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36cda08f98
Associated data (AD) length is read by CAAM from an S/G entry
that is initially filled by the GPP.
Accordingly, AD length has to be stored in CAAM endianness.
Fixes: b189817cf7
("crypto: caam/qi - add ablkcipher and authenc algorithms")
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2426 lines
65 KiB
C
2426 lines
65 KiB
C
/*
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* Freescale FSL CAAM support for crypto API over QI backend.
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* Based on caamalg.c
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*
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* Copyright 2013-2016 Freescale Semiconductor, Inc.
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* Copyright 2016-2017 NXP
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*/
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#include "compat.h"
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#include "regs.h"
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#include "intern.h"
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#include "desc_constr.h"
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#include "error.h"
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#include "sg_sw_sec4.h"
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#include "sg_sw_qm.h"
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#include "key_gen.h"
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#include "qi.h"
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#include "jr.h"
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#include "caamalg_desc.h"
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/*
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* crypto alg
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*/
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#define CAAM_CRA_PRIORITY 2000
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/* max key is sum of AES_MAX_KEY_SIZE, max split key size */
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#define CAAM_MAX_KEY_SIZE (AES_MAX_KEY_SIZE + \
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SHA512_DIGEST_SIZE * 2)
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#define DESC_MAX_USED_BYTES (DESC_QI_AEAD_GIVENC_LEN + \
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CAAM_MAX_KEY_SIZE)
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#define DESC_MAX_USED_LEN (DESC_MAX_USED_BYTES / CAAM_CMD_SZ)
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struct caam_alg_entry {
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int class1_alg_type;
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int class2_alg_type;
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bool rfc3686;
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bool geniv;
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};
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struct caam_aead_alg {
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struct aead_alg aead;
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struct caam_alg_entry caam;
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bool registered;
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};
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/*
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* per-session context
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*/
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struct caam_ctx {
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struct device *jrdev;
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u32 sh_desc_enc[DESC_MAX_USED_LEN];
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u32 sh_desc_dec[DESC_MAX_USED_LEN];
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u32 sh_desc_givenc[DESC_MAX_USED_LEN];
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u8 key[CAAM_MAX_KEY_SIZE];
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dma_addr_t key_dma;
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struct alginfo adata;
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struct alginfo cdata;
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unsigned int authsize;
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struct device *qidev;
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spinlock_t lock; /* Protects multiple init of driver context */
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struct caam_drv_ctx *drv_ctx[NUM_OP];
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};
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static int aead_set_sh_desc(struct crypto_aead *aead)
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{
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struct caam_aead_alg *alg = container_of(crypto_aead_alg(aead),
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typeof(*alg), aead);
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struct caam_ctx *ctx = crypto_aead_ctx(aead);
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unsigned int ivsize = crypto_aead_ivsize(aead);
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u32 ctx1_iv_off = 0;
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u32 *nonce = NULL;
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unsigned int data_len[2];
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u32 inl_mask;
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const bool ctr_mode = ((ctx->cdata.algtype & OP_ALG_AAI_MASK) ==
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OP_ALG_AAI_CTR_MOD128);
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const bool is_rfc3686 = alg->caam.rfc3686;
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if (!ctx->cdata.keylen || !ctx->authsize)
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return 0;
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/*
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* AES-CTR needs to load IV in CONTEXT1 reg
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* at an offset of 128bits (16bytes)
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* CONTEXT1[255:128] = IV
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*/
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if (ctr_mode)
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ctx1_iv_off = 16;
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/*
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* RFC3686 specific:
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* CONTEXT1[255:128] = {NONCE, IV, COUNTER}
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*/
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if (is_rfc3686) {
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ctx1_iv_off = 16 + CTR_RFC3686_NONCE_SIZE;
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nonce = (u32 *)((void *)ctx->key + ctx->adata.keylen_pad +
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ctx->cdata.keylen - CTR_RFC3686_NONCE_SIZE);
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}
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data_len[0] = ctx->adata.keylen_pad;
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data_len[1] = ctx->cdata.keylen;
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if (alg->caam.geniv)
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goto skip_enc;
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/* aead_encrypt shared descriptor */
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if (desc_inline_query(DESC_QI_AEAD_ENC_LEN +
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(is_rfc3686 ? DESC_AEAD_CTR_RFC3686_LEN : 0),
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DESC_JOB_IO_LEN, data_len, &inl_mask,
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ARRAY_SIZE(data_len)) < 0)
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return -EINVAL;
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if (inl_mask & 1)
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ctx->adata.key_virt = ctx->key;
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else
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ctx->adata.key_dma = ctx->key_dma;
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if (inl_mask & 2)
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ctx->cdata.key_virt = ctx->key + ctx->adata.keylen_pad;
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else
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ctx->cdata.key_dma = ctx->key_dma + ctx->adata.keylen_pad;
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ctx->adata.key_inline = !!(inl_mask & 1);
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ctx->cdata.key_inline = !!(inl_mask & 2);
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cnstr_shdsc_aead_encap(ctx->sh_desc_enc, &ctx->cdata, &ctx->adata,
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ivsize, ctx->authsize, is_rfc3686, nonce,
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ctx1_iv_off, true);
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skip_enc:
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/* aead_decrypt shared descriptor */
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if (desc_inline_query(DESC_QI_AEAD_DEC_LEN +
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(is_rfc3686 ? DESC_AEAD_CTR_RFC3686_LEN : 0),
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DESC_JOB_IO_LEN, data_len, &inl_mask,
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ARRAY_SIZE(data_len)) < 0)
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return -EINVAL;
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if (inl_mask & 1)
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ctx->adata.key_virt = ctx->key;
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else
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ctx->adata.key_dma = ctx->key_dma;
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if (inl_mask & 2)
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ctx->cdata.key_virt = ctx->key + ctx->adata.keylen_pad;
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else
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ctx->cdata.key_dma = ctx->key_dma + ctx->adata.keylen_pad;
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ctx->adata.key_inline = !!(inl_mask & 1);
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ctx->cdata.key_inline = !!(inl_mask & 2);
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cnstr_shdsc_aead_decap(ctx->sh_desc_dec, &ctx->cdata, &ctx->adata,
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ivsize, ctx->authsize, alg->caam.geniv,
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is_rfc3686, nonce, ctx1_iv_off, true);
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if (!alg->caam.geniv)
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goto skip_givenc;
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/* aead_givencrypt shared descriptor */
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if (desc_inline_query(DESC_QI_AEAD_GIVENC_LEN +
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(is_rfc3686 ? DESC_AEAD_CTR_RFC3686_LEN : 0),
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DESC_JOB_IO_LEN, data_len, &inl_mask,
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ARRAY_SIZE(data_len)) < 0)
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return -EINVAL;
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if (inl_mask & 1)
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ctx->adata.key_virt = ctx->key;
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else
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ctx->adata.key_dma = ctx->key_dma;
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if (inl_mask & 2)
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ctx->cdata.key_virt = ctx->key + ctx->adata.keylen_pad;
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else
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ctx->cdata.key_dma = ctx->key_dma + ctx->adata.keylen_pad;
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ctx->adata.key_inline = !!(inl_mask & 1);
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ctx->cdata.key_inline = !!(inl_mask & 2);
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cnstr_shdsc_aead_givencap(ctx->sh_desc_enc, &ctx->cdata, &ctx->adata,
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ivsize, ctx->authsize, is_rfc3686, nonce,
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ctx1_iv_off, true);
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skip_givenc:
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return 0;
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}
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static int aead_setauthsize(struct crypto_aead *authenc, unsigned int authsize)
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{
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struct caam_ctx *ctx = crypto_aead_ctx(authenc);
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ctx->authsize = authsize;
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aead_set_sh_desc(authenc);
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return 0;
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}
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static int aead_setkey(struct crypto_aead *aead, const u8 *key,
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unsigned int keylen)
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{
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struct caam_ctx *ctx = crypto_aead_ctx(aead);
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struct device *jrdev = ctx->jrdev;
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struct crypto_authenc_keys keys;
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int ret = 0;
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if (crypto_authenc_extractkeys(&keys, key, keylen) != 0)
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goto badkey;
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#ifdef DEBUG
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dev_err(jrdev, "keylen %d enckeylen %d authkeylen %d\n",
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keys.authkeylen + keys.enckeylen, keys.enckeylen,
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keys.authkeylen);
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print_hex_dump(KERN_ERR, "key in @" __stringify(__LINE__)": ",
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DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1);
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#endif
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ret = gen_split_key(jrdev, ctx->key, &ctx->adata, keys.authkey,
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keys.authkeylen, CAAM_MAX_KEY_SIZE -
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keys.enckeylen);
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if (ret)
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goto badkey;
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/* postpend encryption key to auth split key */
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memcpy(ctx->key + ctx->adata.keylen_pad, keys.enckey, keys.enckeylen);
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dma_sync_single_for_device(jrdev, ctx->key_dma, ctx->adata.keylen_pad +
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keys.enckeylen, DMA_TO_DEVICE);
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#ifdef DEBUG
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print_hex_dump(KERN_ERR, "ctx.key@" __stringify(__LINE__)": ",
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DUMP_PREFIX_ADDRESS, 16, 4, ctx->key,
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ctx->adata.keylen_pad + keys.enckeylen, 1);
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#endif
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ctx->cdata.keylen = keys.enckeylen;
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ret = aead_set_sh_desc(aead);
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if (ret)
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goto badkey;
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/* Now update the driver contexts with the new shared descriptor */
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if (ctx->drv_ctx[ENCRYPT]) {
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ret = caam_drv_ctx_update(ctx->drv_ctx[ENCRYPT],
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ctx->sh_desc_enc);
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if (ret) {
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dev_err(jrdev, "driver enc context update failed\n");
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goto badkey;
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}
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}
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if (ctx->drv_ctx[DECRYPT]) {
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ret = caam_drv_ctx_update(ctx->drv_ctx[DECRYPT],
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ctx->sh_desc_dec);
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if (ret) {
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dev_err(jrdev, "driver dec context update failed\n");
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goto badkey;
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}
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}
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return ret;
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badkey:
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crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN);
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return -EINVAL;
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}
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static int ablkcipher_setkey(struct crypto_ablkcipher *ablkcipher,
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const u8 *key, unsigned int keylen)
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{
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struct caam_ctx *ctx = crypto_ablkcipher_ctx(ablkcipher);
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struct crypto_tfm *tfm = crypto_ablkcipher_tfm(ablkcipher);
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const char *alg_name = crypto_tfm_alg_name(tfm);
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struct device *jrdev = ctx->jrdev;
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unsigned int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
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u32 ctx1_iv_off = 0;
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const bool ctr_mode = ((ctx->cdata.algtype & OP_ALG_AAI_MASK) ==
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OP_ALG_AAI_CTR_MOD128);
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const bool is_rfc3686 = (ctr_mode && strstr(alg_name, "rfc3686"));
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int ret = 0;
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memcpy(ctx->key, key, keylen);
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#ifdef DEBUG
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print_hex_dump(KERN_ERR, "key in @" __stringify(__LINE__)": ",
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DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1);
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#endif
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/*
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* AES-CTR needs to load IV in CONTEXT1 reg
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* at an offset of 128bits (16bytes)
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* CONTEXT1[255:128] = IV
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*/
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if (ctr_mode)
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ctx1_iv_off = 16;
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/*
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* RFC3686 specific:
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* | CONTEXT1[255:128] = {NONCE, IV, COUNTER}
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* | *key = {KEY, NONCE}
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*/
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if (is_rfc3686) {
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ctx1_iv_off = 16 + CTR_RFC3686_NONCE_SIZE;
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keylen -= CTR_RFC3686_NONCE_SIZE;
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}
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dma_sync_single_for_device(jrdev, ctx->key_dma, keylen, DMA_TO_DEVICE);
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ctx->cdata.keylen = keylen;
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ctx->cdata.key_virt = ctx->key;
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ctx->cdata.key_inline = true;
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/* ablkcipher encrypt, decrypt, givencrypt shared descriptors */
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cnstr_shdsc_ablkcipher_encap(ctx->sh_desc_enc, &ctx->cdata, ivsize,
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is_rfc3686, ctx1_iv_off);
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cnstr_shdsc_ablkcipher_decap(ctx->sh_desc_dec, &ctx->cdata, ivsize,
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is_rfc3686, ctx1_iv_off);
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cnstr_shdsc_ablkcipher_givencap(ctx->sh_desc_givenc, &ctx->cdata,
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ivsize, is_rfc3686, ctx1_iv_off);
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/* Now update the driver contexts with the new shared descriptor */
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if (ctx->drv_ctx[ENCRYPT]) {
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ret = caam_drv_ctx_update(ctx->drv_ctx[ENCRYPT],
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ctx->sh_desc_enc);
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if (ret) {
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dev_err(jrdev, "driver enc context update failed\n");
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goto badkey;
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}
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}
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if (ctx->drv_ctx[DECRYPT]) {
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ret = caam_drv_ctx_update(ctx->drv_ctx[DECRYPT],
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ctx->sh_desc_dec);
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if (ret) {
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dev_err(jrdev, "driver dec context update failed\n");
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goto badkey;
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}
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}
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if (ctx->drv_ctx[GIVENCRYPT]) {
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ret = caam_drv_ctx_update(ctx->drv_ctx[GIVENCRYPT],
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ctx->sh_desc_givenc);
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if (ret) {
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dev_err(jrdev, "driver givenc context update failed\n");
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goto badkey;
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}
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}
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return ret;
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badkey:
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crypto_ablkcipher_set_flags(ablkcipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
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return -EINVAL;
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}
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static int xts_ablkcipher_setkey(struct crypto_ablkcipher *ablkcipher,
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const u8 *key, unsigned int keylen)
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{
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struct caam_ctx *ctx = crypto_ablkcipher_ctx(ablkcipher);
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struct device *jrdev = ctx->jrdev;
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int ret = 0;
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if (keylen != 2 * AES_MIN_KEY_SIZE && keylen != 2 * AES_MAX_KEY_SIZE) {
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crypto_ablkcipher_set_flags(ablkcipher,
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CRYPTO_TFM_RES_BAD_KEY_LEN);
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dev_err(jrdev, "key size mismatch\n");
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return -EINVAL;
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}
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memcpy(ctx->key, key, keylen);
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dma_sync_single_for_device(jrdev, ctx->key_dma, keylen, DMA_TO_DEVICE);
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ctx->cdata.keylen = keylen;
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ctx->cdata.key_virt = ctx->key;
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ctx->cdata.key_inline = true;
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/* xts ablkcipher encrypt, decrypt shared descriptors */
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cnstr_shdsc_xts_ablkcipher_encap(ctx->sh_desc_enc, &ctx->cdata);
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cnstr_shdsc_xts_ablkcipher_decap(ctx->sh_desc_dec, &ctx->cdata);
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/* Now update the driver contexts with the new shared descriptor */
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if (ctx->drv_ctx[ENCRYPT]) {
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ret = caam_drv_ctx_update(ctx->drv_ctx[ENCRYPT],
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ctx->sh_desc_enc);
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if (ret) {
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dev_err(jrdev, "driver enc context update failed\n");
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goto badkey;
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}
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}
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if (ctx->drv_ctx[DECRYPT]) {
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ret = caam_drv_ctx_update(ctx->drv_ctx[DECRYPT],
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ctx->sh_desc_dec);
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if (ret) {
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dev_err(jrdev, "driver dec context update failed\n");
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goto badkey;
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}
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}
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return ret;
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badkey:
|
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crypto_ablkcipher_set_flags(ablkcipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
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return 0;
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}
|
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|
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/*
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* aead_edesc - s/w-extended aead descriptor
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* @src_nents: number of segments in input scatterlist
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* @dst_nents: number of segments in output scatterlist
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* @iv_dma: dma address of iv for checking continuity and link table
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* @qm_sg_bytes: length of dma mapped h/w link table
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* @qm_sg_dma: bus physical mapped address of h/w link table
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* @assoclen: associated data length, in CAAM endianness
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* @assoclen_dma: bus physical mapped address of req->assoclen
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* @drv_req: driver-specific request structure
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* @sgt: the h/w link table
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*/
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struct aead_edesc {
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int src_nents;
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int dst_nents;
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dma_addr_t iv_dma;
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int qm_sg_bytes;
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dma_addr_t qm_sg_dma;
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unsigned int assoclen;
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dma_addr_t assoclen_dma;
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struct caam_drv_req drv_req;
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#define CAAM_QI_MAX_AEAD_SG \
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((CAAM_QI_MEMCACHE_SIZE - offsetof(struct aead_edesc, sgt)) / \
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sizeof(struct qm_sg_entry))
|
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struct qm_sg_entry sgt[0];
|
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};
|
|
|
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/*
|
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* ablkcipher_edesc - s/w-extended ablkcipher descriptor
|
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* @src_nents: number of segments in input scatterlist
|
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* @dst_nents: number of segments in output scatterlist
|
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* @iv_dma: dma address of iv for checking continuity and link table
|
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* @qm_sg_bytes: length of dma mapped h/w link table
|
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* @qm_sg_dma: bus physical mapped address of h/w link table
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* @drv_req: driver-specific request structure
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* @sgt: the h/w link table
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*/
|
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struct ablkcipher_edesc {
|
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int src_nents;
|
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int dst_nents;
|
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dma_addr_t iv_dma;
|
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int qm_sg_bytes;
|
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dma_addr_t qm_sg_dma;
|
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struct caam_drv_req drv_req;
|
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#define CAAM_QI_MAX_ABLKCIPHER_SG \
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((CAAM_QI_MEMCACHE_SIZE - offsetof(struct ablkcipher_edesc, sgt)) / \
|
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sizeof(struct qm_sg_entry))
|
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struct qm_sg_entry sgt[0];
|
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};
|
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|
|
static struct caam_drv_ctx *get_drv_ctx(struct caam_ctx *ctx,
|
|
enum optype type)
|
|
{
|
|
/*
|
|
* This function is called on the fast path with values of 'type'
|
|
* known at compile time. Invalid arguments are not expected and
|
|
* thus no checks are made.
|
|
*/
|
|
struct caam_drv_ctx *drv_ctx = ctx->drv_ctx[type];
|
|
u32 *desc;
|
|
|
|
if (unlikely(!drv_ctx)) {
|
|
spin_lock(&ctx->lock);
|
|
|
|
/* Read again to check if some other core init drv_ctx */
|
|
drv_ctx = ctx->drv_ctx[type];
|
|
if (!drv_ctx) {
|
|
int cpu;
|
|
|
|
if (type == ENCRYPT)
|
|
desc = ctx->sh_desc_enc;
|
|
else if (type == DECRYPT)
|
|
desc = ctx->sh_desc_dec;
|
|
else /* (type == GIVENCRYPT) */
|
|
desc = ctx->sh_desc_givenc;
|
|
|
|
cpu = smp_processor_id();
|
|
drv_ctx = caam_drv_ctx_init(ctx->qidev, &cpu, desc);
|
|
if (likely(!IS_ERR_OR_NULL(drv_ctx)))
|
|
drv_ctx->op_type = type;
|
|
|
|
ctx->drv_ctx[type] = drv_ctx;
|
|
}
|
|
|
|
spin_unlock(&ctx->lock);
|
|
}
|
|
|
|
return drv_ctx;
|
|
}
|
|
|
|
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,
|
|
enum optype op_type, dma_addr_t qm_sg_dma,
|
|
int qm_sg_bytes)
|
|
{
|
|
if (dst != src) {
|
|
if (src_nents)
|
|
dma_unmap_sg(dev, src, src_nents, DMA_TO_DEVICE);
|
|
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,
|
|
op_type == GIVENCRYPT ? DMA_FROM_DEVICE :
|
|
DMA_TO_DEVICE);
|
|
if (qm_sg_bytes)
|
|
dma_unmap_single(dev, qm_sg_dma, qm_sg_bytes, DMA_TO_DEVICE);
|
|
}
|
|
|
|
static void aead_unmap(struct device *dev,
|
|
struct aead_edesc *edesc,
|
|
struct aead_request *req)
|
|
{
|
|
struct crypto_aead *aead = crypto_aead_reqtfm(req);
|
|
int ivsize = crypto_aead_ivsize(aead);
|
|
|
|
caam_unmap(dev, req->src, req->dst, edesc->src_nents, edesc->dst_nents,
|
|
edesc->iv_dma, ivsize, edesc->drv_req.drv_ctx->op_type,
|
|
edesc->qm_sg_dma, edesc->qm_sg_bytes);
|
|
dma_unmap_single(dev, edesc->assoclen_dma, 4, DMA_TO_DEVICE);
|
|
}
|
|
|
|
static void ablkcipher_unmap(struct device *dev,
|
|
struct ablkcipher_edesc *edesc,
|
|
struct ablkcipher_request *req)
|
|
{
|
|
struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
|
|
int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
|
|
|
|
caam_unmap(dev, req->src, req->dst, edesc->src_nents, edesc->dst_nents,
|
|
edesc->iv_dma, ivsize, edesc->drv_req.drv_ctx->op_type,
|
|
edesc->qm_sg_dma, edesc->qm_sg_bytes);
|
|
}
|
|
|
|
static void aead_done(struct caam_drv_req *drv_req, u32 status)
|
|
{
|
|
struct device *qidev;
|
|
struct aead_edesc *edesc;
|
|
struct aead_request *aead_req = drv_req->app_ctx;
|
|
struct crypto_aead *aead = crypto_aead_reqtfm(aead_req);
|
|
struct caam_ctx *caam_ctx = crypto_aead_ctx(aead);
|
|
int ecode = 0;
|
|
|
|
qidev = caam_ctx->qidev;
|
|
|
|
if (unlikely(status)) {
|
|
caam_jr_strstatus(qidev, status);
|
|
ecode = -EIO;
|
|
}
|
|
|
|
edesc = container_of(drv_req, typeof(*edesc), drv_req);
|
|
aead_unmap(qidev, edesc, aead_req);
|
|
|
|
aead_request_complete(aead_req, ecode);
|
|
qi_cache_free(edesc);
|
|
}
|
|
|
|
/*
|
|
* allocate and map the aead extended descriptor
|
|
*/
|
|
static struct aead_edesc *aead_edesc_alloc(struct aead_request *req,
|
|
bool encrypt)
|
|
{
|
|
struct crypto_aead *aead = crypto_aead_reqtfm(req);
|
|
struct caam_ctx *ctx = crypto_aead_ctx(aead);
|
|
struct caam_aead_alg *alg = container_of(crypto_aead_alg(aead),
|
|
typeof(*alg), aead);
|
|
struct device *qidev = ctx->qidev;
|
|
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 aead_edesc *edesc;
|
|
dma_addr_t qm_sg_dma, iv_dma = 0;
|
|
int ivsize = 0;
|
|
unsigned int authsize = ctx->authsize;
|
|
int qm_sg_index = 0, qm_sg_ents = 0, qm_sg_bytes;
|
|
int in_len, out_len;
|
|
struct qm_sg_entry *sg_table, *fd_sgt;
|
|
struct caam_drv_ctx *drv_ctx;
|
|
enum optype op_type = encrypt ? ENCRYPT : DECRYPT;
|
|
|
|
drv_ctx = get_drv_ctx(ctx, op_type);
|
|
if (unlikely(IS_ERR_OR_NULL(drv_ctx)))
|
|
return (struct aead_edesc *)drv_ctx;
|
|
|
|
/* allocate space for base edesc and hw desc commands, link tables */
|
|
edesc = qi_cache_alloc(GFP_DMA | flags);
|
|
if (unlikely(!edesc)) {
|
|
dev_err(qidev, "could not allocate extended descriptor\n");
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
if (likely(req->src == req->dst)) {
|
|
src_nents = sg_nents_for_len(req->src, req->assoclen +
|
|
req->cryptlen +
|
|
(encrypt ? authsize : 0));
|
|
if (unlikely(src_nents < 0)) {
|
|
dev_err(qidev, "Insufficient bytes (%d) in src S/G\n",
|
|
req->assoclen + req->cryptlen +
|
|
(encrypt ? authsize : 0));
|
|
qi_cache_free(edesc);
|
|
return ERR_PTR(src_nents);
|
|
}
|
|
|
|
mapped_src_nents = dma_map_sg(qidev, req->src, src_nents,
|
|
DMA_BIDIRECTIONAL);
|
|
if (unlikely(!mapped_src_nents)) {
|
|
dev_err(qidev, "unable to map source\n");
|
|
qi_cache_free(edesc);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
} else {
|
|
src_nents = sg_nents_for_len(req->src, req->assoclen +
|
|
req->cryptlen);
|
|
if (unlikely(src_nents < 0)) {
|
|
dev_err(qidev, "Insufficient bytes (%d) in src S/G\n",
|
|
req->assoclen + req->cryptlen);
|
|
qi_cache_free(edesc);
|
|
return ERR_PTR(src_nents);
|
|
}
|
|
|
|
dst_nents = sg_nents_for_len(req->dst, req->assoclen +
|
|
req->cryptlen +
|
|
(encrypt ? authsize :
|
|
(-authsize)));
|
|
if (unlikely(dst_nents < 0)) {
|
|
dev_err(qidev, "Insufficient bytes (%d) in dst S/G\n",
|
|
req->assoclen + req->cryptlen +
|
|
(encrypt ? authsize : (-authsize)));
|
|
qi_cache_free(edesc);
|
|
return ERR_PTR(dst_nents);
|
|
}
|
|
|
|
if (src_nents) {
|
|
mapped_src_nents = dma_map_sg(qidev, req->src,
|
|
src_nents, DMA_TO_DEVICE);
|
|
if (unlikely(!mapped_src_nents)) {
|
|
dev_err(qidev, "unable to map source\n");
|
|
qi_cache_free(edesc);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
} else {
|
|
mapped_src_nents = 0;
|
|
}
|
|
|
|
mapped_dst_nents = dma_map_sg(qidev, req->dst, dst_nents,
|
|
DMA_FROM_DEVICE);
|
|
if (unlikely(!mapped_dst_nents)) {
|
|
dev_err(qidev, "unable to map destination\n");
|
|
dma_unmap_sg(qidev, req->src, src_nents, DMA_TO_DEVICE);
|
|
qi_cache_free(edesc);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
}
|
|
|
|
if ((alg->caam.rfc3686 && encrypt) || !alg->caam.geniv) {
|
|
ivsize = crypto_aead_ivsize(aead);
|
|
iv_dma = dma_map_single(qidev, req->iv, ivsize, DMA_TO_DEVICE);
|
|
if (dma_mapping_error(qidev, iv_dma)) {
|
|
dev_err(qidev, "unable to map IV\n");
|
|
caam_unmap(qidev, req->src, req->dst, src_nents,
|
|
dst_nents, 0, 0, op_type, 0, 0);
|
|
qi_cache_free(edesc);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Create S/G table: req->assoclen, [IV,] req->src [, req->dst].
|
|
* Input is not contiguous.
|
|
*/
|
|
qm_sg_ents = 1 + !!ivsize + mapped_src_nents +
|
|
(mapped_dst_nents > 1 ? mapped_dst_nents : 0);
|
|
if (unlikely(qm_sg_ents > CAAM_QI_MAX_AEAD_SG)) {
|
|
dev_err(qidev, "Insufficient S/G entries: %d > %lu\n",
|
|
qm_sg_ents, CAAM_QI_MAX_AEAD_SG);
|
|
caam_unmap(qidev, req->src, req->dst, src_nents, dst_nents,
|
|
iv_dma, ivsize, op_type, 0, 0);
|
|
qi_cache_free(edesc);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
sg_table = &edesc->sgt[0];
|
|
qm_sg_bytes = qm_sg_ents * sizeof(*sg_table);
|
|
|
|
edesc->src_nents = src_nents;
|
|
edesc->dst_nents = dst_nents;
|
|
edesc->iv_dma = iv_dma;
|
|
edesc->drv_req.app_ctx = req;
|
|
edesc->drv_req.cbk = aead_done;
|
|
edesc->drv_req.drv_ctx = drv_ctx;
|
|
|
|
edesc->assoclen = cpu_to_caam32(req->assoclen);
|
|
edesc->assoclen_dma = dma_map_single(qidev, &edesc->assoclen, 4,
|
|
DMA_TO_DEVICE);
|
|
if (dma_mapping_error(qidev, edesc->assoclen_dma)) {
|
|
dev_err(qidev, "unable to map assoclen\n");
|
|
caam_unmap(qidev, req->src, req->dst, src_nents, dst_nents,
|
|
iv_dma, ivsize, op_type, 0, 0);
|
|
qi_cache_free(edesc);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
dma_to_qm_sg_one(sg_table, edesc->assoclen_dma, 4, 0);
|
|
qm_sg_index++;
|
|
if (ivsize) {
|
|
dma_to_qm_sg_one(sg_table + qm_sg_index, iv_dma, ivsize, 0);
|
|
qm_sg_index++;
|
|
}
|
|
sg_to_qm_sg_last(req->src, mapped_src_nents, sg_table + qm_sg_index, 0);
|
|
qm_sg_index += mapped_src_nents;
|
|
|
|
if (mapped_dst_nents > 1)
|
|
sg_to_qm_sg_last(req->dst, mapped_dst_nents, sg_table +
|
|
qm_sg_index, 0);
|
|
|
|
qm_sg_dma = dma_map_single(qidev, sg_table, qm_sg_bytes, DMA_TO_DEVICE);
|
|
if (dma_mapping_error(qidev, qm_sg_dma)) {
|
|
dev_err(qidev, "unable to map S/G table\n");
|
|
dma_unmap_single(qidev, edesc->assoclen_dma, 4, DMA_TO_DEVICE);
|
|
caam_unmap(qidev, req->src, req->dst, src_nents, dst_nents,
|
|
iv_dma, ivsize, op_type, 0, 0);
|
|
qi_cache_free(edesc);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
edesc->qm_sg_dma = qm_sg_dma;
|
|
edesc->qm_sg_bytes = qm_sg_bytes;
|
|
|
|
out_len = req->assoclen + req->cryptlen +
|
|
(encrypt ? ctx->authsize : (-ctx->authsize));
|
|
in_len = 4 + ivsize + req->assoclen + req->cryptlen;
|
|
|
|
fd_sgt = &edesc->drv_req.fd_sgt[0];
|
|
dma_to_qm_sg_one_last_ext(&fd_sgt[1], qm_sg_dma, in_len, 0);
|
|
|
|
if (req->dst == req->src) {
|
|
if (mapped_src_nents == 1)
|
|
dma_to_qm_sg_one(&fd_sgt[0], sg_dma_address(req->src),
|
|
out_len, 0);
|
|
else
|
|
dma_to_qm_sg_one_ext(&fd_sgt[0], qm_sg_dma +
|
|
(1 + !!ivsize) * sizeof(*sg_table),
|
|
out_len, 0);
|
|
} else if (mapped_dst_nents == 1) {
|
|
dma_to_qm_sg_one(&fd_sgt[0], sg_dma_address(req->dst), out_len,
|
|
0);
|
|
} else {
|
|
dma_to_qm_sg_one_ext(&fd_sgt[0], qm_sg_dma + sizeof(*sg_table) *
|
|
qm_sg_index, out_len, 0);
|
|
}
|
|
|
|
return edesc;
|
|
}
|
|
|
|
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);
|
|
int ret;
|
|
|
|
if (unlikely(caam_congested))
|
|
return -EAGAIN;
|
|
|
|
/* allocate extended descriptor */
|
|
edesc = aead_edesc_alloc(req, encrypt);
|
|
if (IS_ERR_OR_NULL(edesc))
|
|
return PTR_ERR(edesc);
|
|
|
|
/* Create and submit job descriptor */
|
|
ret = caam_qi_enqueue(ctx->qidev, &edesc->drv_req);
|
|
if (!ret) {
|
|
ret = -EINPROGRESS;
|
|
} else {
|
|
aead_unmap(ctx->qidev, edesc, req);
|
|
qi_cache_free(edesc);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
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 void ablkcipher_done(struct caam_drv_req *drv_req, u32 status)
|
|
{
|
|
struct ablkcipher_edesc *edesc;
|
|
struct ablkcipher_request *req = drv_req->app_ctx;
|
|
struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
|
|
struct caam_ctx *caam_ctx = crypto_ablkcipher_ctx(ablkcipher);
|
|
struct device *qidev = caam_ctx->qidev;
|
|
int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
|
|
|
|
#ifdef DEBUG
|
|
dev_err(qidev, "%s %d: status 0x%x\n", __func__, __LINE__, status);
|
|
#endif
|
|
|
|
edesc = container_of(drv_req, typeof(*edesc), drv_req);
|
|
|
|
if (status)
|
|
caam_jr_strstatus(qidev, status);
|
|
|
|
#ifdef DEBUG
|
|
print_hex_dump(KERN_ERR, "dstiv @" __stringify(__LINE__)": ",
|
|
DUMP_PREFIX_ADDRESS, 16, 4, req->info,
|
|
edesc->src_nents > 1 ? 100 : ivsize, 1);
|
|
caam_dump_sg(KERN_ERR, "dst @" __stringify(__LINE__)": ",
|
|
DUMP_PREFIX_ADDRESS, 16, 4, req->dst,
|
|
edesc->dst_nents > 1 ? 100 : req->nbytes, 1);
|
|
#endif
|
|
|
|
ablkcipher_unmap(qidev, edesc, req);
|
|
qi_cache_free(edesc);
|
|
|
|
/*
|
|
* The crypto API expects us to set the IV (req->info) to the last
|
|
* ciphertext block. This is used e.g. by the CTS mode.
|
|
*/
|
|
scatterwalk_map_and_copy(req->info, req->dst, req->nbytes - ivsize,
|
|
ivsize, 0);
|
|
|
|
ablkcipher_request_complete(req, status);
|
|
}
|
|
|
|
static struct ablkcipher_edesc *ablkcipher_edesc_alloc(struct ablkcipher_request
|
|
*req, bool encrypt)
|
|
{
|
|
struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
|
|
struct caam_ctx *ctx = crypto_ablkcipher_ctx(ablkcipher);
|
|
struct device *qidev = ctx->qidev;
|
|
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 ablkcipher_edesc *edesc;
|
|
dma_addr_t iv_dma;
|
|
bool in_contig;
|
|
int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
|
|
int dst_sg_idx, qm_sg_ents;
|
|
struct qm_sg_entry *sg_table, *fd_sgt;
|
|
struct caam_drv_ctx *drv_ctx;
|
|
enum optype op_type = encrypt ? ENCRYPT : DECRYPT;
|
|
|
|
drv_ctx = get_drv_ctx(ctx, op_type);
|
|
if (unlikely(IS_ERR_OR_NULL(drv_ctx)))
|
|
return (struct ablkcipher_edesc *)drv_ctx;
|
|
|
|
src_nents = sg_nents_for_len(req->src, req->nbytes);
|
|
if (unlikely(src_nents < 0)) {
|
|
dev_err(qidev, "Insufficient bytes (%d) in src S/G\n",
|
|
req->nbytes);
|
|
return ERR_PTR(src_nents);
|
|
}
|
|
|
|
if (unlikely(req->src != req->dst)) {
|
|
dst_nents = sg_nents_for_len(req->dst, req->nbytes);
|
|
if (unlikely(dst_nents < 0)) {
|
|
dev_err(qidev, "Insufficient bytes (%d) in dst S/G\n",
|
|
req->nbytes);
|
|
return ERR_PTR(dst_nents);
|
|
}
|
|
|
|
mapped_src_nents = dma_map_sg(qidev, req->src, src_nents,
|
|
DMA_TO_DEVICE);
|
|
if (unlikely(!mapped_src_nents)) {
|
|
dev_err(qidev, "unable to map source\n");
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
mapped_dst_nents = dma_map_sg(qidev, req->dst, dst_nents,
|
|
DMA_FROM_DEVICE);
|
|
if (unlikely(!mapped_dst_nents)) {
|
|
dev_err(qidev, "unable to map destination\n");
|
|
dma_unmap_sg(qidev, req->src, src_nents, DMA_TO_DEVICE);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
} else {
|
|
mapped_src_nents = dma_map_sg(qidev, req->src, src_nents,
|
|
DMA_BIDIRECTIONAL);
|
|
if (unlikely(!mapped_src_nents)) {
|
|
dev_err(qidev, "unable to map source\n");
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
}
|
|
|
|
iv_dma = dma_map_single(qidev, req->info, ivsize, DMA_TO_DEVICE);
|
|
if (dma_mapping_error(qidev, iv_dma)) {
|
|
dev_err(qidev, "unable to map IV\n");
|
|
caam_unmap(qidev, req->src, req->dst, src_nents, dst_nents, 0,
|
|
0, 0, 0, 0);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
if (mapped_src_nents == 1 &&
|
|
iv_dma + ivsize == sg_dma_address(req->src)) {
|
|
in_contig = true;
|
|
qm_sg_ents = 0;
|
|
} else {
|
|
in_contig = false;
|
|
qm_sg_ents = 1 + mapped_src_nents;
|
|
}
|
|
dst_sg_idx = qm_sg_ents;
|
|
|
|
qm_sg_ents += mapped_dst_nents > 1 ? mapped_dst_nents : 0;
|
|
if (unlikely(qm_sg_ents > CAAM_QI_MAX_ABLKCIPHER_SG)) {
|
|
dev_err(qidev, "Insufficient S/G entries: %d > %lu\n",
|
|
qm_sg_ents, CAAM_QI_MAX_ABLKCIPHER_SG);
|
|
caam_unmap(qidev, req->src, req->dst, src_nents, dst_nents,
|
|
iv_dma, ivsize, op_type, 0, 0);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
/* allocate space for base edesc and link tables */
|
|
edesc = qi_cache_alloc(GFP_DMA | flags);
|
|
if (unlikely(!edesc)) {
|
|
dev_err(qidev, "could not allocate extended descriptor\n");
|
|
caam_unmap(qidev, req->src, req->dst, src_nents, dst_nents,
|
|
iv_dma, ivsize, op_type, 0, 0);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
edesc->src_nents = src_nents;
|
|
edesc->dst_nents = dst_nents;
|
|
edesc->iv_dma = iv_dma;
|
|
sg_table = &edesc->sgt[0];
|
|
edesc->qm_sg_bytes = qm_sg_ents * sizeof(*sg_table);
|
|
edesc->drv_req.app_ctx = req;
|
|
edesc->drv_req.cbk = ablkcipher_done;
|
|
edesc->drv_req.drv_ctx = drv_ctx;
|
|
|
|
if (!in_contig) {
|
|
dma_to_qm_sg_one(sg_table, iv_dma, ivsize, 0);
|
|
sg_to_qm_sg_last(req->src, mapped_src_nents, sg_table + 1, 0);
|
|
}
|
|
|
|
if (mapped_dst_nents > 1)
|
|
sg_to_qm_sg_last(req->dst, mapped_dst_nents, sg_table +
|
|
dst_sg_idx, 0);
|
|
|
|
edesc->qm_sg_dma = dma_map_single(qidev, sg_table, edesc->qm_sg_bytes,
|
|
DMA_TO_DEVICE);
|
|
if (dma_mapping_error(qidev, edesc->qm_sg_dma)) {
|
|
dev_err(qidev, "unable to map S/G table\n");
|
|
caam_unmap(qidev, req->src, req->dst, src_nents, dst_nents,
|
|
iv_dma, ivsize, op_type, 0, 0);
|
|
qi_cache_free(edesc);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
fd_sgt = &edesc->drv_req.fd_sgt[0];
|
|
|
|
if (!in_contig)
|
|
dma_to_qm_sg_one_last_ext(&fd_sgt[1], edesc->qm_sg_dma,
|
|
ivsize + req->nbytes, 0);
|
|
else
|
|
dma_to_qm_sg_one_last(&fd_sgt[1], iv_dma, ivsize + req->nbytes,
|
|
0);
|
|
|
|
if (req->src == req->dst) {
|
|
if (!in_contig)
|
|
dma_to_qm_sg_one_ext(&fd_sgt[0], edesc->qm_sg_dma +
|
|
sizeof(*sg_table), req->nbytes, 0);
|
|
else
|
|
dma_to_qm_sg_one(&fd_sgt[0], sg_dma_address(req->src),
|
|
req->nbytes, 0);
|
|
} else if (mapped_dst_nents > 1) {
|
|
dma_to_qm_sg_one_ext(&fd_sgt[0], edesc->qm_sg_dma + dst_sg_idx *
|
|
sizeof(*sg_table), req->nbytes, 0);
|
|
} else {
|
|
dma_to_qm_sg_one(&fd_sgt[0], sg_dma_address(req->dst),
|
|
req->nbytes, 0);
|
|
}
|
|
|
|
return edesc;
|
|
}
|
|
|
|
static struct ablkcipher_edesc *ablkcipher_giv_edesc_alloc(
|
|
struct skcipher_givcrypt_request *creq)
|
|
{
|
|
struct ablkcipher_request *req = &creq->creq;
|
|
struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
|
|
struct caam_ctx *ctx = crypto_ablkcipher_ctx(ablkcipher);
|
|
struct device *qidev = ctx->qidev;
|
|
gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
|
|
GFP_KERNEL : GFP_ATOMIC;
|
|
int src_nents, mapped_src_nents, dst_nents, mapped_dst_nents;
|
|
struct ablkcipher_edesc *edesc;
|
|
dma_addr_t iv_dma;
|
|
bool out_contig;
|
|
int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
|
|
struct qm_sg_entry *sg_table, *fd_sgt;
|
|
int dst_sg_idx, qm_sg_ents;
|
|
struct caam_drv_ctx *drv_ctx;
|
|
|
|
drv_ctx = get_drv_ctx(ctx, GIVENCRYPT);
|
|
if (unlikely(IS_ERR_OR_NULL(drv_ctx)))
|
|
return (struct ablkcipher_edesc *)drv_ctx;
|
|
|
|
src_nents = sg_nents_for_len(req->src, req->nbytes);
|
|
if (unlikely(src_nents < 0)) {
|
|
dev_err(qidev, "Insufficient bytes (%d) in src S/G\n",
|
|
req->nbytes);
|
|
return ERR_PTR(src_nents);
|
|
}
|
|
|
|
if (unlikely(req->src != req->dst)) {
|
|
dst_nents = sg_nents_for_len(req->dst, req->nbytes);
|
|
if (unlikely(dst_nents < 0)) {
|
|
dev_err(qidev, "Insufficient bytes (%d) in dst S/G\n",
|
|
req->nbytes);
|
|
return ERR_PTR(dst_nents);
|
|
}
|
|
|
|
mapped_src_nents = dma_map_sg(qidev, req->src, src_nents,
|
|
DMA_TO_DEVICE);
|
|
if (unlikely(!mapped_src_nents)) {
|
|
dev_err(qidev, "unable to map source\n");
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
mapped_dst_nents = dma_map_sg(qidev, req->dst, dst_nents,
|
|
DMA_FROM_DEVICE);
|
|
if (unlikely(!mapped_dst_nents)) {
|
|
dev_err(qidev, "unable to map destination\n");
|
|
dma_unmap_sg(qidev, req->src, src_nents, DMA_TO_DEVICE);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
} else {
|
|
mapped_src_nents = dma_map_sg(qidev, req->src, src_nents,
|
|
DMA_BIDIRECTIONAL);
|
|
if (unlikely(!mapped_src_nents)) {
|
|
dev_err(qidev, "unable to map source\n");
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
dst_nents = src_nents;
|
|
mapped_dst_nents = src_nents;
|
|
}
|
|
|
|
iv_dma = dma_map_single(qidev, creq->giv, ivsize, DMA_FROM_DEVICE);
|
|
if (dma_mapping_error(qidev, iv_dma)) {
|
|
dev_err(qidev, "unable to map IV\n");
|
|
caam_unmap(qidev, req->src, req->dst, src_nents, dst_nents, 0,
|
|
0, 0, 0, 0);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
qm_sg_ents = mapped_src_nents > 1 ? mapped_src_nents : 0;
|
|
dst_sg_idx = qm_sg_ents;
|
|
if (mapped_dst_nents == 1 &&
|
|
iv_dma + ivsize == sg_dma_address(req->dst)) {
|
|
out_contig = true;
|
|
} else {
|
|
out_contig = false;
|
|
qm_sg_ents += 1 + mapped_dst_nents;
|
|
}
|
|
|
|
if (unlikely(qm_sg_ents > CAAM_QI_MAX_ABLKCIPHER_SG)) {
|
|
dev_err(qidev, "Insufficient S/G entries: %d > %lu\n",
|
|
qm_sg_ents, CAAM_QI_MAX_ABLKCIPHER_SG);
|
|
caam_unmap(qidev, req->src, req->dst, src_nents, dst_nents,
|
|
iv_dma, ivsize, GIVENCRYPT, 0, 0);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
/* allocate space for base edesc and link tables */
|
|
edesc = qi_cache_alloc(GFP_DMA | flags);
|
|
if (!edesc) {
|
|
dev_err(qidev, "could not allocate extended descriptor\n");
|
|
caam_unmap(qidev, req->src, req->dst, src_nents, dst_nents,
|
|
iv_dma, ivsize, GIVENCRYPT, 0, 0);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
edesc->src_nents = src_nents;
|
|
edesc->dst_nents = dst_nents;
|
|
edesc->iv_dma = iv_dma;
|
|
sg_table = &edesc->sgt[0];
|
|
edesc->qm_sg_bytes = qm_sg_ents * sizeof(*sg_table);
|
|
edesc->drv_req.app_ctx = req;
|
|
edesc->drv_req.cbk = ablkcipher_done;
|
|
edesc->drv_req.drv_ctx = drv_ctx;
|
|
|
|
if (mapped_src_nents > 1)
|
|
sg_to_qm_sg_last(req->src, mapped_src_nents, sg_table, 0);
|
|
|
|
if (!out_contig) {
|
|
dma_to_qm_sg_one(sg_table + dst_sg_idx, iv_dma, ivsize, 0);
|
|
sg_to_qm_sg_last(req->dst, mapped_dst_nents, sg_table +
|
|
dst_sg_idx + 1, 0);
|
|
}
|
|
|
|
edesc->qm_sg_dma = dma_map_single(qidev, sg_table, edesc->qm_sg_bytes,
|
|
DMA_TO_DEVICE);
|
|
if (dma_mapping_error(qidev, edesc->qm_sg_dma)) {
|
|
dev_err(qidev, "unable to map S/G table\n");
|
|
caam_unmap(qidev, req->src, req->dst, src_nents, dst_nents,
|
|
iv_dma, ivsize, GIVENCRYPT, 0, 0);
|
|
qi_cache_free(edesc);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
fd_sgt = &edesc->drv_req.fd_sgt[0];
|
|
|
|
if (mapped_src_nents > 1)
|
|
dma_to_qm_sg_one_ext(&fd_sgt[1], edesc->qm_sg_dma, req->nbytes,
|
|
0);
|
|
else
|
|
dma_to_qm_sg_one(&fd_sgt[1], sg_dma_address(req->src),
|
|
req->nbytes, 0);
|
|
|
|
if (!out_contig)
|
|
dma_to_qm_sg_one_ext(&fd_sgt[0], edesc->qm_sg_dma + dst_sg_idx *
|
|
sizeof(*sg_table), ivsize + req->nbytes,
|
|
0);
|
|
else
|
|
dma_to_qm_sg_one(&fd_sgt[0], sg_dma_address(req->dst),
|
|
ivsize + req->nbytes, 0);
|
|
|
|
return edesc;
|
|
}
|
|
|
|
static inline int ablkcipher_crypt(struct ablkcipher_request *req, bool encrypt)
|
|
{
|
|
struct ablkcipher_edesc *edesc;
|
|
struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
|
|
struct caam_ctx *ctx = crypto_ablkcipher_ctx(ablkcipher);
|
|
int ret;
|
|
|
|
if (unlikely(caam_congested))
|
|
return -EAGAIN;
|
|
|
|
/* allocate extended descriptor */
|
|
edesc = ablkcipher_edesc_alloc(req, encrypt);
|
|
if (IS_ERR(edesc))
|
|
return PTR_ERR(edesc);
|
|
|
|
ret = caam_qi_enqueue(ctx->qidev, &edesc->drv_req);
|
|
if (!ret) {
|
|
ret = -EINPROGRESS;
|
|
} else {
|
|
ablkcipher_unmap(ctx->qidev, edesc, req);
|
|
qi_cache_free(edesc);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ablkcipher_encrypt(struct ablkcipher_request *req)
|
|
{
|
|
return ablkcipher_crypt(req, true);
|
|
}
|
|
|
|
static int ablkcipher_decrypt(struct ablkcipher_request *req)
|
|
{
|
|
return ablkcipher_crypt(req, false);
|
|
}
|
|
|
|
static int ablkcipher_givencrypt(struct skcipher_givcrypt_request *creq)
|
|
{
|
|
struct ablkcipher_request *req = &creq->creq;
|
|
struct ablkcipher_edesc *edesc;
|
|
struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
|
|
struct caam_ctx *ctx = crypto_ablkcipher_ctx(ablkcipher);
|
|
int ret;
|
|
|
|
if (unlikely(caam_congested))
|
|
return -EAGAIN;
|
|
|
|
/* allocate extended descriptor */
|
|
edesc = ablkcipher_giv_edesc_alloc(creq);
|
|
if (IS_ERR(edesc))
|
|
return PTR_ERR(edesc);
|
|
|
|
ret = caam_qi_enqueue(ctx->qidev, &edesc->drv_req);
|
|
if (!ret) {
|
|
ret = -EINPROGRESS;
|
|
} else {
|
|
ablkcipher_unmap(ctx->qidev, edesc, req);
|
|
qi_cache_free(edesc);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#define template_ablkcipher template_u.ablkcipher
|
|
struct caam_alg_template {
|
|
char name[CRYPTO_MAX_ALG_NAME];
|
|
char driver_name[CRYPTO_MAX_ALG_NAME];
|
|
unsigned int blocksize;
|
|
u32 type;
|
|
union {
|
|
struct ablkcipher_alg ablkcipher;
|
|
} template_u;
|
|
u32 class1_alg_type;
|
|
u32 class2_alg_type;
|
|
};
|
|
|
|
static struct caam_alg_template driver_algs[] = {
|
|
/* ablkcipher descriptor */
|
|
{
|
|
.name = "cbc(aes)",
|
|
.driver_name = "cbc-aes-caam-qi",
|
|
.blocksize = AES_BLOCK_SIZE,
|
|
.type = CRYPTO_ALG_TYPE_GIVCIPHER,
|
|
.template_ablkcipher = {
|
|
.setkey = ablkcipher_setkey,
|
|
.encrypt = ablkcipher_encrypt,
|
|
.decrypt = ablkcipher_decrypt,
|
|
.givencrypt = ablkcipher_givencrypt,
|
|
.geniv = "<built-in>",
|
|
.min_keysize = AES_MIN_KEY_SIZE,
|
|
.max_keysize = AES_MAX_KEY_SIZE,
|
|
.ivsize = AES_BLOCK_SIZE,
|
|
},
|
|
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
|
|
},
|
|
{
|
|
.name = "cbc(des3_ede)",
|
|
.driver_name = "cbc-3des-caam-qi",
|
|
.blocksize = DES3_EDE_BLOCK_SIZE,
|
|
.type = CRYPTO_ALG_TYPE_GIVCIPHER,
|
|
.template_ablkcipher = {
|
|
.setkey = ablkcipher_setkey,
|
|
.encrypt = ablkcipher_encrypt,
|
|
.decrypt = ablkcipher_decrypt,
|
|
.givencrypt = ablkcipher_givencrypt,
|
|
.geniv = "<built-in>",
|
|
.min_keysize = DES3_EDE_KEY_SIZE,
|
|
.max_keysize = DES3_EDE_KEY_SIZE,
|
|
.ivsize = DES3_EDE_BLOCK_SIZE,
|
|
},
|
|
.class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
|
|
},
|
|
{
|
|
.name = "cbc(des)",
|
|
.driver_name = "cbc-des-caam-qi",
|
|
.blocksize = DES_BLOCK_SIZE,
|
|
.type = CRYPTO_ALG_TYPE_GIVCIPHER,
|
|
.template_ablkcipher = {
|
|
.setkey = ablkcipher_setkey,
|
|
.encrypt = ablkcipher_encrypt,
|
|
.decrypt = ablkcipher_decrypt,
|
|
.givencrypt = ablkcipher_givencrypt,
|
|
.geniv = "<built-in>",
|
|
.min_keysize = DES_KEY_SIZE,
|
|
.max_keysize = DES_KEY_SIZE,
|
|
.ivsize = DES_BLOCK_SIZE,
|
|
},
|
|
.class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
|
|
},
|
|
{
|
|
.name = "ctr(aes)",
|
|
.driver_name = "ctr-aes-caam-qi",
|
|
.blocksize = 1,
|
|
.type = CRYPTO_ALG_TYPE_ABLKCIPHER,
|
|
.template_ablkcipher = {
|
|
.setkey = ablkcipher_setkey,
|
|
.encrypt = ablkcipher_encrypt,
|
|
.decrypt = ablkcipher_decrypt,
|
|
.geniv = "chainiv",
|
|
.min_keysize = AES_MIN_KEY_SIZE,
|
|
.max_keysize = AES_MAX_KEY_SIZE,
|
|
.ivsize = AES_BLOCK_SIZE,
|
|
},
|
|
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CTR_MOD128,
|
|
},
|
|
{
|
|
.name = "rfc3686(ctr(aes))",
|
|
.driver_name = "rfc3686-ctr-aes-caam-qi",
|
|
.blocksize = 1,
|
|
.type = CRYPTO_ALG_TYPE_GIVCIPHER,
|
|
.template_ablkcipher = {
|
|
.setkey = ablkcipher_setkey,
|
|
.encrypt = ablkcipher_encrypt,
|
|
.decrypt = ablkcipher_decrypt,
|
|
.givencrypt = ablkcipher_givencrypt,
|
|
.geniv = "<built-in>",
|
|
.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,
|
|
},
|
|
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CTR_MOD128,
|
|
},
|
|
{
|
|
.name = "xts(aes)",
|
|
.driver_name = "xts-aes-caam-qi",
|
|
.blocksize = AES_BLOCK_SIZE,
|
|
.type = CRYPTO_ALG_TYPE_ABLKCIPHER,
|
|
.template_ablkcipher = {
|
|
.setkey = xts_ablkcipher_setkey,
|
|
.encrypt = ablkcipher_encrypt,
|
|
.decrypt = ablkcipher_decrypt,
|
|
.geniv = "eseqiv",
|
|
.min_keysize = 2 * AES_MIN_KEY_SIZE,
|
|
.max_keysize = 2 * AES_MAX_KEY_SIZE,
|
|
.ivsize = AES_BLOCK_SIZE,
|
|
},
|
|
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_XTS,
|
|
},
|
|
};
|
|
|
|
static struct caam_aead_alg driver_aeads[] = {
|
|
/* single-pass ipsec_esp descriptor */
|
|
{
|
|
.aead = {
|
|
.base = {
|
|
.cra_name = "authenc(hmac(md5),cbc(aes))",
|
|
.cra_driver_name = "authenc-hmac-md5-"
|
|
"cbc-aes-caam-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
|
|
},
|
|
.setkey = 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-qi",
|
|
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
|
|
},
|
|
.setkey = 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-qi",
|
|
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
|
|
},
|
|
.setkey = 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-qi",
|
|
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
|
|
},
|
|
.setkey = 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-qi",
|
|
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
|
|
},
|
|
.setkey = 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-qi",
|
|
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
|
|
},
|
|
.setkey = 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-qi",
|
|
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
|
|
},
|
|
.setkey = 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-qi",
|
|
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
|
|
},
|
|
.setkey = 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-qi",
|
|
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
|
|
},
|
|
.setkey = 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-qi",
|
|
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
|
|
},
|
|
.setkey = 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-qi",
|
|
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
|
|
},
|
|
.setkey = 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-qi",
|
|
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
|
|
},
|
|
.setkey = 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-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.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-qi",
|
|
.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,
|
|
}
|
|
},
|
|
};
|
|
|
|
struct caam_crypto_alg {
|
|
struct list_head entry;
|
|
struct crypto_alg crypto_alg;
|
|
struct caam_alg_entry caam;
|
|
};
|
|
|
|
static int caam_init_common(struct caam_ctx *ctx, struct caam_alg_entry *caam)
|
|
{
|
|
struct caam_drv_private *priv;
|
|
|
|
/*
|
|
* distribute tfms across job rings to ensure in-order
|
|
* crypto request processing per tfm
|
|
*/
|
|
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);
|
|
}
|
|
|
|
ctx->key_dma = dma_map_single(ctx->jrdev, ctx->key, sizeof(ctx->key),
|
|
DMA_TO_DEVICE);
|
|
if (dma_mapping_error(ctx->jrdev, ctx->key_dma)) {
|
|
dev_err(ctx->jrdev, "unable to map key\n");
|
|
caam_jr_free(ctx->jrdev);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* 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;
|
|
|
|
priv = dev_get_drvdata(ctx->jrdev->parent);
|
|
ctx->qidev = priv->qidev;
|
|
|
|
spin_lock_init(&ctx->lock);
|
|
ctx->drv_ctx[ENCRYPT] = NULL;
|
|
ctx->drv_ctx[DECRYPT] = NULL;
|
|
ctx->drv_ctx[GIVENCRYPT] = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int caam_cra_init(struct crypto_tfm *tfm)
|
|
{
|
|
struct crypto_alg *alg = tfm->__crt_alg;
|
|
struct caam_crypto_alg *caam_alg = container_of(alg, typeof(*caam_alg),
|
|
crypto_alg);
|
|
struct caam_ctx *ctx = crypto_tfm_ctx(tfm);
|
|
|
|
return caam_init_common(ctx, &caam_alg->caam);
|
|
}
|
|
|
|
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, typeof(*caam_alg),
|
|
aead);
|
|
struct caam_ctx *ctx = crypto_aead_ctx(tfm);
|
|
|
|
return caam_init_common(ctx, &caam_alg->caam);
|
|
}
|
|
|
|
static void caam_exit_common(struct caam_ctx *ctx)
|
|
{
|
|
caam_drv_ctx_rel(ctx->drv_ctx[ENCRYPT]);
|
|
caam_drv_ctx_rel(ctx->drv_ctx[DECRYPT]);
|
|
caam_drv_ctx_rel(ctx->drv_ctx[GIVENCRYPT]);
|
|
|
|
dma_unmap_single(ctx->jrdev, ctx->key_dma, sizeof(ctx->key),
|
|
DMA_TO_DEVICE);
|
|
|
|
caam_jr_free(ctx->jrdev);
|
|
}
|
|
|
|
static void caam_cra_exit(struct crypto_tfm *tfm)
|
|
{
|
|
caam_exit_common(crypto_tfm_ctx(tfm));
|
|
}
|
|
|
|
static void caam_aead_exit(struct crypto_aead *tfm)
|
|
{
|
|
caam_exit_common(crypto_aead_ctx(tfm));
|
|
}
|
|
|
|
static struct list_head alg_list;
|
|
static void __exit caam_qi_algapi_exit(void)
|
|
{
|
|
struct caam_crypto_alg *t_alg, *n;
|
|
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);
|
|
}
|
|
|
|
if (!alg_list.next)
|
|
return;
|
|
|
|
list_for_each_entry_safe(t_alg, n, &alg_list, entry) {
|
|
crypto_unregister_alg(&t_alg->crypto_alg);
|
|
list_del(&t_alg->entry);
|
|
kfree(t_alg);
|
|
}
|
|
}
|
|
|
|
static struct caam_crypto_alg *caam_alg_alloc(struct caam_alg_template
|
|
*template)
|
|
{
|
|
struct caam_crypto_alg *t_alg;
|
|
struct crypto_alg *alg;
|
|
|
|
t_alg = kzalloc(sizeof(*t_alg), GFP_KERNEL);
|
|
if (!t_alg)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
alg = &t_alg->crypto_alg;
|
|
|
|
snprintf(alg->cra_name, CRYPTO_MAX_ALG_NAME, "%s", template->name);
|
|
snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s",
|
|
template->driver_name);
|
|
alg->cra_module = THIS_MODULE;
|
|
alg->cra_init = caam_cra_init;
|
|
alg->cra_exit = caam_cra_exit;
|
|
alg->cra_priority = CAAM_CRA_PRIORITY;
|
|
alg->cra_blocksize = template->blocksize;
|
|
alg->cra_alignmask = 0;
|
|
alg->cra_ctxsize = sizeof(struct caam_ctx);
|
|
alg->cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_KERN_DRIVER_ONLY |
|
|
template->type;
|
|
switch (template->type) {
|
|
case CRYPTO_ALG_TYPE_GIVCIPHER:
|
|
alg->cra_type = &crypto_givcipher_type;
|
|
alg->cra_ablkcipher = template->template_ablkcipher;
|
|
break;
|
|
case CRYPTO_ALG_TYPE_ABLKCIPHER:
|
|
alg->cra_type = &crypto_ablkcipher_type;
|
|
alg->cra_ablkcipher = template->template_ablkcipher;
|
|
break;
|
|
}
|
|
|
|
t_alg->caam.class1_alg_type = template->class1_alg_type;
|
|
t_alg->caam.class2_alg_type = template->class2_alg_type;
|
|
|
|
return t_alg;
|
|
}
|
|
|
|
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_KERN_DRIVER_ONLY;
|
|
|
|
alg->init = caam_aead_init;
|
|
alg->exit = caam_aead_exit;
|
|
}
|
|
|
|
static int __init caam_qi_algapi_init(void)
|
|
{
|
|
struct device_node *dev_node;
|
|
struct platform_device *pdev;
|
|
struct device *ctrldev;
|
|
struct caam_drv_private *priv;
|
|
int i = 0, err = 0;
|
|
u32 cha_vid, cha_inst, des_inst, aes_inst, md_inst;
|
|
unsigned int md_limit = SHA512_DIGEST_SIZE;
|
|
bool registered = false;
|
|
|
|
dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0");
|
|
if (!dev_node) {
|
|
dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec4.0");
|
|
if (!dev_node)
|
|
return -ENODEV;
|
|
}
|
|
|
|
pdev = of_find_device_by_node(dev_node);
|
|
of_node_put(dev_node);
|
|
if (!pdev)
|
|
return -ENODEV;
|
|
|
|
ctrldev = &pdev->dev;
|
|
priv = dev_get_drvdata(ctrldev);
|
|
|
|
/*
|
|
* If priv is NULL, it's probably because the caam driver wasn't
|
|
* properly initialized (e.g. RNG4 init failed). Thus, bail out here.
|
|
*/
|
|
if (!priv || !priv->qi_present)
|
|
return -ENODEV;
|
|
|
|
INIT_LIST_HEAD(&alg_list);
|
|
|
|
/*
|
|
* Register crypto algorithms the device supports.
|
|
* First, detect presence and attributes of DES, AES, and MD blocks.
|
|
*/
|
|
cha_vid = rd_reg32(&priv->ctrl->perfmon.cha_id_ls);
|
|
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) >> CHA_ID_LS_AES_SHIFT;
|
|
md_inst = (cha_inst & CHA_ID_LS_MD_MASK) >> CHA_ID_LS_MD_SHIFT;
|
|
|
|
/* If MD is present, limit digest size based on LP256 */
|
|
if (md_inst && ((cha_vid & CHA_ID_LS_MD_MASK) == CHA_ID_LS_MD_LP256))
|
|
md_limit = SHA256_DIGEST_SIZE;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(driver_algs); i++) {
|
|
struct caam_crypto_alg *t_alg;
|
|
struct caam_alg_template *alg = driver_algs + i;
|
|
u32 alg_sel = alg->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;
|
|
|
|
t_alg = caam_alg_alloc(alg);
|
|
if (IS_ERR(t_alg)) {
|
|
err = PTR_ERR(t_alg);
|
|
dev_warn(priv->qidev, "%s alg allocation failed\n",
|
|
alg->driver_name);
|
|
continue;
|
|
}
|
|
|
|
err = crypto_register_alg(&t_alg->crypto_alg);
|
|
if (err) {
|
|
dev_warn(priv->qidev, "%s alg registration failed\n",
|
|
t_alg->crypto_alg.cra_driver_name);
|
|
kfree(t_alg);
|
|
continue;
|
|
}
|
|
|
|
list_add_tail(&t_alg->entry, &alg_list);
|
|
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;
|
|
|
|
/*
|
|
* Check support for AES algorithms not available
|
|
* on LP devices.
|
|
*/
|
|
if (((cha_vid & CHA_ID_LS_AES_MASK) == CHA_ID_LS_AES_LP) &&
|
|
(alg_aai == OP_ALG_AAI_GCM))
|
|
continue;
|
|
|
|
/*
|
|
* Skip algorithms requiring message digests
|
|
* if MD or MD size is not supported by device.
|
|
*/
|
|
if (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)
|
|
dev_info(priv->qidev, "algorithms registered in /proc/crypto\n");
|
|
|
|
return err;
|
|
}
|
|
|
|
module_init(caam_qi_algapi_init);
|
|
module_exit(caam_qi_algapi_exit);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("Support for crypto API using CAAM-QI backend");
|
|
MODULE_AUTHOR("Freescale Semiconductor");
|