Commit c27931da authored by John Fastabend's avatar John Fastabend Committed by Jeff Kirsher
Browse files

ixgbe: DCB during ifup use correct CEE or IEEE mode 



DCB settings are cleared in the hardware across link events
during ifup ixgbe reprograms the hardware for DCB if it is
enabled. Now that we have two modes CEE or IEEE we need to
use the correct set of configuration data.

This patch checks the dcbx_cap bits and then enables the
device in the correct mode.

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 17049d30

drivers/net/ixgbe/ixgbe_main.c

+20 −10
Original line number Diff line number Diff line
@@ -3658,23 +3658,33 @@ static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter) 
	if (hw->mac.type == ixgbe_mac_82598EB)

		netif_set_gso_max_size(adapter->netdev, 32768);





	/* Enable VLAN tag insert/strip */

	adapter->netdev->features |= NETIF_F_HW_VLAN_RX;



	hw->mac.ops.set_vfta(&adapter->hw, 0, 0, true);



	/* reconfigure the hardware */

	if (adapter->dcbx_cap & (DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_CEE)) {

#ifdef CONFIG_FCOE

		if (adapter->netdev->features & NETIF_F_FCOE_MTU)

			max_frame = max(max_frame, IXGBE_FCOE_JUMBO_FRAME_SIZE);

#endif



		ixgbe_dcb_calculate_tc_credits(hw, &adapter->dcb_cfg, max_frame,

						DCB_TX_CONFIG);

		ixgbe_dcb_calculate_tc_credits(hw, &adapter->dcb_cfg, max_frame,

						DCB_RX_CONFIG);



	/* Enable VLAN tag insert/strip */

	adapter->netdev->features |= NETIF_F_HW_VLAN_RX;



	hw->mac.ops.set_vfta(&adapter->hw, 0, 0, true);



	/* reconfigure the hardware */

		ixgbe_dcb_hw_config(hw, &adapter->dcb_cfg);

	} else {

		struct net_device *dev = adapter->netdev;



		if (adapter->ixgbe_ieee_ets)

			dev->dcbnl_ops->ieee_setets(dev,

						    adapter->ixgbe_ieee_ets);

		if (adapter->ixgbe_ieee_pfc)

			dev->dcbnl_ops->ieee_setpfc(dev,

						    adapter->ixgbe_ieee_pfc);

	}



	/* Enable RSS Hash per TC */

	if (hw->mac.type != ixgbe_mac_82598EB) {

CRA Git | Maintained and supported by SUSTech CRA and CCSE