+static __rte_always_inline void
+otx2_cpt_asym_rsa_op(struct rte_crypto_op *cop, struct cpt_request_info *req,
+ struct rte_crypto_rsa_xform *rsa_ctx)
+{
+ struct rte_crypto_rsa_op_param *rsa = &cop->asym->rsa;
+
+ switch (rsa->op_type) {
+ case RTE_CRYPTO_ASYM_OP_ENCRYPT:
+ rsa->cipher.length = rsa_ctx->n.length;
+ memcpy(rsa->cipher.data, req->rptr, rsa->cipher.length);
+ break;
+ case RTE_CRYPTO_ASYM_OP_DECRYPT:
+ if (rsa->pad == RTE_CRYPTO_RSA_PADDING_NONE) {
+ rsa->message.length = rsa_ctx->n.length;
+ memcpy(rsa->message.data, req->rptr,
+ rsa->message.length);
+ } else {
+ /* Get length of decrypted output */
+ rsa->message.length = rte_cpu_to_be_16
+ (*((uint16_t *)req->rptr));
+ /*
+ * Offset output data pointer by length field
+ * (2 bytes) and copy decrypted data.
+ */
+ memcpy(rsa->message.data, req->rptr + 2,
+ rsa->message.length);
+ }
+ break;
+ case RTE_CRYPTO_ASYM_OP_SIGN:
+ rsa->sign.length = rsa_ctx->n.length;
+ memcpy(rsa->sign.data, req->rptr, rsa->sign.length);
+ break;
+ case RTE_CRYPTO_ASYM_OP_VERIFY:
+ if (rsa->pad == RTE_CRYPTO_RSA_PADDING_NONE) {
+ rsa->sign.length = rsa_ctx->n.length;
+ memcpy(rsa->sign.data, req->rptr, rsa->sign.length);
+ } else {
+ /* Get length of signed output */
+ rsa->sign.length = rte_cpu_to_be_16
+ (*((uint16_t *)req->rptr));
+ /*
+ * Offset output data pointer by length field
+ * (2 bytes) and copy signed data.
+ */
+ memcpy(rsa->sign.data, req->rptr + 2,
+ rsa->sign.length);
+ }
+ if (memcmp(rsa->sign.data, rsa->message.data,
+ rsa->message.length)) {
+ CPT_LOG_DP_ERR("RSA verification failed");
+ cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
+ }
+ break;
+ default:
+ CPT_LOG_DP_DEBUG("Invalid RSA operation type");
+ cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
+ break;
+ }
+}
+
+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 __rte_always_inline void
+otx2_cpt_asym_dequeue_ecpm_op(struct rte_crypto_ecpm_op_param *ecpm,
+ struct cpt_request_info *req,
+ struct cpt_asym_ec_ctx *ec)
+{
+ int prime_len = ec_grp[ec->curveid].prime.length;
+
+ memcpy(ecpm->r.x.data, req->rptr, prime_len);
+ memcpy(ecpm->r.y.data, req->rptr + ROUNDUP8(prime_len), prime_len);
+ ecpm->r.x.length = prime_len;
+ ecpm->r.y.length = prime_len;
+}
+
+static void
+otx2_cpt_asym_post_process(struct rte_crypto_op *cop,
+ struct cpt_request_info *req)
+{
+ struct rte_crypto_asym_op *op = cop->asym;
+ struct cpt_asym_sess_misc *sess;
+
+ sess = get_asym_session_private_data(op->session,
+ otx2_cryptodev_driver_id);
+
+ switch (sess->xfrm_type) {
+ case RTE_CRYPTO_ASYM_XFORM_RSA:
+ otx2_cpt_asym_rsa_op(cop, req, &sess->rsa_ctx);
+ break;
+ case RTE_CRYPTO_ASYM_XFORM_MODEX:
+ op->modex.result.length = sess->mod_ctx.modulus.length;
+ 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;
+ case RTE_CRYPTO_ASYM_XFORM_ECPM:
+ otx2_cpt_asym_dequeue_ecpm_op(&op->ecpm, req, &sess->ec_ctx);
+ break;
+ default:
+ CPT_LOG_DP_DEBUG("Invalid crypto xform type");
+ cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
+ break;
+ }
+}
+