diff options
Diffstat (limited to 'drivers/crypto/caam/caamalg_qi.c')
-rw-r--r-- | drivers/crypto/caam/caamalg_qi.c | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/drivers/crypto/caam/caamalg_qi.c b/drivers/crypto/caam/caamalg_qi.c index d6a9b0c..1369018 100644 --- a/drivers/crypto/caam/caamalg_qi.c +++ b/drivers/crypto/caam/caamalg_qi.c @@ -74,6 +74,7 @@ static int aead_set_sh_desc(struct crypto_aead *aead) const bool ctr_mode = ((ctx->cdata.algtype & OP_ALG_AAI_MASK) == OP_ALG_AAI_CTR_MOD128); const bool is_rfc3686 = alg->caam.rfc3686; + struct caam_drv_private *ctrlpriv = dev_get_drvdata(ctx->jrdev->parent); if (!ctx->cdata.keylen || !ctx->authsize) return 0; @@ -124,7 +125,7 @@ static int aead_set_sh_desc(struct crypto_aead *aead) cnstr_shdsc_aead_encap(ctx->sh_desc_enc, &ctx->cdata, &ctx->adata, ivsize, ctx->authsize, is_rfc3686, nonce, - ctx1_iv_off, true); + ctx1_iv_off, true, ctrlpriv->era); skip_enc: /* aead_decrypt shared descriptor */ @@ -149,7 +150,8 @@ skip_enc: cnstr_shdsc_aead_decap(ctx->sh_desc_dec, &ctx->cdata, &ctx->adata, ivsize, ctx->authsize, alg->caam.geniv, - is_rfc3686, nonce, ctx1_iv_off, true); + is_rfc3686, nonce, ctx1_iv_off, true, + ctrlpriv->era); if (!alg->caam.geniv) goto skip_givenc; @@ -176,7 +178,7 @@ skip_enc: cnstr_shdsc_aead_givencap(ctx->sh_desc_enc, &ctx->cdata, &ctx->adata, ivsize, ctx->authsize, is_rfc3686, nonce, - ctx1_iv_off, true); + ctx1_iv_off, true, ctrlpriv->era); skip_givenc: return 0; @@ -197,6 +199,7 @@ static int aead_setkey(struct crypto_aead *aead, const u8 *key, { 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; @@ -211,6 +214,27 @@ static int aead_setkey(struct crypto_aead *aead, const u8 *key, DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1); #endif + /* + * 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, DMA_TO_DEVICE); + goto skip_split_key; + } + ret = gen_split_key(jrdev, ctx->key, &ctx->adata, keys.authkey, keys.authkeylen, CAAM_MAX_KEY_SIZE - keys.enckeylen); @@ -227,6 +251,7 @@ static int aead_setkey(struct crypto_aead *aead, const u8 *key, ctx->adata.keylen_pad + keys.enckeylen, 1); #endif +skip_split_key: ctx->cdata.keylen = keys.enckeylen; ret = aead_set_sh_desc(aead); |