[patch net] e1000: fix vlan processing regression
From: Jiri Pirko <hidden>
Date: 2012-03-20 09:57:53
This patch fixes a regression introduced by commit "e1000: do vlan cleanup (799d531)". Apparently some e1000 chips (not mine) are sensitive about the order of setting vlan filter and vlan stripping/inserting functionality. So this patch changes the order so it's the same as before vlan cleanup. Reported-by: Ben Greear <redacted> Tested-by: Ben Greear <redacted> Signed-off-by: Jiri Pirko <redacted> --- drivers/net/ethernet/intel/e1000/e1000_main.c | 35 +++++++++++++++--------- 1 files changed, 22 insertions(+), 13 deletions(-)
diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
index d94d64b..b444f21 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_main.c@@ -164,6 +164,8 @@ static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter, static bool e1000_vlan_used(struct e1000_adapter *adapter); static void e1000_vlan_mode(struct net_device *netdev, netdev_features_t features); +static void e1000_vlan_filter_on_off(struct e1000_adapter *adapter, + bool filter_on); static int e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid); static int e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid); static void e1000_restore_vlan(struct e1000_adapter *adapter);
@@ -1213,7 +1215,7 @@ static int __devinit e1000_probe(struct pci_dev *pdev, if (err) goto err_register; - e1000_vlan_mode(netdev, netdev->features); + e1000_vlan_filter_on_off(adapter, false); /* print bus type/speed/width info */ e_info(probe, "(PCI%s:%dMHz:%d-bit) %pM\n",
@@ -4549,6 +4551,22 @@ static bool e1000_vlan_used(struct e1000_adapter *adapter) return false; } +static void __e1000_vlan_mode(struct e1000_adapter *adapter, + netdev_features_t features) +{ + struct e1000_hw *hw = &adapter->hw; + u32 ctrl; + + ctrl = er32(CTRL); + if (features & NETIF_F_HW_VLAN_RX) { + /* enable VLAN tag insert/strip */ + ctrl |= E1000_CTRL_VME; + } else { + /* disable VLAN tag insert/strip */ + ctrl &= ~E1000_CTRL_VME; + } + ew32(CTRL, ctrl); +} static void e1000_vlan_filter_on_off(struct e1000_adapter *adapter, bool filter_on) {
@@ -4558,6 +4576,7 @@ static void e1000_vlan_filter_on_off(struct e1000_adapter *adapter, if (!test_bit(__E1000_DOWN, &adapter->flags)) e1000_irq_disable(adapter); + __e1000_vlan_mode(adapter, adapter->netdev->features); if (filter_on) { /* enable VLAN receive filtering */ rctl = er32(RCTL);
@@ -4578,24 +4597,14 @@ static void e1000_vlan_filter_on_off(struct e1000_adapter *adapter, } static void e1000_vlan_mode(struct net_device *netdev, - netdev_features_t features) + netdev_features_t features) { struct e1000_adapter *adapter = netdev_priv(netdev); - struct e1000_hw *hw = &adapter->hw; - u32 ctrl; if (!test_bit(__E1000_DOWN, &adapter->flags)) e1000_irq_disable(adapter); - ctrl = er32(CTRL); - if (features & NETIF_F_HW_VLAN_RX) { - /* enable VLAN tag insert/strip */ - ctrl |= E1000_CTRL_VME; - } else { - /* disable VLAN tag insert/strip */ - ctrl &= ~E1000_CTRL_VME; - } - ew32(CTRL, ctrl); + __e1000_vlan_mode(adapter, features); if (!test_bit(__E1000_DOWN, &adapter->flags)) e1000_irq_enable(adapter);
--
1.7.6.4
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