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crypto/cnxk: support fixed point multiplication

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Add fixed point multiplication for EC curve in CNXK.

Signed-off-by: Kiran Kumar K <kirankumark@marvell.com>
Signed-off-by: Gowrishankar Muthukrishnan <gmuthukrishn@marvell.com>
Acked-by: Anoob Joseph <anoobj@marvell.com>
This commit is contained in:
Gowrishankar Muthukrishnan 2022-09-27 13:29:00 +05:30 committed by Akhil Goyal
parent 0b65d54f3a
commit 8e39b13323
3 changed files with 80 additions and 0 deletions
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1
drivers/common/cnxk/roc_ae.h
View File

@ -18,6 +18,7 @@
#define ROC_AE_MINOR_OP_ECDSA_SIGN 0x01
#define ROC_AE_MINOR_OP_ECDSA_VERIFY 0x02
#define ROC_AE_MINOR_OP_ECC_UMP 0x03
#define ROC_AE_MINOR_OP_ECC_FPM 0x04
/**
* Enumeration roc_ae_ec_id

69
drivers/crypto/cnxk/cnxk_ae.h
View File

@ -181,6 +181,7 @@ cnxk_ae_fill_session_parameters(struct cnxk_ae_sess *sess,
case RTE_CRYPTO_ASYM_XFORM_ECDSA:
/* Fall through */
case RTE_CRYPTO_ASYM_XFORM_ECPM:
case RTE_CRYPTO_ASYM_XFORM_ECFPM:
ret = cnxk_ae_fill_ec_params(sess, xform);
break;
default:
@ -207,6 +208,7 @@ cnxk_ae_free_session_parameters(struct cnxk_ae_sess *sess)
case RTE_CRYPTO_ASYM_XFORM_ECDSA:
/* Fall through */
case RTE_CRYPTO_ASYM_XFORM_ECPM:
case RTE_CRYPTO_ASYM_XFORM_ECFPM:
break;
default:
break;
@ -600,6 +602,64 @@ cnxk_ae_enqueue_ecdsa_op(struct rte_crypto_op *op,
return 0;
}
static __rte_always_inline int
cnxk_ae_ecfpm_prep(struct rte_crypto_ecpm_op_param *ecpm,
struct roc_ae_buf_ptr *meta_buf, uint64_t *fpm_iova,
struct roc_ae_ec_group *ec_grp, uint8_t curveid,
struct cpt_inst_s *inst)
{
uint16_t scalar_align, p_align;
uint16_t dlen, prime_len;
uint64_t fpm_table_iova;
union cpt_inst_w4 w4;
uint8_t *dptr;
prime_len = ec_grp->prime.length;
fpm_table_iova = (uint64_t)fpm_iova[curveid];
/* Input buffer */
dptr = meta_buf->vaddr;
inst->dptr = (uintptr_t)dptr;
p_align = RTE_ALIGN_CEIL(prime_len, 8);
scalar_align = RTE_ALIGN_CEIL(ecpm->scalar.length, 8);
/*
* Set dlen = sum(ROUNDUP8(input point(x and y coordinates), prime,
* scalar length),
* Please note point length is equivalent to prime of the curve
*/
dlen = sizeof(fpm_table_iova) + 3 * p_align + scalar_align;
memset(dptr, 0, dlen);
*(uint64_t *)dptr = fpm_table_iova;
dptr += sizeof(fpm_table_iova);
/* Copy scalar, prime */
memcpy(dptr, ecpm->scalar.data, ecpm->scalar.length);
dptr += scalar_align;
memcpy(dptr, ec_grp->prime.data, ec_grp->prime.length);
dptr += p_align;
memcpy(dptr, ec_grp->consta.data, ec_grp->consta.length);
dptr += p_align;
memcpy(dptr, ec_grp->constb.data, ec_grp->constb.length);
dptr += p_align;
/* Setup opcodes */
w4.s.opcode_major = ROC_AE_MAJOR_OP_ECC;
w4.s.opcode_minor = ROC_AE_MINOR_OP_ECC_FPM;
w4.s.param1 = curveid | (1 << 8);
w4.s.param2 = ecpm->scalar.length;
w4.s.dlen = dlen;
inst->w4.u64 = w4.u64;
inst->rptr = (uintptr_t)dptr;
return 0;
}
static __rte_always_inline int
cnxk_ae_ecpm_prep(struct rte_crypto_ecpm_op_param *ecpm,
struct roc_ae_buf_ptr *meta_buf,
@ -811,6 +871,14 @@ cnxk_ae_enqueue(struct cnxk_cpt_qp *qp, struct rte_crypto_op *op,
if (unlikely(ret))
goto req_fail;
break;
case RTE_CRYPTO_ASYM_XFORM_ECFPM:
ret = cnxk_ae_ecfpm_prep(&asym_op->ecpm, &meta_buf,
sess->cnxk_fpm_iova,
sess->ec_grp[sess->ec_ctx.curveid],
sess->ec_ctx.curveid, inst);
if (unlikely(ret))
goto req_fail;
break;
default:
op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
ret = -EINVAL;
@ -845,6 +913,7 @@ cnxk_ae_post_process(struct rte_crypto_op *cop, struct cnxk_ae_sess *sess,
sess->ec_grp);
break;
case RTE_CRYPTO_ASYM_XFORM_ECPM:
case RTE_CRYPTO_ASYM_XFORM_ECFPM:
cnxk_ae_dequeue_ecpm_op(&op->ecpm, rptr, &sess->ec_ctx,
sess->ec_grp);
break;

10
drivers/crypto/cnxk/cnxk_cryptodev_capabilities.c
View File

@ -82,6 +82,16 @@ static const struct rte_cryptodev_capabilities caps_mul[] = {
},
}
},
{ /* ECFPM */
.op = RTE_CRYPTO_OP_TYPE_ASYMMETRIC,
{.asym = {
.xform_capa = {
.xform_type = RTE_CRYPTO_ASYM_XFORM_ECFPM,
.op_types = 0
}
},
}
},
};
static const struct rte_cryptodev_capabilities caps_sha1_sha2[] = {