+
+#ifdef RTE_LIB_SECURITY
+static int
+qat_sec_session_check_docsis(struct rte_security_session_conf *conf)
+{
+ struct rte_crypto_sym_xform *crypto_sym = conf->crypto_xform;
+ struct rte_security_docsis_xform *docsis = &conf->docsis;
+
+ /* CRC generate -> Cipher encrypt */
+ if (docsis->direction == RTE_SECURITY_DOCSIS_DOWNLINK) {
+
+ if (crypto_sym != NULL &&
+ crypto_sym->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
+ crypto_sym->cipher.op == RTE_CRYPTO_CIPHER_OP_ENCRYPT &&
+ crypto_sym->cipher.algo ==
+ RTE_CRYPTO_CIPHER_AES_DOCSISBPI &&
+ (crypto_sym->cipher.key.length ==
+ ICP_QAT_HW_AES_128_KEY_SZ ||
+ crypto_sym->cipher.key.length ==
+ ICP_QAT_HW_AES_256_KEY_SZ) &&
+ crypto_sym->cipher.iv.length == ICP_QAT_HW_AES_BLK_SZ &&
+ crypto_sym->next == NULL) {
+ return 0;
+ }
+ /* Cipher decrypt -> CRC verify */
+ } else if (docsis->direction == RTE_SECURITY_DOCSIS_UPLINK) {
+
+ if (crypto_sym != NULL &&
+ crypto_sym->type == RTE_CRYPTO_SYM_XFORM_CIPHER &&
+ crypto_sym->cipher.op == RTE_CRYPTO_CIPHER_OP_DECRYPT &&
+ crypto_sym->cipher.algo ==
+ RTE_CRYPTO_CIPHER_AES_DOCSISBPI &&
+ (crypto_sym->cipher.key.length ==
+ ICP_QAT_HW_AES_128_KEY_SZ ||
+ crypto_sym->cipher.key.length ==
+ ICP_QAT_HW_AES_256_KEY_SZ) &&
+ crypto_sym->cipher.iv.length == ICP_QAT_HW_AES_BLK_SZ &&
+ crypto_sym->next == NULL) {
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static int
+qat_sec_session_set_docsis_parameters(struct rte_cryptodev *dev,
+ struct rte_security_session_conf *conf, void *session_private)
+{
+ int ret;
+ int qat_cmd_id;
+ struct rte_crypto_sym_xform *xform = NULL;
+ struct qat_sym_session *session = session_private;
+
+ /* Clear the session */
+ memset(session, 0, qat_sym_session_get_private_size(dev));
+
+ ret = qat_sec_session_check_docsis(conf);
+ if (ret) {
+ QAT_LOG(ERR, "Unsupported DOCSIS security configuration");
+ return ret;
+ }
+
+ xform = conf->crypto_xform;
+
+ /* Verify the session physical address is known */
+ rte_iova_t session_paddr = rte_mempool_virt2iova(session);
+ if (session_paddr == 0 || session_paddr == RTE_BAD_IOVA) {
+ QAT_LOG(ERR,
+ "Session physical address unknown. Bad memory pool.");
+ return -EINVAL;
+ }
+
+ /* Set context descriptor physical address */
+ session->cd_paddr = session_paddr +
+ offsetof(struct qat_sym_session, cd);
+
+ session->min_qat_dev_gen = QAT_GEN1;
+
+ /* Get requested QAT command id - should be cipher */
+ qat_cmd_id = qat_get_cmd_id(xform);
+ if (qat_cmd_id != ICP_QAT_FW_LA_CMD_CIPHER) {
+ QAT_LOG(ERR, "Unsupported xform chain requested");
+ return -ENOTSUP;
+ }
+ session->qat_cmd = (enum icp_qat_fw_la_cmd_id)qat_cmd_id;
+
+ ret = qat_sym_session_configure_cipher(dev, xform, session);
+ if (ret < 0)
+ return ret;
+ qat_sym_session_finalize(session);
+
+ return 0;
+}
+
+int
+qat_security_session_create(void *dev,
+ struct rte_security_session_conf *conf,
+ struct rte_security_session *sess,
+ struct rte_mempool *mempool)
+{
+ void *sess_private_data;
+ struct rte_cryptodev *cdev = (struct rte_cryptodev *)dev;
+ int ret;
+
+ if (conf->action_type != RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL ||
+ conf->protocol != RTE_SECURITY_PROTOCOL_DOCSIS) {
+ QAT_LOG(ERR, "Invalid security protocol");
+ return -EINVAL;
+ }
+
+ if (rte_mempool_get(mempool, &sess_private_data)) {
+ QAT_LOG(ERR, "Couldn't get object from session mempool");
+ return -ENOMEM;
+ }
+
+ ret = qat_sec_session_set_docsis_parameters(cdev, conf,
+ sess_private_data);
+ if (ret != 0) {
+ QAT_LOG(ERR, "Failed to configure session parameters");
+ /* Return session to mempool */
+ rte_mempool_put(mempool, sess_private_data);
+ return ret;
+ }
+
+ set_sec_session_private_data(sess, sess_private_data);
+
+ return ret;
+}
+
+int
+qat_security_session_destroy(void *dev __rte_unused,
+ struct rte_security_session *sess)
+{
+ void *sess_priv = get_sec_session_private_data(sess);
+ struct qat_sym_session *s = (struct qat_sym_session *)sess_priv;
+
+ if (sess_priv) {
+ if (s->bpi_ctx)
+ bpi_cipher_ctx_free(s->bpi_ctx);
+ memset(s, 0, qat_sym_session_get_private_size(dev));
+ struct rte_mempool *sess_mp = rte_mempool_from_obj(sess_priv);
+
+ set_sec_session_private_data(sess, NULL);
+ rte_mempool_put(sess_mp, sess_priv);
+ }
+ return 0;
+}
+#endif