Add fixed point multiplication for EC curve in CNXK.
Signed-off-by: Kiran Kumar K <kirankum...@marvell.com>
Signed-off-by: Gowrishankar Muthukrishnan <gmuthukri...@marvell.com>
---
drivers/common/cnxk/roc_ae.h | 1 +
drivers/crypto/cnxk/cnxk_ae.h | 69 +++++++++++++++++++
.../crypto/cnxk/cnxk_cryptodev_capabilities.c | 10 +++
3 files changed, 80 insertions(+)
diff --git a/drivers/common/cnxk/roc_ae.h b/drivers/common/cnxk/roc_ae.h
index 9c637d67ef..c972878eff 100644
--- a/drivers/common/cnxk/roc_ae.h
+++ b/drivers/common/cnxk/roc_ae.h
@@ -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
diff --git a/drivers/crypto/cnxk/cnxk_ae.h b/drivers/crypto/cnxk/cnxk_ae.h
index 0562f72270..4a7ce0bf40 100644
--- a/drivers/crypto/cnxk/cnxk_ae.h
+++ b/drivers/crypto/cnxk/cnxk_ae.h
@@ -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;
diff --git a/drivers/crypto/cnxk/cnxk_cryptodev_capabilities.c
b/drivers/crypto/cnxk/cnxk_cryptodev_capabilities.c
index 705d67e91f..e32f476dd9 100644
--- a/drivers/crypto/cnxk/cnxk_cryptodev_capabilities.c
+++ b/drivers/crypto/cnxk/cnxk_cryptodev_capabilities.c
@@ -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[] = {
--
2.25.1
