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ixgbe: fix tag stripping for VLAN ID 0

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Register VLAN ID 0 so that frames with VLAN ID 0 are received and get
their tag stripped when ixgbe is not in DCB mode.  VLAN ID 0 means
that the frame is 'priority tagged' only - it is not a VLAN, but the
priority value is the tag in valid.  The functions
ixgbe_vlan_rx_register() and ixgbe_vlan_rx_kill_vid() were moved up a
couple functions to correct compiling issues with this change.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Eric W Multanen <eric.w.multanen@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Don Skidmore 2009-01-19 16:54:36 -08:00 committed by David S. Miller
parent 15005a3204
commit 068c89b014
1 changed files with 33 additions and 32 deletions
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65
drivers/net/ixgbe/ixgbe_main.c
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@ -1744,38 +1744,6 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter)
IXGBE_WRITE_REG(hw, IXGBE_RXCSUM, rxcsum);
}
static void ixgbe_vlan_rx_register(struct net_device *netdev,
struct vlan_group *grp)
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
u32 ctrl;
if (!test_bit(__IXGBE_DOWN, &adapter->state))
ixgbe_irq_disable(adapter);
adapter->vlgrp = grp;
/*
* For a DCB driver, always enable VLAN tag stripping so we can
* still receive traffic from a DCB-enabled host even if we're
* not in DCB mode.
*/
ctrl = IXGBE_READ_REG(&adapter->hw, IXGBE_VLNCTRL);
ctrl |= IXGBE_VLNCTRL_VME;
ctrl &= ~IXGBE_VLNCTRL_CFIEN;
IXGBE_WRITE_REG(&adapter->hw, IXGBE_VLNCTRL, ctrl);
if (grp) {
/* enable VLAN tag insert/strip */
ctrl = IXGBE_READ_REG(&adapter->hw, IXGBE_VLNCTRL);
ctrl |= IXGBE_VLNCTRL_VME;
ctrl &= ~IXGBE_VLNCTRL_CFIEN;
IXGBE_WRITE_REG(&adapter->hw, IXGBE_VLNCTRL, ctrl);
}
if (!test_bit(__IXGBE_DOWN, &adapter->state))
ixgbe_irq_enable(adapter);
}
static void ixgbe_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
@ -1802,6 +1770,39 @@ static void ixgbe_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
hw->mac.ops.set_vfta(&adapter->hw, vid, 0, false);
}
static void ixgbe_vlan_rx_register(struct net_device *netdev,
struct vlan_group *grp)
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
u32 ctrl;
if (!test_bit(__IXGBE_DOWN, &adapter->state))
ixgbe_irq_disable(adapter);
adapter->vlgrp = grp;
/*
* For a DCB driver, always enable VLAN tag stripping so we can
* still receive traffic from a DCB-enabled host even if we're
* not in DCB mode.
*/
ctrl = IXGBE_READ_REG(&adapter->hw, IXGBE_VLNCTRL);
ctrl |= IXGBE_VLNCTRL_VME;
ctrl &= ~IXGBE_VLNCTRL_CFIEN;
IXGBE_WRITE_REG(&adapter->hw, IXGBE_VLNCTRL, ctrl);
ixgbe_vlan_rx_add_vid(netdev, 0);
if (grp) {
/* enable VLAN tag insert/strip */
ctrl = IXGBE_READ_REG(&adapter->hw, IXGBE_VLNCTRL);
ctrl |= IXGBE_VLNCTRL_VME;
ctrl &= ~IXGBE_VLNCTRL_CFIEN;
IXGBE_WRITE_REG(&adapter->hw, IXGBE_VLNCTRL, ctrl);
}
if (!test_bit(__IXGBE_DOWN, &adapter->state))
ixgbe_irq_enable(adapter);
}
static void ixgbe_restore_vlan(struct ixgbe_adapter *adapter)
{
ixgbe_vlan_rx_register(adapter->netdev, adapter->vlgrp);