Function mvneta_eth_dev_create

dpdk/drivers/net/mvneta/mvneta_ethdev.c:810–858

* Create device representing Ethernet port. * * @param name * Pointer to the port's name. * * @return * 0 on success, negative error value otherwise. */

 *   0 on success, negative error value otherwise.
 */
static int
mvneta_eth_dev_create(struct rte_vdev_device *vdev, const char *name)
{
	int ret, fd = socket(AF_INET, SOCK_DGRAM, 0);
	struct rte_eth_dev *eth_dev;
	struct mvneta_priv *priv;
	struct ifreq req;

	eth_dev = rte_eth_dev_allocate(name);
	if (!eth_dev)
		return -ENOMEM;

	priv = rte_zmalloc_socket(name, sizeof(*priv), 0, rte_socket_id());
	if (!priv) {
		ret = -ENOMEM;
		goto out_free;
	}
	eth_dev->data->dev_private = priv;

	eth_dev->data->mac_addrs =
		rte_zmalloc("mac_addrs",
			    RTE_ETHER_ADDR_LEN * MVNETA_MAC_ADDRS_MAX, 0);
	if (!eth_dev->data->mac_addrs) {
		MVNETA_LOG(ERR, "Failed to allocate space for eth addrs");
		ret = -ENOMEM;
		goto out_free;
	}

	memset(&req, 0, sizeof(req));
	strcpy(req.ifr_name, name);
	ret = ioctl(fd, SIOCGIFHWADDR, &req);
	if (ret)
		goto out_free;

	memcpy(eth_dev->data->mac_addrs[0].addr_bytes,
	       req.ifr_addr.sa_data, RTE_ETHER_ADDR_LEN);

	eth_dev->device = &vdev->device;
	eth_dev->rx_pkt_burst = mvneta_rx_pkt_burst;
	mvneta_set_tx_function(eth_dev);
	eth_dev->dev_ops = &mvneta_ops;

	rte_eth_dev_probing_finish(eth_dev);
	return 0;
out_free:
	rte_eth_dev_release_port(eth_dev);

	return ret;
}

/**
 * Cleanup previously created device representing Ethernet port.