text: /* SPDX-License-Identifier: BSD-3-Clause
   * Copyright(c) 2016-2017 Intel Corporation
   */
  
  #include <rte_cryptodev.h>
  
  #include "cperf_ops.h"
  #include "cperf_test_vectors.h"
  
  static int
  cperf_set_ops_null_cipher(struct rte_crypto_op **ops,
  		uint32_t src_buf_offset, uint32_t dst_buf_offset,
  		uint16_t nb_ops, struct rte_cryptodev_sym_session *sess,
  		const struct cperf_options *options,
  		const struct cperf_test_vector *test_vector __rte_unused,
  		uint16_t iv_offset __rte_unused, uint32_t *imix_idx)
  {
  	uint16_t i;
  
  	for (i = 0; i < nb_ops; i++) {
  		struct rte_crypto_sym_op *sym_op = ops[i]->sym;
  
  		ops[i]->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
  		rte_crypto_op_attach_sym_session(ops[i], sess);
  
  		sym_op->m_src = (struct rte_mbuf *)((uint8_t *)ops[i] +
  							src_buf_offset);
  
  		/* Set dest mbuf to NULL if out-of-place (dst_buf_offset = 0) */
  		if (dst_buf_offset == 0)
  			sym_op->m_dst = NULL;
  		else
  			sym_op->m_dst = (struct rte_mbuf *)((uint8_t *)ops[i] +
  							dst_buf_offset);
  
  		/* cipher parameters */
  		if (options->imix_distribution_count) {
  			sym_op->cipher.data.length =
  				options->imix_buffer_sizes[*imix_idx];
  			*imix_idx = (*imix_idx + 1) % options->pool_sz;
  		} else
  			sym_op->cipher.data.length = options->test_buffer_size;
  		sym_op->cipher.data.offset = 0;
  	}
  
  	return 0;
  }
  
  static int
  cperf_set_ops_null_auth(struct rte_crypto_op **ops,
  		uint32_t src_buf_offset, uint32_t dst_buf_offset,
  		uint16_t nb_ops, struct rte_cryptodev_sym_session *sess,
  		const struct cperf_options *options,
  		const struct cperf_test_vector *test_vector __rte_unused,
  		uint16_t iv_offset __rte_unused, uint32_t *imix_idx)
  {
  	uint16_t i;
  
  	for (i = 0; i < nb_ops; i++) {
  		struct rte_crypto_sym_op *sym_op = ops[i]->sym;
  
  		ops[i]->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
  		rte_crypto_op_attach_sym_session(ops[i], sess);
  
  		sym_op->m_src = (struct rte_mbuf *)((uint8_t *)ops[i] +
  							src_buf_offset);
  
  		/* Set dest mbuf to NULL if out-of-place (dst_buf_offset = 0) */
  		if (dst_buf_offset == 0)
  			sym_op->m_dst = NULL;
  		else
  			sym_op->m_dst = (struct rte_mbuf *)((uint8_t *)ops[i] +
  							dst_buf_offset);
  
  		/* auth parameters */
  		if (options->imix_distribution_count) {
  			sym_op->auth.data.length =
  				options->imix_buffer_sizes[*imix_idx];
  			*imix_idx = (*imix_idx + 1) % options->pool_sz;
  		} else
  			sym_op->auth.data.length = options->test_buffer_size;
  		sym_op->auth.data.offset = 0;
  	}
  
  	return 0;
  }
  
  static int
  cperf_set_ops_cipher(struct rte_crypto_op **ops,
  		uint32_t src_buf_offset, uint32_t dst_buf_offset,
  		uint16_t nb_ops, struct rte_cryptodev_sym_session *sess,
  		const struct cperf_options *options,
  		const struct cperf_test_vector *test_vector,
  		uint16_t iv_offset, uint32_t *imix_idx)
  {
  	uint16_t i;
  
  	for (i = 0; i < nb_ops; i++) {
  		struct rte_crypto_sym_op *sym_op = ops[i]->sym;
  
  		ops[i]->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
  		rte_crypto_op_attach_sym_session(ops[i], sess);
  
  		sym_op->m_src = (struct rte_mbuf *)((uint8_t *)ops[i] +
  							src_buf_offset);
  
  		/* Set dest mbuf to NULL if out-of-place (dst_buf_offset = 0) */
  		if (dst_buf_offset == 0)
  			sym_op->m_dst = NULL;
  		else
  			sym_op->m_dst = (struct rte_mbuf *)((uint8_t *)ops[i] +
  							dst_buf_offset);
  
  		/* cipher parameters */
  		if (options->imix_distribution_count) {
  			sym_op->cipher.data.length =
  				options->imix_buffer_sizes[*imix_idx];
  			*imix_idx = (*imix_idx + 1) % options->pool_sz;
  		} else
  			sym_op->cipher.data.length = options->test_buffer_size;
  
  		if (options->cipher_algo == RTE_CRYPTO_CIPHER_SNOW3G_UEA2 ||
  				options->cipher_algo == RTE_CRYPTO_CIPHER_KASUMI_F8 ||
  				options->cipher_algo == RTE_CRYPTO_CIPHER_ZUC_EEA3)
  			sym_op->cipher.data.length <<= 3;
  
  		sym_op->cipher.data.offset = 0;
  	}
  
  	if (options->test == CPERF_TEST_TYPE_VERIFY) {
  		for (i = 0; i < nb_ops; i++) {
  			uint8_t *iv_ptr = rte_crypto_op_ctod_offset(ops[i],
  					uint8_t *, iv_offset);
  
  			memcpy(iv_ptr, test_vector->cipher_iv.data,
  					test_vector->cipher_iv.length);
  
  		}
  	}
  
  	return 0;
  }
  
  static int
  cperf_set_ops_auth(struct rte_crypto_op **ops,
  		uint32_t src_buf_offset, uint32_t dst_buf_offset,
  		uint16_t nb_ops, struct rte_cryptodev_sym_session *sess,
  		const struct cperf_options *options,
  		const struct cperf_test_vector *test_vector,
  		uint16_t iv_offset, uint32_t *imix_idx)
  {
  	uint16_t i;
  
  	for (i = 0; i < nb_ops; i++) {
  		struct rte_crypto_sym_op *sym_op = ops[i]->sym;
  
  		ops[i]->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
  		rte_crypto_op_attach_sym_session(ops[i], sess);
  
  		sym_op->m_src = (struct rte_mbuf *)((uint8_t *)ops[i] +
  							src_buf_offset);
  
  		/* Set dest mbuf to NULL if out-of-place (dst_buf_offset = 0) */
  		if (dst_buf_offset == 0)
  			sym_op->m_dst = NULL;
  		else
  			sym_op->m_dst = (struct rte_mbuf *)((uint8_t *)ops[i] +
  							dst_buf_offset);
  
  		if (test_vector->auth_iv.length) {
  			uint8_t *iv_ptr = rte_crypto_op_ctod_offset(ops[i],
  								uint8_t *,
  								iv_offset);
  			memcpy(iv_ptr, test_vector->auth_iv.data,
  					test_vector->auth_iv.length);
  		}
  
  		/* authentication parameters */
  		if (options->auth_op == RTE_CRYPTO_AUTH_OP_VERIFY) {
  			sym_op->auth.digest.data = test_vector->digest.data;
  			sym_op->auth.digest.phys_addr =
  					test_vector->digest.phys_addr;
  		} else {
  
  			uint32_t offset = options->test_buffer_size;
  			struct rte_mbuf *buf, *tbuf;
  
  			if (options->out_of_place) {
  				buf = sym_op->m_dst;
  			} else {
  				tbuf = sym_op->m_src;
  				while ((tbuf->next != NULL) &&
  						(offset >= tbuf->data_len)) {
  					offset -= tbuf->data_len;
  					tbuf = tbuf->next;
  				}
  				/*
  				 * If there is not enough room in segment,
  				 * place the digest in the next segment
  				 */
  				if ((tbuf->data_len - offset) < options->digest_sz) {
  					tbuf = tbuf->next;
  					offset = 0;
  				}
  				buf = tbuf;
  			}
  
  			sym_op->auth.digest.data = rte_pktmbuf_mtod_offset(buf,
  					uint8_t *, offset);
  			sym_op->auth.digest.phys_addr =
  					rte_pktmbuf_iova_offset(buf, offset);
  
  		}
  
  		if (options->imix_distribution_count) {
  			sym_op->auth.data.length =
  				options->imix_buffer_sizes[*imix_idx];
  			*imix_idx = (*imix_idx + 1) % options->pool_sz;
  		} else
  			sym_op->auth.data.length = options->test_buffer_size;
  
  		if (options->auth_algo == RTE_CRYPTO_AUTH_SNOW3G_UIA2 ||
  				options->auth_algo == RTE_CRYPTO_AUTH_KASUMI_F9 ||
  				options->auth_algo == RTE_CRYPTO_AUTH_ZUC_EIA3)
  			sym_op->auth.data.length <<= 3;
  
  		sym_op->auth.data.offset = 0;
  	}
  
  	if (options->test == CPERF_TEST_TYPE_VERIFY) {
  		if (test_vector->auth_iv.length) {
  			for (i = 0; i < nb_ops; i++) {
  				uint8_t *iv_ptr = rte_crypto_op_ctod_offset(ops[i],
  						uint8_t *, iv_offset);
  
  				memcpy(iv_ptr, test_vector->auth_iv.data,
  						test_vector->auth_iv.length);
  			}
  		}
  	}
  	return 0;
  }
  
  static int
  cperf_set_ops_cipher_auth(struct rte_crypto_op **ops,
  		uint32_t src_buf_offset, uint32_t dst_buf_offset,
  		uint16_t nb_ops, struct rte_cryptodev_sym_session *sess,
  		const struct cperf_options *options,
  		const struct cperf_test_vector *test_vector,
  		uint16_t iv_offset, uint32_t *imix_idx)
  {
  	uint16_t i;
  
  	for (i = 0; i < nb_ops; i++) {
  		struct rte_crypto_sym_op *sym_op = ops[i]->sym;
  
  		ops[i]->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
  		rte_crypto_op_attach_sym_session(ops[i], sess);
  
  		sym_op->m_src = (struct rte_mbuf *)((uint8_t *)ops[i] +
  							src_buf_offset);
  
  		/* Set dest mbuf to NULL if out-of-place (dst_buf_offset = 0) */
  		if (dst_buf_offset == 0)
  			sym_op->m_dst = NULL;
  		else
  			sym_op->m_dst = (struct rte_mbuf *)((uint8_t *)ops[i] +
  							dst_buf_offset);
  
  		/* cipher parameters */
  		if (options->imix_distribution_count) {
  			sym_op->cipher.data.length =
  				options->imix_buffer_sizes[*imix_idx];
  			*imix_idx = (*imix_idx + 1) % options->pool_sz;
  		} else
  			sym_op->cipher.data.length = options->test_buffer_size;
  
  		if (options->cipher_algo == RTE_CRYPTO_CIPHER_SNOW3G_UEA2 ||
  				options->cipher_algo == RTE_CRYPTO_CIPHER_KASUMI_F8 ||
  				options->cipher_algo == RTE_CRYPTO_CIPHER_ZUC_EEA3)
  			sym_op->cipher.data.length <<= 3;
  
  		sym_op->cipher.data.offset = 0;
  
  		/* authentication parameters */
  		if (options->auth_op == RTE_CRYPTO_AUTH_OP_VERIFY) {
  			sym_op->auth.digest.data = test_vector->digest.data;
  			sym_op->auth.digest.phys_addr =
  					test_vector->digest.phys_addr;
  		} else {
  
  			uint32_t offset = options->test_buffer_size;
  			struct rte_mbuf *buf, *tbuf;
  
  			if (options->out_of_place) {
  				buf = sym_op->m_dst;
  			} else {
  				tbuf = sym_op->m_src;
  				while ((tbuf->next != NULL) &&
  						(offset >= tbuf->data_len)) {
  					offset -= tbuf->data_len;
  					tbuf = tbuf->next;
  				}
  				/*
  				 * If there is not enough room in segment,
  				 * place the digest in the next segment
  				 */
  				if ((tbuf->data_len - offset) < options->digest_sz) {
  					tbuf = tbuf->next;
  					offset = 0;
  				}
  				buf = tbuf;
  			}
  
  			sym_op->auth.digest.data = rte_pktmbuf_mtod_offset(buf,
  					uint8_t *, offset);
  			sym_op->auth.digest.phys_addr =
  					rte_pktmbuf_iova_offset(buf, offset);
  		}
  
  		if (options->imix_distribution_count) {
  			sym_op->auth.data.length =
  				options->imix_buffer_sizes[*imix_idx];
  			*imix_idx = (*imix_idx + 1) % options->pool_sz;
  		} else
  			sym_op->auth.data.length = options->test_buffer_size;
  
  		if (options->auth_algo == RTE_CRYPTO_AUTH_SNOW3G_UIA2 ||
  				options->auth_algo == RTE_CRYPTO_AUTH_KASUMI_F9 ||
  				options->auth_algo == RTE_CRYPTO_AUTH_ZUC_EIA3)
  			sym_op->auth.data.length <<= 3;
  
  		sym_op->auth.data.offset = 0;
  	}
  
  	if (options->test == CPERF_TEST_TYPE_VERIFY) {
  		for (i = 0; i < nb_ops; i++) {
  			uint8_t *iv_ptr = rte_crypto_op_ctod_offset(ops[i],
  					uint8_t *, iv_offset);
  
  			memcpy(iv_ptr, test_vector->cipher_iv.data,
  					test_vector->cipher_iv.length);
  			if (test_vector->auth_iv.length) {
  				/*
  				 * Copy IV after the crypto operation and
  				 * the cipher IV
  				 */
  				iv_ptr += test_vector->cipher_iv.length;
  				memcpy(iv_ptr, test_vector->auth_iv.data,
  						test_vector->auth_iv.length);
  			}
  		}
  
  	}
  
  	return 0;
  }
  
  static int
  cperf_set_ops_aead(struct rte_crypto_op **ops,
  		uint32_t src_buf_offset, uint32_t dst_buf_offset,
  		uint16_t nb_ops, struct rte_cryptodev_sym_session *sess,
  		const struct cperf_options *options,
  		const struct cperf_test_vector *test_vector,
  		uint16_t iv_offset, uint32_t *imix_idx)
  {
  	uint16_t i;
  	/* AAD is placed after the IV */
  	uint16_t aad_offset = iv_offset +
  			RTE_ALIGN_CEIL(test_vector->aead_iv.length, 16);
  
  	for (i = 0; i < nb_ops; i++) {
  		struct rte_crypto_sym_op *sym_op = ops[i]->sym;
  
  		ops[i]->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
  		rte_crypto_op_attach_sym_session(ops[i], sess);
  
  		sym_op->m_src = (struct rte_mbuf *)((uint8_t *)ops[i] +
  							src_buf_offset);
  
  		/* Set dest mbuf to NULL if out-of-place (dst_buf_offset = 0) */
  		if (dst_buf_offset == 0)
  			sym_op->m_dst = NULL;
  		else
  			sym_op->m_dst = (struct rte_mbuf *)((uint8_t *)ops[i] +
  							dst_buf_offset);
  
  		/* AEAD parameters */
  		if (options->imix_distribution_count) {
  			sym_op->aead.data.length =
  				options->imix_buffer_sizes[*imix_idx];
  			*imix_idx = (*imix_idx + 1) % options->pool_sz;
  		} else
  			sym_op->aead.data.length = options->test_buffer_size;
  		sym_op->aead.data.offset = 0;
  
  		sym_op->aead.aad.data = rte_crypto_op_ctod_offset(ops[i],
  					uint8_t *, aad_offset);
  		sym_op->aead.aad.phys_addr = rte_crypto_op_ctophys_offset(ops[i],
  					aad_offset);
  
  		if (options->aead_op == RTE_CRYPTO_AEAD_OP_DECRYPT) {
  			sym_op->aead.digest.data = test_vector->digest.data;
  			sym_op->aead.digest.phys_addr =
  					test_vector->digest.phys_addr;
  		} else {
  
  			uint32_t offset = sym_op->aead.data.length +
  						sym_op->aead.data.offset;
  			struct rte_mbuf *buf, *tbuf;
  
  			if (options->out_of_place) {
  				buf = sym_op->m_dst;
  			} else {
  				tbuf = sym_op->m_src;
  				while ((tbuf->next != NULL) &&
  						(offset >= tbuf->data_len)) {
  					offset -= tbuf->data_len;
  					tbuf = tbuf->next;
  				}
  				/*
  				 * If there is not enough room in segment,
  				 * place the digest in the next segment
  				 */
  				if ((tbuf->data_len - offset) < options->digest_sz) {
  					tbuf = tbuf->next;
  					offset = 0;
  				}
  				buf = tbuf;
  			}
  
  			sym_op->aead.digest.data = rte_pktmbuf_mtod_offset(buf,
  					uint8_t *, offset);
  			sym_op->aead.digest.phys_addr =
  					rte_pktmbuf_iova_offset(buf, offset);
  		}
  	}
  
  	if (options->test == CPERF_TEST_TYPE_VERIFY) {
  		for (i = 0; i < nb_ops; i++) {
  			uint8_t *iv_ptr = rte_crypto_op_ctod_offset(ops[i],
  					uint8_t *, iv_offset);
  
  			/*
  			 * If doing AES-CCM, nonce is copied one byte
  			 * after the start of IV field, and AAD is copied
  			 * 18 bytes after the start of the AAD field.
  			 */
  			if (options->aead_algo == RTE_CRYPTO_AEAD_AES_CCM) {
  				memcpy(iv_ptr + 1, test_vector->aead_iv.data,
  					test_vector->aead_iv.length);
  
  				memcpy(ops[i]->sym->aead.aad.data + 18,
  					test_vector->aad.data,
  					test_vector->aad.length);
  			} else {
  				memcpy(iv_ptr, test_vector->aead_iv.data,
  					test_vector->aead_iv.length);
  
  				memcpy(ops[i]->sym->aead.aad.data,
  					test_vector->aad.data,
  					test_vector->aad.length);
  			}
  		}
  	}
  
  	return 0;
  }
  
  static struct rte_cryptodev_sym_session *
  cperf_create_session(struct rte_mempool *sess_mp,
  	uint8_t dev_id,
  	const struct cperf_options *options,
  	const struct cperf_test_vector *test_vector,
  	uint16_t iv_offset)
  {
  	struct rte_crypto_sym_xform cipher_xform;
  	struct rte_crypto_sym_xform auth_xform;
  	struct rte_crypto_sym_xform aead_xform;
  	struct rte_cryptodev_sym_session *sess = NULL;
  
  	sess = rte_cryptodev_sym_session_create(sess_mp);
  	/*
  	 * cipher only
  	 */
  	if (options->op_type == CPERF_CIPHER_ONLY) {
  		cipher_xform.type = RTE_CRYPTO_SYM_XFORM_CIPHER;
  		cipher_xform.next = NULL;
  		cipher_xform.cipher.algo = options->cipher_algo;
  		cipher_xform.cipher.op = options->cipher_op;
  		cipher_xform.cipher.iv.offset = iv_offset;
  
  		/* cipher different than null */
  		if (options->cipher_algo != RTE_CRYPTO_CIPHER_NULL) {
  			cipher_xform.cipher.key.data =
  					test_vector->cipher_key.data;
  			cipher_xform.cipher.key.length =
  					test_vector->cipher_key.length;
  			cipher_xform.cipher.iv.length =
  					test_vector->cipher_iv.length;
  		} else {
  			cipher_xform.cipher.key.data = NULL;
  			cipher_xform.cipher.key.length = 0;
  			cipher_xform.cipher.iv.length = 0;
  		}
  		/* create crypto session */
  		rte_cryptodev_sym_session_init(dev_id, sess, &cipher_xform,
  				sess_mp);
  	/*
  	 *  auth only
  	 */
  	} else if (options->op_type == CPERF_AUTH_ONLY) {
  		auth_xform.type = RTE_CRYPTO_SYM_XFORM_AUTH;
  		auth_xform.next = NULL;
  		auth_xform.auth.algo = options->auth_algo;
  		auth_xform.auth.op = options->auth_op;
  		auth_xform.auth.iv.offset = iv_offset;
  
  		/* auth different than null */
  		if (options->auth_algo != RTE_CRYPTO_AUTH_NULL) {
  			auth_xform.auth.digest_length =
  					options->digest_sz;
  			auth_xform.auth.key.length =
  					test_vector->auth_key.length;
  			auth_xform.auth.key.data = test_vector->auth_key.data;
  			auth_xform.auth.iv.length =
  					test_vector->auth_iv.length;
  		} else {
  			auth_xform.auth.digest_length = 0;
  			auth_xform.auth.key.length = 0;
  			auth_xform.auth.key.data = NULL;
  			auth_xform.auth.iv.length = 0;
  		}
  		/* create crypto session */
  		rte_cryptodev_sym_session_init(dev_id, sess, &auth_xform,
  				sess_mp);
  	/*
  	 * cipher and auth
  	 */
  	} else if (options->op_type == CPERF_CIPHER_THEN_AUTH
  			|| options->op_type == CPERF_AUTH_THEN_CIPHER) {
  		/*
  		 * cipher
  		 */
  		cipher_xform.type = RTE_CRYPTO_SYM_XFORM_CIPHER;
  		cipher_xform.next = NULL;
  		cipher_xform.cipher.algo = options->cipher_algo;
  		cipher_xform.cipher.op = options->cipher_op;
  		cipher_xform.cipher.iv.offset = iv_offset;
  
  		/* cipher different than null */
  		if (options->cipher_algo != RTE_CRYPTO_CIPHER_NULL) {
  			cipher_xform.cipher.key.data =
  					test_vector->cipher_key.data;
  			cipher_xform.cipher.key.length =
  					test_vector->cipher_key.length;
  			cipher_xform.cipher.iv.length =
  					test_vector->cipher_iv.length;
  		} else {
  			cipher_xform.cipher.key.data = NULL;
  			cipher_xform.cipher.key.length = 0;
  			cipher_xform.cipher.iv.length = 0;
  		}
  
  		/*
  		 * auth
  		 */
  		auth_xform.type = RTE_CRYPTO_SYM_XFORM_AUTH;
  		auth_xform.next = NULL;
  		auth_xform.auth.algo = options->auth_algo;
  		auth_xform.auth.op = options->auth_op;
  		auth_xform.auth.iv.offset = iv_offset +
  			cipher_xform.cipher.iv.length;
  
  		/* auth different than null */
  		if (options->auth_algo != RTE_CRYPTO_AUTH_NULL) {
  			auth_xform.auth.digest_length = options->digest_sz;
  			auth_xform.auth.iv.length = test_vector->auth_iv.length;
  			auth_xform.auth.key.length =
  					test_vector->auth_key.length;
  			auth_xform.auth.key.data =
  					test_vector->auth_key.data;
  		} else {
  			auth_xform.auth.digest_length = 0;
  			auth_xform.auth.key.length = 0;
  			auth_xform.auth.key.data = NULL;
  			auth_xform.auth.iv.length = 0;
  		}
  
  		/* cipher then auth */
  		if (options->op_type == CPERF_CIPHER_THEN_AUTH) {
  			cipher_xform.next = &auth_xform;
  			/* create crypto session */
  			rte_cryptodev_sym_session_init(dev_id,
  					sess, &cipher_xform, sess_mp);
  		} else { /* auth then cipher */
  			auth_xform.next = &cipher_xform;
  			/* create crypto session */
  			rte_cryptodev_sym_session_init(dev_id,
  					sess, &auth_xform, sess_mp);
  		}
  	} else { /* options->op_type == CPERF_AEAD */
  		aead_xform.type = RTE_CRYPTO_SYM_XFORM_AEAD;
  		aead_xform.next = NULL;
  		aead_xform.aead.algo = options->aead_algo;
  		aead_xform.aead.op = options->aead_op;
  		aead_xform.aead.iv.offset = iv_offset;
  
  		aead_xform.aead.key.data =
  					test_vector->aead_key.data;
  		aead_xform.aead.key.length =
  					test_vector->aead_key.length;
  		aead_xform.aead.iv.length = test_vector->aead_iv.length;
  
  		aead_xform.aead.digest_length = options->digest_sz;
  		aead_xform.aead.aad_length =
  					options->aead_aad_sz;
  
  		/* Create crypto session */
  		rte_cryptodev_sym_session_init(dev_id,
  					sess, &aead_xform, sess_mp);
  	}
  
  	return sess;
  }
  
  int
  cperf_get_op_functions(const struct cperf_options *options,
  		struct cperf_op_fns *op_fns)
  {
  	memset(op_fns, 0, sizeof(struct cperf_op_fns));
  
  	op_fns->sess_create = cperf_create_session;
  
  	if (options->op_type == CPERF_AEAD) {
  		op_fns->populate_ops = cperf_set_ops_aead;
  		return 0;
  	}
  
  	if (options->op_type == CPERF_AUTH_THEN_CIPHER
  			|| options->op_type == CPERF_CIPHER_THEN_AUTH) {
  		op_fns->populate_ops = cperf_set_ops_cipher_auth;
  		return 0;
  	}
  	if (options->op_type == CPERF_AUTH_ONLY) {
  		if (options->auth_algo == RTE_CRYPTO_AUTH_NULL)
  			op_fns->populate_ops = cperf_set_ops_null_auth;
  		else
  			op_fns->populate_ops = cperf_set_ops_auth;
  		return 0;
  	}
  	if (options->op_type == CPERF_CIPHER_ONLY) {
  		if (options->cipher_algo == RTE_CRYPTO_CIPHER_NULL)
  			op_fns->populate_ops = cperf_set_ops_null_cipher;
  		else
  			op_fns->populate_ops = cperf_set_ops_cipher;
  		return 0;
  	}
  
  	return -1;
  }
  