diff options
| author | Camelia Groza <camelia.groza@nxp.com> | 2016-07-25 13:54:56 (GMT) |
|---|---|---|
| committer | Xie Xiaobo <xiaobo.xie@nxp.com> | 2017-12-12 07:32:35 (GMT) |
| commit | 900d3eb56c13750553839ff2d52593b1b2e772e4 (patch) | |
| tree | f4cff9fbe66601da7a2fee8deb5744c13635245e | |
| parent | d9513da47109a0e8f47e45c8444c7cd5977feb04 (diff) | |
| download | linux-900d3eb56c13750553839ff2d52593b1b2e772e4.tar.xz | |
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: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
| -rw-r--r-- | drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c index ac75d09..1b3ea38 100644 --- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c @@ -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) |