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Commit 2ea08f82 authored by Camelia Groza's avatar Camelia Groza Committed by Madalin Bucur
Browse files

dpaa_eth: enable multiple Tx traffic classes 



Implement the setup_tc ndo to configure prioritised Tx traffic classes.
Priorities range from 0 (lowest) to 3 (highest). The driver assigns
NR_CPUS queues to each traffic class.

Signed-off-by: default avatarCamelia Groza <camelia.groza@nxp.com>
Signed-off-by: default avatarMadalin Bucur <madalin.bucur@nxp.com>
parent c44efa1d

drivers/net/ethernet/freescale/dpaa/dpaa_eth.c

+36 −0
Original line number Diff line number Diff line
@@ -342,6 +342,41 @@ static void dpaa_get_stats64(struct net_device *net_dev, 
	}

}



static int dpaa_setup_tc(struct net_device *net_dev, u32 handle, __be16 proto,

			 struct tc_to_netdev *tc)

{

	struct dpaa_priv *priv = netdev_priv(net_dev);

	int i;



	if (tc->type != TC_SETUP_MQPRIO)

		return -EINVAL;



	if (tc->tc == priv->num_tc)

		return 0;



	if (!tc->tc) {

		netdev_reset_tc(net_dev);

		goto out;

	}



	if (tc->tc > DPAA_TC_NUM) {

		netdev_err(net_dev, "Too many traffic classes: max %d supported.\n",

			   DPAA_TC_NUM);

		return -EINVAL;

	}



	netdev_set_num_tc(net_dev, tc->tc);



	for (i = 0; i < tc->tc; i++)

		netdev_set_tc_queue(net_dev, i, DPAA_TC_TXQ_NUM,

				    i * DPAA_TC_TXQ_NUM);



out:

	priv->num_tc = tc->tc ? tc->tc : 1;

	netif_set_real_num_tx_queues(net_dev, priv->num_tc * DPAA_TC_TXQ_NUM);

	return 0;

}



static struct mac_device *dpaa_mac_dev_get(struct platform_device *pdev)

{

	struct platform_device *of_dev;
@@ -2417,6 +2452,7 @@ static const struct net_device_ops dpaa_ops = { 
	.ndo_validate_addr = eth_validate_addr,

	.ndo_set_rx_mode = dpaa_set_rx_mode,

	.ndo_do_ioctl = dpaa_ioctl,

	.ndo_setup_tc = dpaa_setup_tc,

};



static int dpaa_napi_add(struct net_device *net_dev)