ixgbe: enable ndo_tc_setup
This patch adds the ndo_tc_setup to ixgbe. By default we set the device to use strict priority. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Tested-by: Ross Brattain <ross.b.brattain.@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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1 changed files with 23 additions and 1 deletions
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@ -4606,7 +4606,10 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc)
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if (!tc) {
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netdev_reset_tc(dev);
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} else {
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if (netdev_set_num_tc(dev, tc))
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struct ixgbe_adapter *adapter = netdev_priv(dev);
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/* Hardware supports up to 8 traffic classes */
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if (tc > MAX_TRAFFIC_CLASS || netdev_set_num_tc(dev, tc))
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return -EINVAL;
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/* Partition Tx queues evenly amongst traffic classes */
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@ -4616,6 +4619,22 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc)
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netdev_set_tc_queue(dev, i, q, offset);
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offset += q;
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}
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/* This enables multiple traffic class support in the hardware
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* which defaults to strict priority transmission by default.
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* If traffic classes are already enabled perhaps through DCB
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* code path then existing configuration will be used.
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*/
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if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED) &&
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dev->dcbnl_ops && dev->dcbnl_ops->setdcbx) {
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struct ieee_ets ets = {
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.prio_tc = {0, 1, 2, 3, 4, 5, 6, 7},
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};
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u8 mode = DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_IEEE;
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dev->dcbnl_ops->setdcbx(dev, mode);
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dev->dcbnl_ops->ieee_setets(dev, &ets);
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}
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}
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return 0;
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}
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@ -7022,6 +7041,9 @@ static const struct net_device_ops ixgbe_netdev_ops = {
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.ndo_set_vf_tx_rate = ixgbe_ndo_set_vf_bw,
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.ndo_get_vf_config = ixgbe_ndo_get_vf_config,
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.ndo_get_stats64 = ixgbe_get_stats64,
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#ifdef CONFIG_IXGBE_DCB
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.ndo_setup_tc = ixgbe_setup_tc,
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#endif
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#ifdef CONFIG_NET_POLL_CONTROLLER
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.ndo_poll_controller = ixgbe_netpoll,
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#endif
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