diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe/ixgbe_main.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 48 |
1 files changed, 32 insertions, 16 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 9c42679ad83e..7be35043b751 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -2688,8 +2688,7 @@ void ixgbe_configure_tx_ring(struct ixgbe_adapter *adapter, 32; /* PTHRESH = 32 */ /* reinitialize flowdirector state */ - if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) && - adapter->atr_sample_rate) { + if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { ring->atr_sample_rate = adapter->atr_sample_rate; ring->atr_count = 0; set_bit(__IXGBE_TX_FDIR_INIT_DONE, &ring->state); @@ -4419,7 +4418,6 @@ static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter) if (hw->device_id == IXGBE_DEV_ID_82599_T3_LOM) adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE; /* Flow Director hash filters enabled */ - adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; adapter->atr_sample_rate = 20; adapter->ring_feature[RING_F_FDIR].limit = IXGBE_MAX_FDIR_INDICES; @@ -6726,7 +6724,6 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc) ixgbe_set_prio_tc_map(adapter); adapter->flags |= IXGBE_FLAG_DCB_ENABLED; - adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; if (adapter->hw.mac.type == ixgbe_mac_82598EB) { adapter->last_lfc_mode = adapter->hw.fc.requested_mode; @@ -6739,7 +6736,6 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc) adapter->hw.fc.requested_mode = adapter->last_lfc_mode; adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED; - adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; adapter->temp_dcb_cfg.pfc_mode_enable = false; adapter->dcb_cfg.pfc_mode_enable = false; @@ -6808,20 +6804,40 @@ static int ixgbe_set_features(struct net_device *netdev, * Check if Flow Director n-tuple support was enabled or disabled. If * the state changed, we need to reset. */ - if (!(features & NETIF_F_NTUPLE)) { - if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) { - /* turn off Flow Director, set ATR and reset */ - if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) && - !(adapter->flags & IXGBE_FLAG_DCB_ENABLED)) - adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; - need_reset = true; - } - adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE; - } else if (!(adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) { + switch (features & NETIF_F_NTUPLE) { + case NETIF_F_NTUPLE: /* turn off ATR, enable perfect filters and reset */ + if (!(adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) + need_reset = true; + adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; adapter->flags |= IXGBE_FLAG_FDIR_PERFECT_CAPABLE; - need_reset = true; + break; + default: + /* turn off perfect filters, enable ATR and reset */ + if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) + need_reset = true; + + adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE; + + /* We cannot enable ATR if SR-IOV is enabled */ + if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) + break; + + /* We cannot enable ATR if we have 2 or more traffic classes */ + if (netdev_get_num_tc(netdev) > 1) + break; + + /* We cannot enable ATR if RSS is disabled */ + if (adapter->ring_feature[RING_F_RSS].limit <= 1) + break; + + /* A sample rate of 0 indicates ATR disabled */ + if (!adapter->atr_sample_rate) + break; + + adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; + break; } if (features & NETIF_F_HW_VLAN_RX) |