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dpaa_eth: enable multiple Tx traffic classes

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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: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
This commit is contained in:
Camelia Groza 2016-07-25 16:54:56 +03:00 committed by Madalin Bucur
parent c44efa1d75
commit 2ea08f8261
1 changed files with 36 additions and 0 deletions
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36
drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
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@ -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)