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crypto: hisilicon/hpre - adapt ECDH for high-performance cores

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Only the ECDH with NIST P-256 meets requirements.
The algorithm will be scheduled first for high-performance cores.
The key step is to config resv1 field of BD.

Signed-off-by: lizhi <lizhi206@huawei.com>
Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
lizhi
2025-02-09 18:08:11 +08:00
committed by Herbert Xu
parent 07bb097b92
commit 1d19058d86
1 changed files with 7 additions and 0 deletions
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drivers/crypto/hisilicon/hpre/hpre_crypto.c
+7
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@@ -39,6 +39,8 @@ struct hpre_ctx;
#define HPRE_DFX_SEC_TO_US 1000000
#define HPRE_DFX_US_TO_NS 1000
#define HPRE_ENABLE_HPCORE_SHIFT 7
/* due to nist p521 */
#define HPRE_ECC_MAX_KSZ 66
@@ -131,6 +133,8 @@ struct hpre_ctx {
};
/* for ecc algorithms */
unsigned int curve_id;
/* for high performance core */
u8 enable_hpcore;
};
struct hpre_asym_request {
@@ -1619,6 +1623,8 @@ static int hpre_ecdh_compute_value(struct kpp_request *req)
}
msg->dw0 = cpu_to_le32(le32_to_cpu(msg->dw0) | HPRE_ALG_ECC_MUL);
msg->resv1 = ctx->enable_hpcore << HPRE_ENABLE_HPCORE_SHIFT;
ret = hpre_send(ctx, msg);
if (likely(!ret))
return -EINPROGRESS;
@@ -1653,6 +1659,7 @@ static int hpre_ecdh_nist_p256_init_tfm(struct crypto_kpp *tfm)
struct hpre_ctx *ctx = kpp_tfm_ctx(tfm);
ctx->curve_id = ECC_CURVE_NIST_P256;
ctx->enable_hpcore = 1;
kpp_set_reqsize(tfm, sizeof(struct hpre_asym_request) + hpre_align_pd());