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
......@@ -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
......
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