_virt = ctx->key; + } else { + ctx->cdata.key_inline = false; + ctx->cdata.key_dma = ctx->key_dma; + } + + desc = ctx->sh_desc_dec; + cnstr_shdsc_rfc4106_decap(desc, &ctx->cdata, ivsize, ctx->authsize, + false); + dma_sync_single_for_device(jrdev, ctx->sh_desc_dec_dma, + desc_bytes(desc), ctx->dir); + + return 0; +} + +static int rfc4106_setauthsize(struct crypto_aead *authenc, + unsigned int authsize) +{ + struct caam_ctx *ctx = crypto_aead_ctx(authenc); + int err; + + err = crypto_rfc4106_check_authsize(authsize); + if (err) + return err; + + ctx->authsize = authsize; + rfc4106_set_sh_desc(authenc); + + return 0; +} + +static int rfc4543_set_sh_desc(struct crypto_aead *aead) +{ + struct caam_ctx *ctx = crypto_aead_ctx(aead); + struct device *jrdev = ctx->jrdev; + unsigned int ivsize = crypto_aead_ivsize(aead); + u32 *desc; + int rem_bytes = CAAM_DESC_BYTES_MAX - GCM_DESC_JOB_IO_LEN - + ctx->cdata.keylen; + + if (!ctx->cdata.keylen || !ctx->authsize) + return 0; + + /* + * RFC4543 encrypt shared descriptor + * Job Descriptor and Shared Descriptor + * must fit into the 64-word Descriptor h/w Buffer + */ + if (rem_bytes >= DESC_RFC4543_ENC_LEN) { + ctx->cdata.key_inline = true; + ctx->cdata.key_virt = ctx->key; + } else { + ctx->cdata.key_inline = false; + ctx->cdata.key_dma = ctx->key_dma; + } + + desc = ctx->sh_desc_enc; + cnstr_shdsc_rfc4543_encap(desc, &ctx->cdata, ivsize, ctx->authsize, + false); + dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma, + desc_bytes(desc), ctx->dir); + + /* + * Job Descriptor and Shared Descriptors + * must all fit into the 64-word Descriptor h/w Buffer + */ + if (rem_bytes >= DESC_RFC4543_DEC_LEN) { + ctx->cdata.key_inline = true; + ctx->cdata.key_virt = ctx->key; + } else { + ctx->cdata.key_inline = false; + ctx->cdata.key_dma = ctx->key_dma; + } + + desc = ctx->sh_desc_dec; + cnstr_shdsc_rfc4543_decap(desc, &ctx->cdata, ivsize, ctx->authsize, + false); + dma_sync_single_for_device(jrdev, ctx->sh_desc_dec_dma, + desc_bytes(desc), ctx->dir); + + return 0; +} + +static int rfc4543_setauthsize(struct crypto_aead *authenc, + unsigned int authsize) +{ + struct caam_ctx *ctx = crypto_aead_ctx(authenc); + + if (authsize != 16) + return -EINVAL; + + ctx->authsize = authsize; + rfc4543_set_sh_desc(authenc); + + return 0; +} + +static int chachapoly_set_sh_desc(struct crypto_aead *aead) +{ + struct caam_ctx *ctx = crypto_aead_ctx(aead); + struct device *jrdev = ctx->jrdev; + unsigned int ivsize = crypto_aead_ivsize(aead); + u32 *desc; + + if (!ctx->cdata.keylen || !ctx->authsize) + return 0; + + desc = ctx->sh_desc_enc; + cnstr_shdsc_chachapoly(desc, &ctx->cdata, &ctx->adata, ivsize, + ctx->authsize, true, false); + dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma, + desc_bytes(desc), ctx->dir); + + desc = ctx->sh_desc_dec; + cnstr_shdsc_chachapoly(desc, &ctx->cdata, &ctx->adata, ivsize, + ctx->authsize, false, false); + dma_sync_single_for_device(jrdev, ctx->sh_desc_dec_dma, + desc_bytes(desc), ctx->dir); + + return 0; +} + +static int chachapoly_setauthsize(struct crypto_aead *aead, + unsigned int authsize) +{ + struct caam_ctx *ctx = crypto_aead_ctx(aead); + + if (authsize != POLY1305_DIGEST_SIZE) + return -EINVAL; + + ctx->authsize = authsize; + return chachapoly_set_sh_desc(aead); +} + +static int chachapoly_setkey(struct crypto_aead *aead, const u8 *key, + unsigned int keylen) +{ + struct caam_ctx *ctx = crypto_aead_ctx(aead); + unsigned int ivsize = crypto_aead_ivsize(aead); + unsigned int saltlen = CHACHAPOLY_IV_SIZE - ivsize; + + if (keylen != CHACHA_KEY_SIZE + saltlen) + return -EINVAL; + + memcpy(ctx->key, key, keylen); + ctx->cdata.key_virt = ctx->key; + ctx->cdata.keylen = keylen - saltlen; + + return chachapoly_set_sh_desc(aead); +} + +static int aead_setkey(struct crypto_aead *aead, + const u8 *key, unsigned int keylen) +{ + struct caam_ctx *ctx = crypto_aead_ctx(aead); + struct device *jrdev = ctx->jrdev; + struct caam_drv_private *ctrlpriv = dev_get_drvdata(jrdev->parent); + struct crypto_authenc_keys keys; + int ret = 0; + + if (crypto_authenc_extractkeys(&keys, key, keylen) != 0) + goto badkey; + + dev_dbg(jrdev, "keylen %d enckeylen %d authkeylen %d\n", + keys.authkeylen + keys.enckeylen, keys.enckeylen, + keys.authkeylen); + print_hex_dump_debug("key in @"__stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1); + + /* + * If DKP is supported, use it in the shared descriptor to generate + * the split key. + */ + if (ctrlpriv->era >= 6) { + ctx->adata.keylen = keys.authkeylen; + ctx->adata.keylen_pad = split_key_len(ctx->adata.algtype & + OP_ALG_ALGSEL_MASK); + + if (ctx->adata.keylen_pad + keys.enckeylen > CAAM_MAX_KEY_SIZE) + goto badkey; + + memcpy(ctx->key, keys.authkey, keys.authkeylen); + memcpy(ctx->key + ctx->adata.keylen_pad, keys.enckey, + keys.enckeylen); + dma_sync_single_for_device(jrdev, ctx->key_dma, + ctx->adata.keylen_pad + + keys.enckeylen, ctx->dir); + goto skip_split_key; + } + + ret = gen_split_key(ctx->jrdev, ctx->key, &ctx->adata, keys.authkey, + keys.authkeylen, CAAM_MAX_KEY_SIZE - + keys.enckeylen); + if (ret) { + goto badkey; + } + + /* postpend encryption key to auth split key */ + memcpy(ctx->key + ctx->adata.keylen_pad, keys.enckey, keys.enckeylen); + dma_sync_single_for_device(jrdev, ctx->key_dma, ctx->adata.keylen_pad + + keys.enckeylen, ctx->dir); + + print_hex_dump_debug("ctx.key@"__stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, ctx->key, + ctx->adata.keylen_pad + keys.enckeylen, 1); + +skip_split_key: + ctx->cdata.keylen = keys.enckeylen; + memzero_explicit(&keys, sizeof(keys)); + return aead_set_sh_desc(aead); +badkey: + memzero_explicit(&keys, sizeof(keys)); + return -EINVAL; +} + +static int des3_aead_setkey(struct crypto_aead *aead, const u8 *key, + unsigned int keylen) +{ + struct crypto_authenc_keys keys; + int err; + + err = crypto_authenc_extractkeys(&keys, key, keylen); + if (unlikely(err)) + return err; + + err = verify_aead_des3_key(aead, keys.enckey, keys.enckeylen) ?: + aead_setkey(aead, key, keylen); + + memzero_explicit(&keys, sizeof(keys)); + return err; +} + +static int gcm_setkey(struct crypto_aead *aead, + const u8 *key, unsigned int keylen) +{ + struct caam_ctx *ctx = crypto_aead_ctx(aead); + struct device *jrdev = ctx->jrdev; + int err; + + err = aes_check_keylen(keylen); + if (err) + return err; + + print_hex_dump_debug("key in @"__stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1); + + memcpy(ctx->key, key, keylen); + dma_sync_single_for_device(jrdev, ctx->key_dma, keylen, ctx->dir); + ctx->cdata.keylen = keylen; + + return gcm_set_sh_desc(aead); +} + +static int rfc4106_setkey(struct crypto_aead *aead, + const u8 *key, unsigned int keylen) +{ + struct caam_ctx *ctx = crypto_aead_ctx(aead); + struct device *jrdev = ctx->jrdev; + int err; + + err = aes_check_keylen(keylen - 4); + if (err) + return err; + + print_hex_dump_debug("key in @"__stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1); + + memcpy(ctx->key, key, keylen); + + /* + * The last four bytes of the key material are used as the salt value + * in the nonce. Update the AES key length. + */ + ctx->cdata.keylen = keylen - 4; + dma_sync_single_for_device(jrdev, ctx->key_dma, ctx->cdata.keylen, + ctx->dir); + return rfc4106_set_sh_desc(aead); +} + +static int rfc4543_setkey(struct crypto_aead *aead, + const u8 *key, unsigned int keylen) +{ + struct caam_ctx *ctx = crypto_aead_ctx(aead); + struct device *jrdev = ctx->jrdev; + int err; + + err = aes_check_keylen(keylen - 4); + if (err) + return err; + + print_hex_dump_debug("key in @"__stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1); + + memcpy(ctx->key, key, keylen); + + /* + * The last four bytes of the key material are used as the salt value + * in the nonce. Update the AES key length. + */ + ctx->cdata.keylen = keylen - 4; + dma_sync_single_for_device(jrdev, ctx->key_dma, ctx->cdata.keylen, + ctx->dir); + return rfc4543_set_sh_desc(aead); +} + +static int skcipher_setkey(struct crypto_skcipher *skcipher, const u8 *key, + unsigned int keylen, const u32 ctx1_iv_off) +{ + struct caam_ctx *ctx = crypto_skcipher_ctx(skcipher); + struct caam_skcipher_alg *alg = + container_of(crypto_skcipher_alg(skcipher), typeof(*alg), + skcipher); + struct device *jrdev = ctx->jrdev; + unsigned int ivsize = crypto_skcipher_ivsize(skcipher); + u32 *desc; + const bool is_rfc3686 = alg->caam.rfc3686; + + print_hex_dump_debug("key in @"__stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1); + + ctx->cdata.keylen = keylen; + ctx->cdata.key_virt = key; + ctx->cdata.key_inline = true; + + /* skcipher_encrypt shared descriptor */ + desc = ctx->sh_desc_enc; + cnstr_shdsc_skcipher_encap(desc, &ctx->cdata, ivsize, is_rfc3686, + ctx1_iv_off); + dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma, + desc_bytes(desc), ctx->dir); + + /* skcipher_decrypt shared descriptor */ + desc = ctx->sh_desc_dec; + cnstr_shdsc_skcipher_decap(desc, &ctx->cdata, ivsize, is_rfc3686, + ctx1_iv_off); + dma_sync_single_for_device(jrdev, ctx->sh_desc_dec_dma, + desc_bytes(desc), ctx->dir); + + return 0; +} + +static int aes_skcipher_setkey(struct crypto_skcipher *skcipher, + const u8 *key, unsigned int keylen) +{ + int err; + + err = aes_check_keylen(keylen); + if (err) + return err; + + return skcipher_setkey(skcipher, key, keylen, 0); +} + +static int rfc3686_skcipher_setkey(struct crypto_skcipher *skcipher, + const u8 *key, unsigned int keylen) +{ + u32 ctx1_iv_off; + int err; + + /* + * RFC3686 specific: + * | CONTEXT1[255:128] = {NONCE, IV, COUNTER} + * | *key = {KEY, NONCE} + */ + ctx1_iv_off = 16 + CTR_RFC3686_NONCE_SIZE; + keylen -= CTR_RFC3686_NONCE_SIZE; + + err = aes_check_keylen(keylen); + if (err) + return err; + + return skcipher_setkey(skcipher, key, keylen, ctx1_iv_off); +} + +static int ctr_skcipher_setkey(struct crypto_skcipher *skcipher, + const u8 *key, unsigned int keylen) +{ + u32 ctx1_iv_off; + int err; + + /* + * AES-CTR needs to load IV in CONTEXT1 reg + * at an offset of 128bits (16bytes) + * CONTEXT1[255:128] = IV + */ + ctx1_iv_off = 16; + + err = aes_check_keylen(keylen); + if (err) + return err; + + return skcipher_setkey(skcipher, key, keylen, ctx1_iv_off); +} + +static int des_skcipher_setkey(struct crypto_skcipher *skcipher, + const u8 *key, unsigned int keylen) +{ + return verify_skcipher_des_key(skcipher, key) ?: + skcipher_setkey(skcipher, key, keylen, 0); +} + +static int des3_skcipher_setkey(struct crypto_skcipher *skcipher, + const u8 *key, unsigned int keylen) +{ + return verify_skcipher_des3_key(skcipher, key) ?: + skcipher_setkey(skcipher, key, keylen, 0); +} + +static int xts_skcipher_setkey(struct crypto_skcipher *skcipher, const u8 *key, + unsigned int keylen) +{ + struct caam_ctx *ctx = crypto_skcipher_ctx(skcipher); + struct device *jrdev = ctx->jrdev; + struct caam_drv_private *ctrlpriv = dev_get_drvdata(jrdev->parent); + u32 *desc; + int err; + + err = xts_verify_key(skcipher, key, keylen); + if (err) { + dev_dbg(jrdev, "key size mismatch\n"); + return err; + } + + if (keylen != 2 * AES_KEYSIZE_128 && keylen != 2 * AES_KEYSIZE_256) + ctx->xts_key_fallback = true; + + if (ctrlpriv->era <= 8 || ctx->xts_key_fallback) { + err = crypto_skcipher_setkey(ctx->fallback, key, keylen); + if (err) + return err; + } + + ctx->cdata.keylen = keylen; + ctx->cdata.key_virt = key; + ctx->cdata.key_inline = true; + + /* xts_skcipher_encrypt shared descriptor */ + desc = ctx->sh_desc_enc; + cnstr_shdsc_xts_skcipher_encap(desc, &ctx->cdata); + dma_sync_single_for_device(jrdev, ctx->sh_desc_enc_dma, + desc_bytes(desc), ctx->dir); + + /* xts_skcipher_decrypt shared descriptor */ + desc = ctx->sh_desc_dec; + cnstr_shdsc_xts_skcipher_decap(desc, &ctx->cdata); + dma_sync_single_for_device(jrdev, ctx->sh_desc_dec_dma, + desc_bytes(desc), ctx->dir); + + return 0; +} + +/* + * aead_edesc - s/w-extended aead descriptor + * @src_nents: number of segments in input s/w scatterlist + * @dst_nents: number of segments in output s/w scatterlist + * @mapped_src_nents: number of segments in input h/w link table + * @mapped_dst_nents: number of segments in output h/w link table + * @sec4_sg_bytes: length of dma mapped sec4_sg space + * @bklog: stored to determine if the request needs backlog + * @sec4_sg_dma: bus physical mapped address of h/w link table + * @sec4_sg: pointer to h/w link table + * @hw_desc: the h/w job descriptor followed by any referenced link tables + */ +struct aead_edesc { + int src_nents; + int dst_nents; + int mapped_src_nents; + int mapped_dst_nents; + int sec4_sg_bytes; + bool bklog; + dma_addr_t sec4_sg_dma; + struct sec4_sg_entry *sec4_sg; + u32 hw_desc[]; +}; + +/* + * skcipher_edesc - s/w-extended skcipher descriptor + * @src_nents: number of segments in input s/w scatterlist + * @dst_nents: number of segments in output s/w scatterlist + * @mapped_src_nents: number of segments in input h/w link table + * @mapped_dst_nents: number of segments in output h/w link table + * @iv_dma: dma address of iv for checking continuity and link table + * @sec4_sg_bytes: length of dma mapped sec4_sg space + * @bklog: stored to determine if the request needs backlog + * @sec4_sg_dma: bus physical mapped address of h/w link table + * @sec4_sg: pointer to h/w link table + * @hw_desc: the h/w job descriptor followed by any referenced link tables + * and IV + */ +struct skcipher_edesc { + int src_nents; + int dst_nents; + int mapped_src_nents; + int mapped_dst_nents; + dma_addr_t iv_dma; + int sec4_sg_bytes; + bool bklog; + dma_addr_t sec4_sg_dma; + struct sec4_sg_entry *sec4_sg; + u32 hw_desc[]; +}; + +static void caam_unmap(struct device *dev, struct scatterlist *src, + struct scatterlist *dst, int src_nents, + int dst_nents, + dma_addr_t iv_dma, int ivsize, dma_addr_t sec4_sg_dma, + int sec4_sg_bytes) +{ + if (dst != src) { + if (src_nents) + dma_unmap_sg(dev, src, src_nents, DMA_TO_DEVICE); + if (dst_nents) + dma_unmap_sg(dev, dst, dst_nents, DMA_FROM_DEVICE); + } else { + dma_unmap_sg(dev, src, src_nents, DMA_BIDIRECTIONAL); + } + + if (iv_dma) + dma_unmap_single(dev, iv_dma, ivsize, DMA_BIDIRECTIONAL); + if (sec4_sg_bytes) + dma_unmap_single(dev, sec4_sg_dma, sec4_sg_bytes, + DMA_TO_DEVICE); +} + +static void aead_unmap(struct device *dev, + struct aead_edesc *edesc, + struct aead_request *req) +{ + caam_unmap(dev, req->src, req->dst, + edesc->src_nents, edesc->dst_nents, 0, 0, + edesc->sec4_sg_dma, edesc->sec4_sg_bytes); +} + +static void skcipher_unmap(struct device *dev, struct skcipher_edesc *edesc, + struct skcipher_request *req) +{ + struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req); + int ivsize = crypto_skcipher_ivsize(skcipher); + + caam_unmap(dev, req->src, req->dst, + edesc->src_nents, edesc->dst_nents, + edesc->iv_dma, ivsize, + edesc->sec4_sg_dma, edesc->sec4_sg_bytes); +} + +static void aead_crypt_done(struct device *jrdev, u32 *desc, u32 err, + void *context) +{ + struct aead_request *req = context; + struct caam_aead_req_ctx *rctx = aead_request_ctx(req); + struct caam_drv_private_jr *jrp = dev_get_drvdata(jrdev); + struct aead_edesc *edesc; + int ecode = 0; + bool has_bklog; + + dev_dbg(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err); + + edesc = rctx->edesc; + has_bklog = edesc->bklog; + + if (err) + ecode = caam_jr_strstatus(jrdev, err); + + aead_unmap(jrdev, edesc, req); + + kfree(edesc); + + /* + * If no backlog flag, the completion of the request is done + * by CAAM, not crypto engine. + */ + if (!has_bklog) + aead_request_complete(req, ecode); + else + crypto_finalize_aead_request(jrp->engine, req, ecode); +} + +static void skcipher_crypt_done(struct device *jrdev, u32 *desc, u32 err, + void *context) +{ + struct skcipher_request *req = context; + struct skcipher_edesc *edesc; + struct caam_skcipher_req_ctx *rctx = skcipher_request_ctx(req); + struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req); + struct caam_drv_private_jr *jrp = dev_get_drvdata(jrdev); + int ivsize = crypto_skcipher_ivsize(skcipher); + int ecode = 0; + bool has_bklog; + + dev_dbg(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err); + + edesc = rctx->edesc; + has_bklog = edesc->bklog; + if (err) + ecode = caam_jr_strstatus(jrdev, err); + + skcipher_unmap(jrdev, edesc, req); + + /* + * The crypto API expects us to set the IV (req->iv) to the last + * ciphertext block (CBC mode) or last counter (CTR mode). + * This is used e.g. by the CTS mode. + */ + if (ivsize && !ecode) { + memcpy(req->iv, (u8 *)edesc->sec4_sg + edesc->sec4_sg_bytes, + ivsize); + + print_hex_dump_debug("dstiv @" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, req->iv, + ivsize, 1); + } + + caam_dump_sg("dst @" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, req->dst, + edesc->dst_nents > 1 ? 100 : req->cryptlen, 1); + + kfree(edesc); + + /* + * If no backlog flag, the completion of the request is done + * by CAAM, not crypto engine. + */ + if (!has_bklog) + skcipher_request_complete(req, ecode); + else + crypto_finalize_skcipher_request(jrp->engine, req, ecode); +} + +/* + * Fill in aead job descriptor + */ +static void init_aead_job(struct aead_request *req, + struct aead_edesc *edesc, + bool all_contig, bool encrypt) +{ + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct caam_ctx *ctx = crypto_aead_ctx(aead); + int authsize = ctx->authsize; + u32 *desc = edesc->hw_desc; + u32 out_options, in_options; + dma_addr_t dst_dma, src_dma; + int len, sec4_sg_index = 0; + dma_addr_t ptr; + u32 *sh_desc; + + sh_desc = encrypt ? ctx->sh_desc_enc : ctx->sh_desc_dec; + ptr = encrypt ? ctx->sh_desc_enc_dma : ctx->sh_desc_dec_dma; + + len = desc_len(sh_desc); + init_job_desc_shared(desc, ptr, len, HDR_SHARE_DEFER | HDR_REVERSE); + + if (all_contig) { + src_dma = edesc->mapped_src_nents ? sg_dma_address(req->src) : + 0; + in_options = 0; + } else { + src_dma = edesc->sec4_sg_dma; + sec4_sg_index += edesc->mapped_src_nents; + in_options = LDST_SGF; + } + + append_seq_in_ptr(desc, src_dma, req->assoclen + req->cryptlen, + in_options); + + dst_dma = src_dma; + out_options = in_options; + + if (unlikely(req->src != req->dst)) { + if (!edesc->mapped_dst_nents) { + dst_dma = 0; + out_options = 0; + } else if (edesc->mapped_dst_nents == 1) { + dst_dma = sg_dma_address(req->dst); + out_options = 0; + } else { + dst_dma = edesc->sec4_sg_dma + + sec4_sg_index * + sizeof(struct sec4_sg_entry); + out_options = LDST_SGF; + } + } + + if (encrypt) + append_seq_out_ptr(desc, dst_dma, + req->assoclen + req->cryptlen + authsize, + out_options); + else + append_seq_out_ptr(desc, dst_dma, + req->assoclen + req->cryptlen - authsize, + out_options); +} + +static void init_gcm_job(struct aead_request *req, + struct aead_edesc *edesc, + bool all_contig, bool encrypt) +{ + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct caam_ctx *ctx = crypto_aead_ctx(aead); + unsigned int ivsize = crypto_aead_ivsize(aead); + u32 *desc = edesc->hw_desc; + bool generic_gcm = (ivsize == GCM_AES_IV_SIZE); + unsigned int last; + + init_aead_job(req, edesc, all_contig, encrypt); + append_math_add_imm_u32(desc, REG3, ZERO, IMM, req->assoclen); + + /* BUG This should not be specific to generic GCM. */ + last = 0; + if (encrypt && generic_gcm && !(req->assoclen + req->cryptlen)) + last = FIFOLD_TYPE_LAST1; + + /* Read GCM IV */ + append_cmd(desc, CMD_FIFO_LOAD | FIFOLD_CLASS_CLASS1 | IMMEDIATE | + FIFOLD_TYPE_IV | FIFOLD_TYPE_FLUSH1 | GCM_AES_IV_SIZE | last); + /* Append Salt */ + if (!generic_gcm) + append_data(desc, ctx->key + ctx->cdata.keylen, 4); + /* Append IV */ + append_data(desc, req->iv, ivsize); + /* End of blank commands */ +} + +static void init_chachapoly_job(struct aead_request *req, + struct aead_edesc *edesc, bool all_contig, + bool encrypt) +{ + struct crypto_aead *aead = crypto_aead_reqtfm(req); + unsigned int ivsize = crypto_aead_ivsize(aead); + unsigned int assoclen = req->assoclen; + u32 *desc = edesc->hw_desc; + u32 ctx_iv_off = 4; + + init_aead_job(req, edesc, all_contig, encrypt); + + if (ivsize != CHACHAPOLY_IV_SIZE) { + /* IPsec specific: CONTEXT1[223:128] = {NONCE, IV} */ + ctx_iv_off += 4; + + /* + * The associated data comes already with the IV but we need + * to skip it when we authenticate or encrypt... + */ + assoclen -= ivsize; + } + + append_math_add_imm_u32(desc, REG3, ZERO, IMM, assoclen); + + /* + * For IPsec load the IV further in the same register. + * For RFC7539 simply load the 12 bytes nonce in a single operation + */ + append_load_as_imm(desc, req->iv, ivsize, LDST_CLASS_1_CCB | + LDST_SRCDST_BYTE_CONTEXT | + ctx_iv_off << LDST_OFFSET_SHIFT); +} + +static void init_authenc_job(struct aead_request *req, + struct aead_edesc *edesc, + bool all_contig, bool encrypt) +{ + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct caam_aead_alg *alg = container_of(crypto_aead_alg(aead), + struct caam_aead_alg, aead); + unsigned int ivsize = crypto_aead_ivsize(aead); + struct caam_ctx *ctx = crypto_aead_ctx(aead); + struct caam_drv_private *ctrlpriv = dev_get_drvdata(ctx->jrdev->parent); + const bool ctr_mode = ((ctx->cdata.algtype & OP_ALG_AAI_MASK) == + OP_ALG_AAI_CTR_MOD128); + const bool is_rfc3686 = alg->caam.rfc3686; + u32 *desc = edesc->hw_desc; + u32 ivoffset = 0; + + /* + * AES-CTR needs to load IV in CONTEXT1 reg + * at an offset of 128bits (16bytes) + * CONTEXT1[255:128] = IV + */ + if (ctr_mode) + ivoffset = 16; + + /* + * RFC3686 specific: + * CONTEXT1[255:128] = {NONCE, IV, COUNTER} + */ + if (is_rfc3686) + ivoffset = 16 + CTR_RFC3686_NONCE_SIZE; + + init_aead_job(req, edesc, all_contig, encrypt); + + /* + * {REG3, DPOVRD} = assoclen, depending on whether MATH command supports + * having DPOVRD as destination. + */ + if (ctrlpriv->era < 3) + append_math_add_imm_u32(desc, REG3, ZERO, IMM, req->assoclen); + else + append_math_add_imm_u32(desc, DPOVRD, ZERO, IMM, req->assoclen); + + if (ivsize && ((is_rfc3686 && encrypt) || !alg->caam.geniv)) + append_load_as_imm(desc, req->iv, ivsize, + LDST_CLASS_1_CCB | + LDST_SRCDST_BYTE_CONTEXT | + (ivoffset << LDST_OFFSET_SHIFT)); +} + +/* + * Fill in skcipher job descriptor + */ +static void init_skcipher_job(struct skcipher_request *req, + struct skcipher_edesc *edesc, + const bool encrypt) +{ + struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req); + struct caam_ctx *ctx = crypto_skcipher_ctx(skcipher); + struct device *jrdev = ctx->jrdev; + int ivsize = crypto_skcipher_ivsize(skcipher); + u32 *desc = edesc->hw_desc; + u32 *sh_desc; + u32 in_options = 0, out_options = 0; + dma_addr_t src_dma, dst_dma, ptr; + int len, sec4_sg_index = 0; + + print_hex_dump_debug("presciv@"__stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, req->iv, ivsize, 1); + dev_dbg(jrdev, "asked=%d, cryptlen%d\n", + (int)edesc->src_nents > 1 ? 100 : req->cryptlen, req->cryptlen); + + caam_dump_sg("src @" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, req->src, + edesc->src_nents > 1 ? 100 : req->cryptlen, 1); + + sh_desc = encrypt ? ctx->sh_desc_enc : ctx->sh_desc_dec; + ptr = encrypt ? ctx->sh_desc_enc_dma : ctx->sh_desc_dec_dma; + + len = desc_len(sh_desc); + init_job_desc_shared(desc, ptr, len, HDR_SHARE_DEFER | HDR_REVERSE); + + if (ivsize || edesc->mapped_src_nents > 1) { + src_dma = edesc->sec4_sg_dma; + sec4_sg_index = edesc->mapped_src_nents + !!ivsize; + in_options = LDST_SGF; + } else { + src_dma = sg_dma_address(req->src); + } + + append_seq_in_ptr(desc, src_dma, req->cryptlen + ivsize, in_options); + + if (likely(req->src == req->dst)) { + dst_dma = src_dma + !!ivsize * sizeof(struct sec4_sg_entry); + out_options = in_options; + } else if (!ivsize && edesc->mapped_dst_nents == 1) { + dst_dma = sg_dma_address(req->dst); + } else { + dst_dma = edesc->sec4_sg_dma + sec4_sg_index * + sizeof(struct sec4_sg_entry); + out_options = LDST_SGF; + } + + append_seq_out_ptr(desc, dst_dma, req->cryptlen + ivsize, out_options); +} + +/* + * allocate and map the aead extended descriptor + */ +static struct aead_edesc *aead_edesc_alloc(struct aead_request *req, + int desc_bytes, bool *all_contig_ptr, + bool encrypt) +{ + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct caam_ctx *ctx = crypto_aead_ctx(aead); + struct device *jrdev = ctx->jrdev; + struct caam_aead_req_ctx *rctx = aead_request_ctx(req); + gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? + GFP_KERNEL : GFP_ATOMIC; + int src_nents, mapped_src_nents, dst_nents = 0, mapped_dst_nents = 0; + int src_len, dst_len = 0; + struct aead_edesc *edesc; + int sec4_sg_index, sec4_sg_len, sec4_sg_bytes; + unsigned int authsize = ctx->authsize; + + if (unlikely(req->dst != req->src)) { + src_len = req->assoclen + req->cryptlen; + dst_len = src_len + (encrypt ? authsize : (-authsize)); + + src_nents = sg_nents_for_len(req->src, src_len); + if (unlikely(src_nents < 0)) { + dev_err(jrdev, "Insufficient bytes (%d) in src S/G\n", + src_len); + return ERR_PTR(src_nents); + } + + dst_nents = sg_nents_for_len(req->dst, dst_len); + if (unlikely(dst_nents < 0)) { + dev_err(jrdev, "Insufficient bytes (%d) in dst S/G\n", + dst_len); + return ERR_PTR(dst_nents); + } + } else { + src_len = req->assoclen + req->cryptlen + + (encrypt ? authsize : 0); + + src_nents = sg_nents_for_len(req->src, src_len); + if (unlikely(src_nents < 0)) { + dev_err(jrdev, "Insufficient bytes (%d) in src S/G\n", + src_len); + return ERR_PTR(src_nents); + } + } + + if (likely(req->src == req->dst)) { + mapped_src_nents = dma_map_sg(jrdev, req->src, src_nents, + DMA_BIDIRECTIONAL); + if (unlikely(!mapped_src_nents)) { + dev_err(jrdev, "unable to map source\n"); + return ERR_PTR(-ENOMEM); + } + } else { + /* Cover also the case of null (zero length) input data */ + if (src_nents) { + mapped_src_nents = dma_map_sg(jrdev, req->src, + src_nents, DMA_TO_DEVICE); + if (unlikely(!mapped_src_nents)) { + dev_err(jrdev, "unable to map source\n"); + return ERR_PTR(-ENOMEM); + } + } else { + mapped_src_nents = 0; + } + + /* Cover also the case of null (zero length) output data */ + if (dst_nents) { + mapped_dst_nents = dma_map_sg(jrdev, req->dst, + dst_nents, + DMA_FROM_DEVICE); + if (unlikely(!mapped_dst_nents)) { + dev_err(jrdev, "unable to map destination\n"); + dma_unmap_sg(jrdev, req->src, src_nents, + DMA_TO_DEVICE); + return ERR_PTR(-ENOMEM); + } + } else { + mapped_dst_nents = 0; + } + } + + /* + * HW reads 4 S/G entries at a time; make sure the reads don't go beyond + * the end of the table by allocating more S/G entries. + */ + sec4_sg_len = mapped_src_nents > 1 ? mapped_src_nents : 0; + if (mapped_dst_nents > 1) + sec4_sg_len += pad_sg_nents(mapped_dst_nents); + else + sec4_sg_len = pad_sg_nents(sec4_sg_len); + + sec4_sg_bytes = sec4_sg_len * sizeof(struct sec4_sg_entry); + + /* allocate space for base edesc and hw desc commands, link tables */ + edesc = kzalloc(sizeof(*edesc) + desc_bytes + sec4_sg_bytes, + GFP_DMA | flags); + if (!edesc) { + caam_unmap(jrdev, req->src, req->dst, src_nents, dst_nents, 0, + 0, 0, 0); + return ERR_PTR(-ENOMEM); + } + + edesc->src_nents = src_nents; + edesc->dst_nents = dst_nents; + edesc->mapped_src_nents = mapped_src_nents; + edesc->mapped_dst_nents = mapped_dst_nents; + edesc->sec4_sg = (void *)edesc + sizeof(struct aead_edesc) + + desc_bytes; + + rctx->edesc = edesc; + + *all_contig_ptr = !(mapped_src_nents > 1); + + sec4_sg_index = 0; + if (mapped_src_nents > 1) { + sg_to_sec4_sg_last(req->src, src_len, + edesc->sec4_sg + sec4_sg_index, 0); + sec4_sg_index += mapped_src_nents; + } + if (mapped_dst_nents > 1) { + sg_to_sec4_sg_last(req->dst, dst_len, + edesc->sec4_sg + sec4_sg_index, 0); + } + + if (!sec4_sg_bytes) + return edesc; + + edesc->sec4_sg_dma = dma_map_single(jrdev, edesc->sec4_sg, + sec4_sg_bytes, DMA_TO_DEVICE); + if (dma_mapping_error(jrdev, edesc->sec4_sg_dma)) { + dev_err(jrdev, "unable to map S/G table\n"); + aead_unmap(jrdev, edesc, req); + kfree(edesc); + return ERR_PTR(-ENOMEM); + } + + edesc->sec4_sg_bytes = sec4_sg_bytes; + + return edesc; +} + +static int aead_enqueue_req(struct device *jrdev, struct aead_request *req) +{ + struct caam_drv_private_jr *jrpriv = dev_get_drvdata(jrdev); + struct caam_aead_req_ctx *rctx = aead_request_ctx(req); + struct aead_edesc *edesc = rctx->edesc; + u32 *desc = edesc->hw_desc; + int ret; + + /* + * Only the backlog request are sent to crypto-engine since the others + * can be handled by CAAM, if free, especially since JR has up to 1024 + * entries (more than the 10 entries from crypto-engine). + */ + if (req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG) + ret = crypto_transfer_aead_request_to_engine(jrpriv->engine, + req); + else + ret = caam_jr_enqueue(jrdev, desc, aead_crypt_done, req); + + if ((ret != -EINPROGRESS) && (ret != -EBUSY)) { + aead_unmap(jrdev, edesc, req); + kfree(rctx->edesc); + } + + return ret; +} + +static inline int chachapoly_crypt(struct aead_request *req, bool encrypt) +{ + struct aead_edesc *edesc; + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct caam_ctx *ctx = crypto_aead_ctx(aead); + struct device *jrdev = ctx->jrdev; + bool all_contig; + u32 *desc; + + edesc = aead_edesc_alloc(req, CHACHAPOLY_DESC_JOB_IO_LEN, &all_contig, + encrypt); + if (IS_ERR(edesc)) + return PTR_ERR(edesc); + + desc = edesc->hw_desc; + + init_chachapoly_job(req, edesc, all_contig, encrypt); + print_hex_dump_debug("chachapoly jobdesc@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc), + 1); + + return aead_enqueue_req(jrdev, req); +} + +static int chachapoly_encrypt(struct aead_request *req) +{ + return chachapoly_crypt(req, true); +} + +static int chachapoly_decrypt(struct aead_request *req) +{ + return chachapoly_crypt(req, false); +} + +static inline int aead_crypt(struct aead_request *req, bool encrypt) +{ + struct aead_edesc *edesc; + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct caam_ctx *ctx = crypto_aead_ctx(aead); + struct device *jrdev = ctx->jrdev; + bool all_contig; + + /* allocate extended descriptor */ + edesc = aead_edesc_alloc(req, AUTHENC_DESC_JOB_IO_LEN, + &all_contig, encrypt); + if (IS_ERR(edesc)) + return PTR_ERR(edesc); + + /* Create and submit job descriptor */ + init_authenc_job(req, edesc, all_contig, encrypt); + + print_hex_dump_debug("aead jobdesc@"__stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc, + desc_bytes(edesc->hw_desc), 1); + + return aead_enqueue_req(jrdev, req); +} + +static int aead_encrypt(struct aead_request *req) +{ + return aead_crypt(req, true); +} + +static int aead_decrypt(struct aead_request *req) +{ + return aead_crypt(req, false); +} + +static int aead_do_one_req(struct crypto_engine *engine, void *areq) +{ + struct aead_request *req = aead_request_cast(areq); + struct caam_ctx *ctx = crypto_aead_ctx(crypto_aead_reqtfm(req)); + struct caam_aead_req_ctx *rctx = aead_request_ctx(req); + u32 *desc = rctx->edesc->hw_desc; + int ret; + + rctx->edesc->bklog = true; + + ret = caam_jr_enqueue(ctx->jrdev, desc, aead_crypt_done, req); + + if (ret == -ENOSPC && engine->retry_support) + return ret; + + if (ret != -EINPROGRESS) { + aead_unmap(ctx->jrdev, rctx->edesc, req); + kfree(rctx->edesc); + } else { + ret = 0; + } + + return ret; +} + +static inline int gcm_crypt(struct aead_request *req, bool encrypt) +{ + struct aead_edesc *edesc; + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct caam_ctx *ctx = crypto_aead_ctx(aead); + struct device *jrdev = ctx->jrdev; + bool all_contig; + + /* allocate extended descriptor */ + edesc = aead_edesc_alloc(req, GCM_DESC_JOB_IO_LEN, &all_contig, + encrypt); + if (IS_ERR(edesc)) + return PTR_ERR(edesc); + + /* Create and submit job descriptor */ + init_gcm_job(req, edesc, all_contig, encrypt); + + print_hex_dump_debug("aead jobdesc@"__stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc, + desc_bytes(edesc->hw_desc), 1); + + return aead_enqueue_req(jrdev, req); +} + +static int gcm_encrypt(struct aead_request *req) +{ + return gcm_crypt(req, true); +} + +static int gcm_decrypt(struct aead_request *req) +{ + return gcm_crypt(req, false); +} + +static int ipsec_gcm_encrypt(struct aead_request *req) +{ + return crypto_ipsec_check_assoclen(req->assoclen) ? : gcm_encrypt(req); +} + +static int ipsec_gcm_decrypt(struct aead_request *req) +{ + return crypto_ipsec_check_assoclen(req->assoclen) ? : gcm_decrypt(req); +} + +/* + * allocate and map the skcipher extended descriptor for skcipher + */ +static struct skcipher_edesc *skcipher_edesc_alloc(struct skcipher_request *req, + int desc_bytes) +{ + struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req); + struct caam_ctx *ctx = crypto_skcipher_ctx(skcipher); + struct caam_skcipher_req_ctx *rctx = skcipher_request_ctx(req); + struct device *jrdev = ctx->jrdev; + gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? + GFP_KERNEL : GFP_ATOMIC; + int src_nents, mapped_src_nents, dst_nents = 0, mapped_dst_nents = 0; + struct skcipher_edesc *edesc; + dma_addr_t iv_dma = 0; + u8 *iv; + int ivsize = crypto_skcipher_ivsize(skcipher); + int dst_sg_idx, sec4_sg_ents, sec4_sg_bytes; + + src_nents = sg_nents_for_len(req->src, req->cryptlen); + if (unlikely(src_nents < 0)) { + dev_err(jrdev, "Insufficient bytes (%d) in src S/G\n", + req->cryptlen); + return ERR_PTR(src_nents); + } + + if (req->dst != req->src) { + dst_nents = sg_nents_for_len(req->dst, req->cryptlen); + if (unlikely(dst_nents < 0)) { + dev_err(jrdev, "Insufficient bytes (%d) in dst S/G\n", + req->cryptlen); + return ERR_PTR(dst_nents); + } + } + + if (likely(req->src == req->dst)) { + mapped_src_nents = dma_map_sg(jrdev, req->src, src_nents, + DMA_BIDIRECTIONAL); + if (unlikely(!mapped_src_nents)) { + dev_err(jrdev, "unable to map source\n"); + return ERR_PTR(-ENOMEM); + } + } else { + mapped_src_nents = dma_map_sg(jrdev, req->src, src_nents, + DMA_TO_DEVICE); + if (unlikely(!mapped_src_nents)) { + dev_err(jrdev, "unable to map source\n"); + return ERR_PTR(-ENOMEM); + } + mapped_dst_nents = dma_map_sg(jrdev, req->dst, dst_nents, + DMA_FROM_DEVICE); + if (unlikely(!mapped_dst_nents)) { + dev_err(jrdev, "unable to map destination\n"); + dma_unmap_sg(jrdev, req->src, src_nents, DMA_TO_DEVICE); + return ERR_PTR(-ENOMEM); + } + } + + if (!ivsize && mapped_src_nents == 1) + sec4_sg_ents = 0; // no need for an input hw s/g table + else + sec4_sg_ents = mapped_src_nents + !!ivsize; + dst_sg_idx = sec4_sg_ents; + + /* + * Input, output HW S/G tables: [IV, src][dst, IV] + * IV entries point to the same buffer + * If src == dst, S/G entries are reused (S/G tables overlap) + * + * HW reads 4 S/G entries at a time; make sure the reads don't go beyond + * the end of the table by allocating more S/G entries. Logic: + * if (output S/G) + * pad output S/G, if needed + * else if (input S/G) ... + * pad input S/G, if needed + */ + if (ivsize || mapped_dst_nents > 1) { + if (req->src == req->dst) + sec4_sg_ents = !!ivsize + pad_sg_nents(sec4_sg_ents); + else + sec4_sg_ents += pad_sg_nents(mapped_dst_nents + + !!ivsize); + } else { + sec4_sg_ents = pad_sg_nents(sec4_sg_ents); + } + + sec4_sg_bytes = sec4_sg_ents * sizeof(struct sec4_sg_entry); + + /* + * allocate space for base edesc and hw desc commands, link tables, IV + */ + edesc = kzalloc(sizeof(*edesc) + desc_bytes + sec4_sg_bytes + ivsize, + GFP_DMA | flags); + if (!edesc) { + dev_err(jrdev, "could not allocate extended descriptor\n"); + caam_unmap(jrdev, req->src, req->dst, src_nents, dst_nents, 0, + 0, 0, 0); + return ERR_PTR(-ENOMEM); + } + + edesc->src_nents = src_nents; + edesc->dst_nents = dst_nents; + edesc->mapped_src_nents = mapped_src_nents; + edesc->mapped_dst_nents = mapped_dst_nents; + edesc->sec4_sg_bytes = sec4_sg_bytes; + edesc->sec4_sg = (struct sec4_sg_entry *)((u8 *)edesc->hw_desc + + desc_bytes); + rctx->edesc = edesc; + + /* Make sure IV is located in a DMAable area */ + if (ivsize) { + iv = (u8 *)edesc->sec4_sg + sec4_sg_bytes; + memcpy(iv, req->iv, ivsize); + + iv_dma = dma_map_single(jrdev, iv, ivsize, DMA_BIDIRECTIONAL); + if (dma_mapping_error(jrdev, iv_dma)) { + dev_err(jrdev, "unable to map IV\n"); + caam_unmap(jrdev, req->src, req->dst, src_nents, + dst_nents, 0, 0, 0, 0); + kfree(edesc); + return ERR_PTR(-ENOMEM); + } + + dma_to_sec4_sg_one(edesc->sec4_sg, iv_dma, ivsize, 0); + } + if (dst_sg_idx) + sg_to_sec4_sg(req->src, req->cryptlen, edesc->sec4_sg + + !!ivsize, 0); + + if (req->src != req->dst && (ivsize || mapped_dst_nents > 1)) + sg_to_sec4_sg(req->dst, req->cryptlen, edesc->sec4_sg + + dst_sg_idx, 0); + + if (ivsize) + dma_to_sec4_sg_one(edesc->sec4_sg + dst_sg_idx + + mapped_dst_nents, iv_dma, ivsize, 0); + + if (ivsize || mapped_dst_nents > 1) + sg_to_sec4_set_last(edesc->sec4_sg + dst_sg_idx + + mapped_dst_nents - 1 + !!ivsize); + + if (sec4_sg_bytes) { + edesc->sec4_sg_dma = dma_map_single(jrdev, edesc->sec4_sg, + sec4_sg_bytes, + DMA_TO_DEVICE); + if (dma_mapping_error(jrdev, edesc->sec4_sg_dma)) { + dev_err(jrdev, "unable to map S/G table\n"); + caam_unmap(jrdev, req->src, req->dst, src_nents, + dst_nents, iv_dma, ivsize, 0, 0); + kfree(edesc); + return ERR_PTR(-ENOMEM); + } + } + + edesc->iv_dma = iv_dma; + + print_hex_dump_debug("skcipher sec4_sg@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, edesc->sec4_sg, + sec4_sg_bytes, 1); + + return edesc; +} + +static int skcipher_do_one_req(struct crypto_engine *engine, void *areq) +{ + struct skcipher_request *req = skcipher_request_cast(areq); + struct caam_ctx *ctx = crypto_skcipher_ctx(crypto_skcipher_reqtfm(req)); + struct caam_skcipher_req_ctx *rctx = skcipher_request_ctx(req); + u32 *desc = rctx->edesc->hw_desc; + int ret; + + rctx->edesc->bklog = true; + + ret = caam_jr_enqueue(ctx->jrdev, desc, skcipher_crypt_done, req); + + if (ret == -ENOSPC && engine->retry_support) + return ret; + + if (ret != -EINPROGRESS) { + skcipher_unmap(ctx->jrdev, rctx->edesc, req); + kfree(rctx->edesc); + } else { + ret = 0; + } + + return ret; +} + +static inline bool xts_skcipher_ivsize(struct skcipher_request *req) +{ + struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req); + unsigned int ivsize = crypto_skcipher_ivsize(skcipher); + + return !!get_unaligned((u64 *)(req->iv + (ivsize / 2))); +} + +static inline int skcipher_crypt(struct skcipher_request *req, bool encrypt) +{ + struct skcipher_edesc *edesc; + struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req); + struct caam_ctx *ctx = crypto_skcipher_ctx(skcipher); + struct device *jrdev = ctx->jrdev; + struct caam_drv_private_jr *jrpriv = dev_get_drvdata(jrdev); + struct caam_drv_private *ctrlpriv = dev_get_drvdata(jrdev->parent); + u32 *desc; + int ret = 0; + + /* + * XTS is expected to return an error even for input length = 0 + * Note that the case input length < block size will be caught during + * HW offloading and return an error. + */ + if (!req->cryptlen && !ctx->fallback) + return 0; + + if (ctx->fallback && ((ctrlpriv->era <= 8 && xts_skcipher_ivsize(req)) || + ctx->xts_key_fallback)) { + struct caam_skcipher_req_ctx *rctx = skcipher_request_ctx(req); + + skcipher_request_set_tfm(&rctx->fallback_req, ctx->fallback); + skcipher_request_set_callback(&rctx->fallback_req, + req->base.flags, + req->base.complete, + req->base.data); + skcipher_request_set_crypt(&rctx->fallback_req, req->src, + req->dst, req->cryptlen, req->iv); + + return encrypt ? crypto_skcipher_encrypt(&rctx->fallback_req) : + crypto_skcipher_decrypt(&rctx->fallback_req); + } + + /* allocate extended descriptor */ + edesc = skcipher_edesc_alloc(req, DESC_JOB_IO_LEN * CAAM_CMD_SZ); + if (IS_ERR(edesc)) + return PTR_ERR(edesc); + + /* Create and submit job descriptor*/ + init_skcipher_job(req, edesc, encrypt); + + print_hex_dump_debug("skcipher jobdesc@" __stringify(__LINE__)": ", + DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc, + desc_bytes(edesc->hw_desc), 1); + + desc = edesc->hw_desc; + /* + * Only the backlog request are sent to crypto-engine since the others + * can be handled by CAAM, if free, especially since JR has up to 1024 + * entries (more than the 10 entries from crypto-engine). + */ + if (req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG) + ret = crypto_transfer_skcipher_request_to_engine(jrpriv->engine, + req); + else + ret = caam_jr_enqueue(jrdev, desc, skcipher_crypt_done, req); + + if ((ret != -EINPROGRESS) && (ret != -EBUSY)) { + skcipher_unmap(jrdev, edesc, req); + kfree(edesc); + } + + return ret; +} + +static int skcipher_encrypt(struct skcipher_request *req) +{ + return skcipher_crypt(req, true); +} + +static int skcipher_decrypt(struct skcipher_request *req) +{ + return skcipher_crypt(req, false); +} + +static struct caam_skcipher_alg driver_algs[] = { + { + .skcipher = { + .base = { + .cra_name = "cbc(aes)", + .cra_driver_name = "cbc-aes-caam", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aes_skcipher_setkey, + .encrypt = skcipher_encrypt, + .decrypt = skcipher_decrypt, + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + .ivsize = AES_BLOCK_SIZE, + }, + .caam.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + }, + { + .skcipher = { + .base = { + .cra_name = "cbc(des3_ede)", + .cra_driver_name = "cbc-3des-caam", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_skcipher_setkey, + .encrypt = skcipher_encrypt, + .decrypt = skcipher_decrypt, + .min_keysize = DES3_EDE_KEY_SIZE, + .max_keysize = DES3_EDE_KEY_SIZE, + .ivsize = DES3_EDE_BLOCK_SIZE, + }, + .caam.class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + }, + { + .skcipher = { + .base = { + .cra_name = "cbc(des)", + .cra_driver_name = "cbc-des-caam", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = des_skcipher_setkey, + .encrypt = skcipher_encrypt, + .decrypt = skcipher_decrypt, + .min_keysize = DES_KEY_SIZE, + .max_keysize = DES_KEY_SIZE, + .ivsize = DES_BLOCK_SIZE, + }, + .caam.class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + }, + { + .skcipher = { + .base = { + .cra_name = "ctr(aes)", + .cra_driver_name = "ctr-aes-caam", + .cra_blocksize = 1, + }, + .setkey = ctr_skcipher_setkey, + .encrypt = skcipher_encrypt, + .decrypt = skcipher_decrypt, + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + .ivsize = AES_BLOCK_SIZE, + .chunksize = AES_BLOCK_SIZE, + }, + .caam.class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + }, + { + .skcipher = { + .base = { + .cra_name = "rfc3686(ctr(aes))", + .cra_driver_name = "rfc3686-ctr-aes-caam", + .cra_blocksize = 1, + }, + .setkey = rfc3686_skcipher_setkey, + .encrypt = skcipher_encrypt, + .decrypt = skcipher_decrypt, + .min_keysize = AES_MIN_KEY_SIZE + + CTR_RFC3686_NONCE_SIZE, + .max_keysize = AES_MAX_KEY_SIZE + + CTR_RFC3686_NONCE_SIZE, + .ivsize = CTR_RFC3686_IV_SIZE, + .chunksize = AES_BLOCK_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .rfc3686 = true, + }, + }, + { + .skcipher = { + .base = { + .cra_name = "xts(aes)", + .cra_driver_name = "xts-aes-caam", + .cra_flags = CRYPTO_ALG_NEED_FALLBACK, + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = xts_skcipher_setkey, + .encrypt = skcipher_encrypt, + .decrypt = skcipher_decrypt, + .min_keysize = 2 * AES_MIN_KEY_SIZE, + .max_keysize = 2 * AES_MAX_KEY_SIZE, + .ivsize = AES_BLOCK_SIZE, + }, + .caam.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_XTS, + }, + { + .skcipher = { + .base = { + .cra_name = "ecb(des)", + .cra_driver_name = "ecb-des-caam", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = des_skcipher_setkey, + .encrypt = skcipher_encrypt, + .decrypt = skcipher_decrypt, + .min_keysize = DES_KEY_SIZE, + .max_keysize = DES_KEY_SIZE, + }, + .caam.class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_ECB, + }, + { + .skcipher = { + .base = { + .cra_name = "ecb(aes)", + .cra_driver_name = "ecb-aes-caam", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aes_skcipher_setkey, + .encrypt = skcipher_encrypt, + .decrypt = skcipher_decrypt, + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + }, + .caam.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_ECB, + }, + { + .skcipher = { + .base = { + .cra_name = "ecb(des3_ede)", + .cra_driver_name = "ecb-des3-caam", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_skcipher_setkey, + .encrypt = skcipher_encrypt, + .decrypt = skcipher_decrypt, + .min_keysize = DES3_EDE_KEY_SIZE, + .max_keysize = DES3_EDE_KEY_SIZE, + }, + .caam.class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_ECB, + }, +}; + +static struct caam_aead_alg driver_aeads[] = { + { + .aead = { + .base = { + .cra_name = "rfc4106(gcm(aes))", + .cra_driver_name = "rfc4106-gcm-aes-caam", + .cra_blocksize = 1, + }, + .setkey = rfc4106_setkey, + .setauthsize = rfc4106_setauthsize, + .encrypt = ipsec_gcm_encrypt, + .decrypt = ipsec_gcm_decrypt, + .ivsize = GCM_RFC4106_IV_SIZE, + .maxauthsize = AES_BLOCK_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_GCM, + .nodkp = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "rfc4543(gcm(aes))", + .cra_driver_name = "rfc4543-gcm-aes-caam", + .cra_blocksize = 1, + }, + .setkey = rfc4543_setkey, + .setauthsize = rfc4543_setauthsize, + .encrypt = ipsec_gcm_encrypt, + .decrypt = ipsec_gcm_decrypt, + .ivsize = GCM_RFC4543_IV_SIZE, + .maxauthsize = AES_BLOCK_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_GCM, + .nodkp = true, + }, + }, + /* Galois Counter Mode */ + { + .aead = { + .base = { + .cra_name = "gcm(aes)", + .cra_driver_name = "gcm-aes-caam", + .cra_blocksize = 1, + }, + .setkey = gcm_setkey, + .setauthsize = gcm_setauthsize, + .encrypt = gcm_encrypt, + .decrypt = gcm_decrypt, + .ivsize = GCM_AES_IV_SIZE, + .maxauthsize = AES_BLOCK_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_GCM, + .nodkp = true, + }, + }, + /* single-pass ipsec_esp descriptor */ + { + .aead = { + .base = { + .cra_name = "authenc(hmac(md5)," + "ecb(cipher_null))", + .cra_driver_name = "authenc-hmac-md5-" + "ecb-cipher_null-caam", + .cra_blocksize = NULL_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = NULL_IV_SIZE, + .maxauthsize = MD5_DIGEST_SIZE, + }, + .caam = { + .class2_alg_type = OP_ALG_ALGSEL_MD5 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha1)," + "ecb(cipher_null))", + .cra_driver_name = "authenc-hmac-sha1-" + "ecb-cipher_null-caam", + .cra_blocksize = NULL_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = NULL_IV_SIZE, + .maxauthsize = SHA1_DIGEST_SIZE, + }, + .caam = { + .class2_alg_type = OP_ALG_ALGSEL_SHA1 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha224)," + "ecb(cipher_null))", + .cra_driver_name = "authenc-hmac-sha224-" + "ecb-cipher_null-caam", + .cra_blocksize = NULL_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = NULL_IV_SIZE, + .maxauthsize = SHA224_DIGEST_SIZE, + }, + .caam = { + .class2_alg_type = OP_ALG_ALGSEL_SHA224 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha256)," + "ecb(cipher_null))", + .cra_driver_name = "authenc-hmac-sha256-" + "ecb-cipher_null-caam", + .cra_blocksize = NULL_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = NULL_IV_SIZE, + .maxauthsize = SHA256_DIGEST_SIZE, + }, + .caam = { + .class2_alg_type = OP_ALG_ALGSEL_SHA256 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha384)," + "ecb(cipher_null))", + .cra_driver_name = "authenc-hmac-sha384-" + "ecb-cipher_null-caam", + .cra_blocksize = NULL_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = NULL_IV_SIZE, + .maxauthsize = SHA384_DIGEST_SIZE, + }, + .caam = { + .class2_alg_type = OP_ALG_ALGSEL_SHA384 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha512)," + "ecb(cipher_null))", + .cra_driver_name = "authenc-hmac-sha512-" + "ecb-cipher_null-caam", + .cra_blocksize = NULL_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = NULL_IV_SIZE, + .maxauthsize = SHA512_DIGEST_SIZE, + }, + .caam = { + .class2_alg_type = OP_ALG_ALGSEL_SHA512 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(md5),cbc(aes))", + .cra_driver_name = "authenc-hmac-md5-" + "cbc-aes-caam", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = MD5_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_MD5 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(md5)," + "cbc(aes)))", + .cra_driver_name = "echainiv-authenc-hmac-md5-" + "cbc-aes-caam", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = MD5_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_MD5 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha1),cbc(aes))", + .cra_driver_name = "authenc-hmac-sha1-" + "cbc-aes-caam", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA1_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA1 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha1)," + "cbc(aes)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha1-cbc-aes-caam", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA1_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA1 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha224),cbc(aes))", + .cra_driver_name = "authenc-hmac-sha224-" + "cbc-aes-caam", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA224_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA224 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha224)," + "cbc(aes)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha224-cbc-aes-caam", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA224_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA224 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha256),cbc(aes))", + .cra_driver_name = "authenc-hmac-sha256-" + "cbc-aes-caam", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA256_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA256 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha256)," + "cbc(aes)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha256-cbc-aes-caam", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA256_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA256 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha384),cbc(aes))", + .cra_driver_name = "authenc-hmac-sha384-" + "cbc-aes-caam", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA384_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA384 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha384)," + "cbc(aes)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha384-cbc-aes-caam", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA384_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA384 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha512),cbc(aes))", + .cra_driver_name = "authenc-hmac-sha512-" + "cbc-aes-caam", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA512_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA512 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha512)," + "cbc(aes)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha512-cbc-aes-caam", + .cra_blocksize = AES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA512_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA512 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(md5),cbc(des3_ede))", + .cra_driver_name = "authenc-hmac-md5-" + "cbc-des3_ede-caam", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = MD5_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_MD5 | + OP_ALG_AAI_HMAC_PRECOMP, + } + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(md5)," + "cbc(des3_ede)))", + .cra_driver_name = "echainiv-authenc-hmac-md5-" + "cbc-des3_ede-caam", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = MD5_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_MD5 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + } + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha1)," + "cbc(des3_ede))", + .cra_driver_name = "authenc-hmac-sha1-" + "cbc-des3_ede-caam", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA1_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA1 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha1)," + "cbc(des3_ede)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha1-" + "cbc-des3_ede-caam", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA1_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA1 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha224)," + "cbc(des3_ede))", + .cra_driver_name = "authenc-hmac-sha224-" + "cbc-des3_ede-caam", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA224_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA224 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha224)," + "cbc(des3_ede)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha224-" + "cbc-des3_ede-caam", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA224_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA224 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha256)," + "cbc(des3_ede))", + .cra_driver_name = "authenc-hmac-sha256-" + "cbc-des3_ede-caam", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA256_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA256 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha256)," + "cbc(des3_ede)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha256-" + "cbc-des3_ede-caam", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA256_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA256 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha384)," + "cbc(des3_ede))", + .cra_driver_name = "authenc-hmac-sha384-" + "cbc-des3_ede-caam", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA384_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA384 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha384)," + "cbc(des3_ede)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha384-" + "cbc-des3_ede-caam", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA384_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA384 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha512)," + "cbc(des3_ede))", + .cra_driver_name = "authenc-hmac-sha512-" + "cbc-des3_ede-caam", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA512_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA512 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha512)," + "cbc(des3_ede)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha512-" + "cbc-des3_ede-caam", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + }, + .setkey = des3_aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA512_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA512 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(md5),cbc(des))", + .cra_driver_name = "authenc-hmac-md5-" + "cbc-des-caam", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = MD5_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_MD5 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(md5)," + "cbc(des)))", + .cra_driver_name = "echainiv-authenc-hmac-md5-" + "cbc-des-caam", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = MD5_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_MD5 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha1),cbc(des))", + .cra_driver_name = "authenc-hmac-sha1-" + "cbc-des-caam", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = SHA1_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA1 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha1)," + "cbc(des)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha1-cbc-des-caam", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = SHA1_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA1 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha224),cbc(des))", + .cra_driver_name = "authenc-hmac-sha224-" + "cbc-des-caam", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = SHA224_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA224 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha224)," + "cbc(des)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha224-cbc-des-caam", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = SHA224_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA224 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha256),cbc(des))", + .cra_driver_name = "authenc-hmac-sha256-" + "cbc-des-caam", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = SHA256_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA256 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha256)," + "cbc(des)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha256-cbc-des-caam", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = SHA256_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA256 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha384),cbc(des))", + .cra_driver_name = "authenc-hmac-sha384-" + "cbc-des-caam", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = SHA384_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA384 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha384)," + "cbc(des)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha384-cbc-des-caam", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = SHA384_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA384 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha512),cbc(des))", + .cra_driver_name = "authenc-hmac-sha512-" + "cbc-des-caam", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = SHA512_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA512 | + OP_ALG_AAI_HMAC_PRECOMP, + }, + }, + { + .aead = { + .base = { + .cra_name = "echainiv(authenc(hmac(sha512)," + "cbc(des)))", + .cra_driver_name = "echainiv-authenc-" + "hmac-sha512-cbc-des-caam", + .cra_blocksize = DES_BLOCK_SIZE, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = DES_BLOCK_SIZE, + .maxauthsize = SHA512_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC, + .class2_alg_type = OP_ALG_ALGSEL_SHA512 | + OP_ALG_AAI_HMAC_PRECOMP, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(md5)," + "rfc3686(ctr(aes)))", + .cra_driver_name = "authenc-hmac-md5-" + "rfc3686-ctr-aes-caam", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = MD5_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_MD5 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "seqiv(authenc(" + "hmac(md5),rfc3686(ctr(aes))))", + .cra_driver_name = "seqiv-authenc-hmac-md5-" + "rfc3686-ctr-aes-caam", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = MD5_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_MD5 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha1)," + "rfc3686(ctr(aes)))", + .cra_driver_name = "authenc-hmac-sha1-" + "rfc3686-ctr-aes-caam", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = SHA1_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_SHA1 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "seqiv(authenc(" + "hmac(sha1),rfc3686(ctr(aes))))", + .cra_driver_name = "seqiv-authenc-hmac-sha1-" + "rfc3686-ctr-aes-caam", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = SHA1_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_SHA1 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha224)," + "rfc3686(ctr(aes)))", + .cra_driver_name = "authenc-hmac-sha224-" + "rfc3686-ctr-aes-caam", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = SHA224_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_SHA224 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "seqiv(authenc(" + "hmac(sha224),rfc3686(ctr(aes))))", + .cra_driver_name = "seqiv-authenc-hmac-sha224-" + "rfc3686-ctr-aes-caam", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = SHA224_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_SHA224 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha256)," + "rfc3686(ctr(aes)))", + .cra_driver_name = "authenc-hmac-sha256-" + "rfc3686-ctr-aes-caam", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = SHA256_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_SHA256 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "seqiv(authenc(hmac(sha256)," + "rfc3686(ctr(aes))))", + .cra_driver_name = "seqiv-authenc-hmac-sha256-" + "rfc3686-ctr-aes-caam", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = SHA256_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_SHA256 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha384)," + "rfc3686(ctr(aes)))", + .cra_driver_name = "authenc-hmac-sha384-" + "rfc3686-ctr-aes-caam", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = SHA384_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_SHA384 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "seqiv(authenc(hmac(sha384)," + "rfc3686(ctr(aes))))", + .cra_driver_name = "seqiv-authenc-hmac-sha384-" + "rfc3686-ctr-aes-caam", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = SHA384_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_SHA384 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "authenc(hmac(sha512)," + "rfc3686(ctr(aes)))", + .cra_driver_name = "authenc-hmac-sha512-" + "rfc3686-ctr-aes-caam", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = SHA512_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_SHA512 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "seqiv(authenc(hmac(sha512)," + "rfc3686(ctr(aes))))", + .cra_driver_name = "seqiv-authenc-hmac-sha512-" + "rfc3686-ctr-aes-caam", + .cra_blocksize = 1, + }, + .setkey = aead_setkey, + .setauthsize = aead_setauthsize, + .encrypt = aead_encrypt, + .decrypt = aead_decrypt, + .ivsize = CTR_RFC3686_IV_SIZE, + .maxauthsize = SHA512_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_AES | + OP_ALG_AAI_CTR_MOD128, + .class2_alg_type = OP_ALG_ALGSEL_SHA512 | + OP_ALG_AAI_HMAC_PRECOMP, + .rfc3686 = true, + .geniv = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "rfc7539(chacha20,poly1305)", + .cra_driver_name = "rfc7539-chacha20-poly1305-" + "caam", + .cra_blocksize = 1, + }, + .setkey = chachapoly_setkey, + .setauthsize = chachapoly_setauthsize, + .encrypt = chachapoly_encrypt, + .decrypt = chachapoly_decrypt, + .ivsize = CHACHAPOLY_IV_SIZE, + .maxauthsize = POLY1305_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_CHACHA20 | + OP_ALG_AAI_AEAD, + .class2_alg_type = OP_ALG_ALGSEL_POLY1305 | + OP_ALG_AAI_AEAD, + .nodkp = true, + }, + }, + { + .aead = { + .base = { + .cra_name = "rfc7539esp(chacha20,poly1305)", + .cra_driver_name = "rfc7539esp-chacha20-" + "poly1305-caam", + .cra_blocksize = 1, + }, + .setkey = chachapoly_setkey, + .setauthsize = chachapoly_setauthsize, + .encrypt = chachapoly_encrypt, + .decrypt = chachapoly_decrypt, + .ivsize = 8, + .maxauthsize = POLY1305_DIGEST_SIZE, + }, + .caam = { + .class1_alg_type = OP_ALG_ALGSEL_CHACHA20 | + OP_ALG_AAI_AEAD, + .class2_alg_type = OP_ALG_ALGSEL_POLY1305 | + OP_ALG_AAI_AEAD, + .nodkp = true, + }, + }, +}; + +static int caam_init_common(struct caam_ctx *ctx, struct caam_alg_entry *caam, + bool uses_dkp) +{ + dma_addr_t dma_addr; + struct caam_drv_private *priv; + const size_t sh_desc_enc_offset = offsetof(struct caam_ctx, + sh_desc_enc); + + ctx->jrdev = caam_jr_alloc(); + if (IS_ERR(ctx->jrdev)) { + pr_err("Job Ring Device allocation for transform failed\n"); + return PTR_ERR(ctx->jrdev); + } + + priv = dev_get_drvdata(ctx->jrdev->parent); + if (priv->era >= 6 && uses_dkp) + ctx->dir = DMA_BIDIRECTIONAL; + else + ctx->dir = DMA_TO_DEVICE; + + dma_addr = dma_map_single_attrs(ctx->jrdev, ctx->sh_desc_enc, + offsetof(struct caam_ctx, + sh_desc_enc_dma) - + sh_desc_enc_offset, + ctx->dir, DMA_ATTR_SKIP_CPU_SYNC); + if (dma_mapping_error(ctx->jrdev, dma_addr)) { + dev_err(ctx->jrdev, "unable to map key, shared descriptors\n"); + caam_jr_free(ctx->jrdev); + return -ENOMEM; + } + + ctx->sh_desc_enc_dma = dma_addr; + ctx->sh_desc_dec_dma = dma_addr + offsetof(struct caam_ctx, + sh_desc_dec) - + sh_desc_enc_offset; + ctx->key_dma = dma_addr + offsetof(struct caam_ctx, key) - + sh_desc_enc_offset; + + /* copy descriptor header template value */ + ctx->cdata.algtype = OP_TYPE_CLASS1_ALG | caam->class1_alg_type; + ctx->adata.algtype = OP_TYPE_CLASS2_ALG | caam->class2_alg_type; + + return 0; +} + +static int caam_cra_init(struct crypto_skcipher *tfm) +{ + struct skcipher_alg *alg = crypto_skcipher_alg(tfm); + struct caam_skcipher_alg *caam_alg = + container_of(alg, typeof(*caam_alg), skcipher); + struct caam_ctx *ctx = crypto_skcipher_ctx(tfm); + u32 alg_aai = caam_alg->caam.class1_alg_type & OP_ALG_AAI_MASK; + int ret = 0; + + ctx->enginectx.op.do_one_request = skcipher_do_one_req; + + if (alg_aai == OP_ALG_AAI_XTS) { + const char *tfm_name = crypto_tfm_alg_name(&tfm->base); + struct crypto_skcipher *fallback; + + fallback = crypto_alloc_skcipher(tfm_name, 0, + CRYPTO_ALG_NEED_FALLBACK); + if (IS_ERR(fallback)) { + pr_err("Failed to allocate %s fallback: %ld\n", + tfm_name, PTR_ERR(fallback)); + return PTR_ERR(fallback); + } + + ctx->fallback = fallback; + crypto_skcipher_set_reqsize(tfm, sizeof(struct caam_skcipher_req_ctx) + + crypto_skcipher_reqsize(fallback)); + } else { + crypto_skcipher_set_reqsize(tfm, sizeof(struct caam_skcipher_req_ctx)); + } + + ret = caam_init_common(ctx, &caam_alg->caam, false); + if (ret && ctx->fallback) + crypto_free_skcipher(ctx->fallback); + + return ret; +} + +static int caam_aead_init(struct crypto_aead *tfm) +{ + struct aead_alg *alg = crypto_aead_alg(tfm); + struct caam_aead_alg *caam_alg = + container_of(alg, struct caam_aead_alg, aead); + struct caam_ctx *ctx = crypto_aead_ctx(tfm); + + crypto_aead_set_reqsize(tfm, sizeof(struct caam_aead_req_ctx)); + + ctx->enginectx.op.do_one_request = aead_do_one_req; + + return caam_init_common(ctx, &caam_alg->caam, !caam_alg->caam.nodkp); +} + +static void caam_exit_common(struct caam_ctx *ctx) +{ + dma_unmap_single_attrs(ctx->jrdev, ctx->sh_desc_enc_dma, + offsetof(struct caam_ctx, sh_desc_enc_dma) - + offsetof(struct caam_ctx, sh_desc_enc), + ctx->dir, DMA_ATTR_SKIP_CPU_SYNC); + caam_jr_free(ctx->jrdev); +} + +static void caam_cra_exit(struct crypto_skcipher *tfm) +{ + struct caam_ctx *ctx = crypto_skcipher_ctx(tfm); + + if (ctx->fallback) + crypto_free_skcipher(ctx->fallback); + caam_exit_common(ctx); +} + +static void caam_aead_exit(struct crypto_aead *tfm) +{ + caam_exit_common(crypto_aead_ctx(tfm)); +} + +void caam_algapi_exit(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(driver_aeads); i++) { + struct caam_aead_alg *t_alg = driver_aeads + i; + + if (t_alg->registered) + crypto_unregister_aead(&t_alg->aead); + } + + for (i = 0; i < ARRAY_SIZE(driver_algs); i++) { + struct caam_skcipher_alg *t_alg = driver_algs + i; + + if (t_alg->registered) + crypto_unregister_skcipher(&t_alg->skcipher); + } +} + +static void caam_skcipher_alg_init(struct caam_skcipher_alg *t_alg) +{ + struct skcipher_alg *alg = &t_alg->skcipher; + + alg->base.cra_module = THIS_MODULE; + alg->base.cra_priority = CAAM_CRA_PRIORITY; + alg->base.cra_ctxsize = sizeof(struct caam_ctx); + alg->base.cra_flags |= (CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY | + CRYPTO_ALG_KERN_DRIVER_ONLY); + + alg->init = caam_cra_init; + alg->exit = caam_cra_exit; +} + +static void caam_aead_alg_init(struct caam_aead_alg *t_alg) +{ + struct aead_alg *alg = &t_alg->aead; + + alg->base.cra_module = THIS_MODULE; + alg->base.cra_priority = CAAM_CRA_PRIORITY; + alg->base.cra_ctxsize = sizeof(struct caam_ctx); + alg->base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY | + CRYPTO_ALG_KERN_DRIVER_ONLY; + + alg->init = caam_aead_init; + alg->exit = caam_aead_exit; +} + +int caam_algapi_init(struct device *ctrldev) +{ + struct caam_drv_private *priv = dev_get_drvdata(ctrldev); + int i = 0, err = 0; + u32 aes_vid, aes_inst, des_inst, md_vid, md_inst, ccha_inst, ptha_inst; + unsigned int md_limit = SHA512_DIGEST_SIZE; + bool registered = false, gcm_support; + + /* + * Register crypto algorithms the device supports. + * First, detect presence and attributes of DES, AES, and MD blocks. + */ + if (priv->era < 10) { + u32 cha_vid, cha_inst, aes_rn; + + cha_vid = rd_reg32(&priv->ctrl->perfmon.cha_id_ls); + aes_vid = cha_vid & CHA_ID_LS_AES_MASK; + md_vid = (cha_vid & CHA_ID_LS_MD_MASK) >> CHA_ID_LS_MD_SHIFT; + + cha_inst = rd_reg32(&priv->ctrl->perfmon.cha_num_ls); + des_inst = (cha_inst & CHA_ID_LS_DES_MASK) >> + CHA_ID_LS_DES_SHIFT; + aes_inst = cha_inst & CHA_ID_LS_AES_MASK; + md_inst = (cha_inst & CHA_ID_LS_MD_MASK) >> CHA_ID_LS_MD_SHIFT; + ccha_inst = 0; + ptha_inst = 0; + + aes_rn = rd_reg32(&priv->ctrl->perfmon.cha_rev_ls) & + CHA_ID_LS_AES_MASK; + gcm_support = !(aes_vid == CHA_VER_VID_AES_LP && aes_rn < 8); + } else { + u32 aesa, mdha; + + aesa = rd_reg32(&priv->ctrl->vreg.aesa); + mdha = rd_reg32(&priv->ctrl->vreg.mdha); + + aes_vid = (aesa & CHA_VER_VID_MASK) >> CHA_VER_VID_SHIFT; + md_vid = (mdha & CHA_VER_VID_MASK) >> CHA_VER_VID_SHIFT; + + des_inst = rd_reg32(&priv->ctrl->vreg.desa) & CHA_VER_NUM_MASK; + aes_inst = aesa & CHA_VER_NUM_MASK; + md_inst = mdha & CHA_VER_NUM_MASK; + ccha_inst = rd_reg32(&priv->ctrl->vreg.ccha) & CHA_VER_NUM_MASK; + ptha_inst = rd_reg32(&priv->ctrl->vreg.ptha) & CHA_VER_NUM_MASK; + + gcm_support = aesa & CHA_VER_MISC_AES_GCM; + } + + /* If MD is present, limit digest size based on LP256 */ + if (md_inst && md_vid == CHA_VER_VID_MD_LP256) + md_limit = SHA256_DIGEST_SIZE; + + for (i = 0; i < ARRAY_SIZE(driver_algs); i++) { + struct caam_skcipher_alg *t_alg = driver_algs + i; + u32 alg_sel = t_alg->caam.class1_alg_type & OP_ALG_ALGSEL_MASK; + + /* Skip DES algorithms if not supported by device */ + if (!des_inst && + ((alg_sel == OP_ALG_ALGSEL_3DES) || + (alg_sel == OP_ALG_ALGSEL_DES))) + continue; + + /* Skip AES algorithms if not supported by device */ + if (!aes_inst && (alg_sel == OP_ALG_ALGSEL_AES)) + continue; + + /* + * Check support for AES modes not available + * on LP devices. + */ + if (aes_vid == CHA_VER_VID_AES_LP && + (t_alg->caam.class1_alg_type & OP_ALG_AAI_MASK) == + OP_ALG_AAI_XTS) + continue; + + caam_skcipher_alg_init(t_alg); + + err = crypto_register_skcipher(&t_alg->skcipher); + if (err) { + pr_warn("%s alg registration failed\n", + t_alg->skcipher.base.cra_driver_name); + continue; + } + + t_alg->registered = true; + registered = true; + } + + for (i = 0; i < ARRAY_SIZE(driver_aeads); i++) { + struct caam_aead_alg *t_alg = driver_aeads + i; + u32 c1_alg_sel = t_alg->caam.class1_alg_type & + OP_ALG_ALGSEL_MASK; + u32 c2_alg_sel = t_alg->caam.class2_alg_type & + OP_ALG_ALGSEL_MASK; + u32 alg_aai = t_alg->caam.class1_alg_type & OP_ALG_AAI_MASK; + + /* Skip DES algorithms if not supported by device */ + if (!des_inst && + ((c1_alg_sel == OP_ALG_ALGSEL_3DES) || + (c1_alg_sel == OP_ALG_ALGSEL_DES))) + continue; + + /* Skip AES algorithms if not supported by device */ + if (!aes_inst && (c1_alg_sel == OP_ALG_ALGSEL_AES)) + continue; + + /* Skip CHACHA20 algorithms if not supported by device */ + if (c1_alg_sel == OP_ALG_ALGSEL_CHACHA20 && !ccha_inst) + continue; + + /* Skip POLY1305 algorithms if not supported by device */ + if (c2_alg_sel == OP_ALG_ALGSEL_POLY1305 && !ptha_inst) + continue; + + /* Skip GCM algorithms if not supported by device */ + if (c1_alg_sel == OP_ALG_ALGSEL_AES && + alg_aai == OP_ALG_AAI_GCM && !gcm_support) + continue; + + /* + * Skip algorithms requiring message digests + * if MD or MD size is not supported by device. + */ + if (is_mdha(c2_alg_sel) && + (!md_inst || t_alg->aead.maxauthsize > md_limit)) + continue; + + caam_aead_alg_init(t_alg); + + err = crypto_register_aead(&t_alg->aead); + if (err) { + pr_warn("%s alg registration failed\n", + t_alg->aead.base.cra_driver_name); + continue; + } + + t_alg->registered = true; + registered = true; + } + + if (registered) + pr_info("caam algorithms registered in /proc/crypto\n"); + + return err; +} |