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crypto/octeontx2: support ECDSA

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Adding support for ECDSA asymmetric crypto
operations in crypto_octeontx2 PMD.

Signed-off-by: Anoob Joseph <anoobj@marvell.com>
Signed-off-by: Balakrishna Bhamidipati <bbhamidipati@marvell.com>
Signed-off-by: Sunila Sahu <ssahu@marvell.com>
This commit is contained in:
Sunila Sahu 2020-01-15 18:13:38 +05:30 committed by Akhil Goyal
parent aa2cbd32e9
commit 2e12bd06fe
3 changed files with 54 additions and 4 deletions
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8
doc/guides/cryptodevs/features/octeontx2.ini
View File

@ -67,5 +67,9 @@ AES GCM (256) = Y
; Supported Asymmetric algorithms of the 'octeontx2' crypto driver.
;
[Asymmetric]
RSA = Y
Modular Exponentiation = Y
RSA = Y
DSA =
Modular Exponentiation = Y
Modular Inversion =
Diffie-hellman =
ECDSA = Y

11
drivers/crypto/octeontx2/otx2_cryptodev_capabilities.c
View File

@ -628,6 +628,17 @@ rte_cryptodev_capabilities otx2_cpt_capabilities[] = {
}
}, }
},
{ /* ECDSA */
.op = RTE_CRYPTO_OP_TYPE_ASYMMETRIC,
{.asym = {
.xform_capa = {
.xform_type = RTE_CRYPTO_ASYM_XFORM_ECDSA,
.op_types = ((1 << RTE_CRYPTO_ASYM_OP_SIGN) |
(1 << RTE_CRYPTO_ASYM_OP_VERIFY)),
}
},
}
},
/* End of asymmetric capabilities */
RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
};

39
drivers/crypto/octeontx2/otx2_cryptodev_ops.c
View File

@ -22,6 +22,8 @@
#define METABUF_POOL_CACHE_SIZE 512
static uint64_t otx2_fpm_iova[CPT_EC_ID_PMAX];
/* Forward declarations */
static int
@ -440,6 +442,11 @@ otx2_cpt_enqueue_asym(struct otx2_cpt_qp *qp,
if (unlikely(ret))
goto req_fail;
break;
case RTE_CRYPTO_ASYM_XFORM_ECDSA:
ret = cpt_enqueue_ecdsa_op(op, &params, sess, otx2_fpm_iova);
if (unlikely(ret))
goto req_fail;
break;
default:
op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
ret = -EINVAL;
@ -641,6 +648,23 @@ otx2_cpt_asym_rsa_op(struct rte_crypto_op *cop, struct cpt_request_info *req,
}
}
static __rte_always_inline void
otx2_cpt_asym_dequeue_ecdsa_op(struct rte_crypto_ecdsa_op_param *ecdsa,
struct cpt_request_info *req,
struct cpt_asym_ec_ctx *ec)
{
int prime_len = ec_grp[ec->curveid].prime.length;
if (ecdsa->op_type == RTE_CRYPTO_ASYM_OP_VERIFY)
return;
/* Separate out sign r and s components */
memcpy(ecdsa->r.data, req->rptr, prime_len);
memcpy(ecdsa->s.data, req->rptr + ROUNDUP8(prime_len), prime_len);
ecdsa->r.length = prime_len;
ecdsa->s.length = prime_len;
}
static void
otx2_cpt_asym_post_process(struct rte_crypto_op *cop,
struct cpt_request_info *req)
@ -660,6 +684,9 @@ otx2_cpt_asym_post_process(struct rte_crypto_op *cop,
memcpy(op->modex.result.data, req->rptr,
op->modex.result.length);
break;
case RTE_CRYPTO_ASYM_XFORM_ECDSA:
otx2_cpt_asym_dequeue_ecdsa_op(&op->ecdsa, req, &sess->ec_ctx);
break;
default:
CPT_LOG_DP_DEBUG("Invalid crypto xform type");
cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
@ -824,6 +851,13 @@ otx2_cpt_dev_config(struct rte_cryptodev *dev,
dev->feature_flags &= ~conf->ff_disable;
if (dev->feature_flags & RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO) {
/* Initialize shared FPM table */
ret = cpt_fpm_init(otx2_fpm_iova);
if (ret)
return ret;
}
/* Unregister error interrupts */
if (vf->err_intr_registered)
otx2_cpt_err_intr_unregister(dev);
@ -881,9 +915,10 @@ otx2_cpt_dev_start(struct rte_cryptodev *dev)
static void
otx2_cpt_dev_stop(struct rte_cryptodev *dev)
{
RTE_SET_USED(dev);
CPT_PMD_INIT_FUNC_TRACE();
if (dev->feature_flags & RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO)
cpt_fpm_clear();
}
static int