Function rte_cryptodev_pmd_allocate

dpdk/lib/cryptodev/rte_cryptodev.c:1053–1110

}

struct rte_cryptodev *
rte_cryptodev_pmd_allocate(const char *name, int socket_id)
{
	struct rte_cryptodev *cryptodev;
	uint8_t dev_id;

	if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
		CDEV_LOG_ERR("Crypto device with name %s already "
				"allocated!", name);
		return NULL;
	}

	dev_id = rte_cryptodev_find_free_device_index();
	if (dev_id == RTE_CRYPTO_MAX_DEVS) {
		CDEV_LOG_ERR("Reached maximum number of crypto devices");
		return NULL;
	}

	cryptodev = rte_cryptodev_pmd_get_dev(dev_id);

	if (cryptodev->data == NULL) {
		struct rte_cryptodev_data **cryptodev_data =
				&cryptodev_globals.data[dev_id];

		int retval = rte_cryptodev_data_alloc(dev_id, cryptodev_data,
				socket_id);

		if (retval < 0 || *cryptodev_data == NULL)
			return NULL;

		cryptodev->data = *cryptodev_data;

		if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
			strlcpy(cryptodev->data->name, name,
				RTE_CRYPTODEV_NAME_MAX_LEN);

			cryptodev->data->dev_id = dev_id;
			cryptodev->data->socket_id = socket_id;
			cryptodev->data->dev_started = 0;
			CDEV_LOG_DEBUG("PRIMARY:init data");
		}

		CDEV_LOG_DEBUG("Data for %s: dev_id %d, socket %d, started %d",
				cryptodev->data->name,
				cryptodev->data->dev_id,
				cryptodev->data->socket_id,
				cryptodev->data->dev_started);

		/* init user callbacks */
		TAILQ_INIT(&(cryptodev->link_intr_cbs));

		cryptodev->attached = RTE_CRYPTODEV_ATTACHED;

		cryptodev_globals.nb_devs++;
	}

	return cryptodev;
}