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Commit 24095aa3 authored by John Fastabend's avatar John Fastabend Committed by Jeff Kirsher
Browse files

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: default avatarJohn Fastabend <john.r.fastabend@intel.com>
Tested-by: default avatarRoss Brattain <ross.b.brattain.@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent e5b64635

drivers/net/ixgbe/ixgbe_main.c

+23 −1
Original line number Diff line number Diff line
@@ -4606,7 +4606,10 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc) 
	if (!tc) {

		netdev_reset_tc(dev);

	} else {

		if (netdev_set_num_tc(dev, tc))

		struct ixgbe_adapter *adapter = netdev_priv(dev);



		/* Hardware supports up to 8 traffic classes */

		if (tc > MAX_TRAFFIC_CLASS || netdev_set_num_tc(dev, tc))

			return -EINVAL;



		/* Partition Tx queues evenly amongst traffic classes */
@@ -4616,6 +4619,22 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc) 
			netdev_set_tc_queue(dev, i, q, offset);

			offset += q;

		}



		/* This enables multiple traffic class support in the hardware

		 * which defaults to strict priority transmission by default.

		 * If traffic classes are already enabled perhaps through DCB

		 * code path then existing configuration will be used.

		 */

		if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED) &&

		    dev->dcbnl_ops && dev->dcbnl_ops->setdcbx) {

			struct ieee_ets ets = {

					.prio_tc = {0, 1, 2, 3, 4, 5, 6, 7},

					      };

			u8 mode = DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_IEEE;



			dev->dcbnl_ops->setdcbx(dev, mode);

			dev->dcbnl_ops->ieee_setets(dev, &ets);

		}

	}

	return 0;

}
@@ -7022,6 +7041,9 @@ static const struct net_device_ops ixgbe_netdev_ops = { 
	.ndo_set_vf_tx_rate	= ixgbe_ndo_set_vf_bw,

	.ndo_get_vf_config	= ixgbe_ndo_get_vf_config,

	.ndo_get_stats64	= ixgbe_get_stats64,

#ifdef CONFIG_IXGBE_DCB

	.ndo_setup_tc		= ixgbe_setup_tc,

#endif

#ifdef CONFIG_NET_POLL_CONTROLLER

	.ndo_poll_controller	= ixgbe_netpoll,

#endif