Function mvneta_dev_start

dpdk/drivers/net/mvneta/mvneta_ethdev.c:331–402

* DPDK callback to start the device. * * @param dev * Pointer to Ethernet device structure. * * @return * 0 on success, negative errno value on failure. */

 *   0 on success, negative errno value on failure.
 */
static int
mvneta_dev_start(struct rte_eth_dev *dev)
{
	struct mvneta_priv *priv = dev->data->dev_private;
	char match[MVNETA_MATCH_LEN];
	int ret = 0, i;

	if (priv->ppio)
		return mvneta_dev_set_link_up(dev);

	strlcpy(match, dev->data->name, sizeof(match));
	priv->ppio_params.match = match;
	priv->ppio_params.inqs_params.mtu = dev->data->mtu;

	ret = neta_ppio_init(&priv->ppio_params, &priv->ppio);
	if (ret) {
		MVNETA_LOG(ERR, "Failed to init ppio");
		return ret;
	}
	priv->ppio_id = priv->ppio->port_id;

	mvneta_stats_reset(dev);

	/*
	 * In case there are some stale uc/mc mac addresses flush them
	 * here. It cannot be done during mvneta_dev_close() as port information
	 * is already gone at that point (due to neta_ppio_deinit() in
	 * mvneta_dev_stop()).
	 */
	if (!priv->uc_mc_flushed) {
		ret = neta_ppio_flush_mac_addrs(priv->ppio, 0, 1);
		if (ret) {
			MVNETA_LOG(ERR,
				"Failed to flush uc/mc filter list");
			goto out;
		}
		priv->uc_mc_flushed = 1;
	}

	ret = mvneta_alloc_rx_bufs(dev);
	if (ret)
		goto out;

	ret = mvneta_mtu_set(dev, dev->data->mtu);
	if (ret) {
		MVNETA_LOG(ERR, "Failed to set MTU %d", dev->data->mtu);
		goto out;
	}

	ret = mvneta_dev_set_link_up(dev);
	if (ret) {
		MVNETA_LOG(ERR, "Failed to set link up");
		goto out;
	}

	/* start rx queues */
	for (i = 0; i < dev->data->nb_rx_queues; i++)
		dev->data->rx_queue_state[i] = RTE_ETH_QUEUE_STATE_STARTED;