From c27931da83bc486e192c8dfdab903ba51e176c54 Mon Sep 17 00:00:00 2001 From: John Fastabend Date: Wed, 23 Feb 2011 05:58:25 +0000 Subject: [PATCH] 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: John Fastabend Tested-by: Ross Brattain Signed-off-by: Jeff Kirsher --- drivers/net/ixgbe/ixgbe_main.c | 30 ++++++++++++++++++++---------- 1 file changed, 20 insertions(+), 10 deletions(-) diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index be2e145646bf..38f9758c4c44 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -3658,15 +3658,6 @@ static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter) if (hw->mac.type == ixgbe_mac_82598EB) netif_set_gso_max_size(adapter->netdev, 32768); -#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; @@ -3674,7 +3665,26 @@ static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter) hw->mac.ops.set_vfta(&adapter->hw, 0, 0, true); /* reconfigure the hardware */ - ixgbe_dcb_hw_config(hw, &adapter->dcb_cfg); + 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); + 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) {