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ixgbe: Force VLNCTRL.VFE to be set in all VMDq paths 

When I was adding the code for enabling VLAN promiscuous mode with SR-IOV
enabled I had inadvertently left the VLNCTRL.VFE bit unchanged as I has
assumed there was code in another path that was setting it when we enabled
SR-IOV.  This wasn't the case and as a result we were just disabling VLAN
filtering for all the VFs apparently.

Also the previous patches were always clearing CFIEN which was always set
to 0 by the hardware anyway so I am dropping the redundant bit clearing.

Fixes: 1636956491 ("ixgbe: Add support for VLAN promiscuous with SR-IOV")
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Alexander Duyck 2016-08-11 14:51:56 -07:00 committed by Jeff Kirsher
parent 8037dd60f4
commit f60439bc21
1 changed files with 12 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
View File

@ -4100,6 +4100,8 @@ static void ixgbe_vlan_promisc_enable(struct ixgbe_adapter *adapter)
struct ixgbe_hw *hw = &adapter->hw;
u32 vlnctrl, i;
vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
switch (hw->mac.type) {
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
@ -4112,8 +4114,7 @@ static void ixgbe_vlan_promisc_enable(struct ixgbe_adapter *adapter)
/* fall through */
case ixgbe_mac_82598EB:
/* legacy case, we can just disable VLAN filtering */
vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
vlnctrl &= ~(IXGBE_VLNCTRL_VFE | IXGBE_VLNCTRL_CFIEN);
vlnctrl &= ~IXGBE_VLNCTRL_VFE;
IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl);
return;
}
@ -4125,6 +4126,10 @@ static void ixgbe_vlan_promisc_enable(struct ixgbe_adapter *adapter)
/* Set flag so we don't redo unnecessary work */
adapter->flags2 |= IXGBE_FLAG2_VLAN_PROMISC;
/* For VMDq and SR-IOV we must leave VLAN filtering enabled */
vlnctrl |= IXGBE_VLNCTRL_VFE;
IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl);
/* Add PF to all active pools */
for (i = IXGBE_VLVF_ENTRIES; --i;) {
u32 reg_offset = IXGBE_VLVFB(i * 2 + VMDQ_P(0) / 32);
@ -4191,6 +4196,11 @@ static void ixgbe_vlan_promisc_disable(struct ixgbe_adapter *adapter)
struct ixgbe_hw *hw = &adapter->hw;
u32 vlnctrl, i;
/* Set VLAN filtering to enabled */
vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
vlnctrl |= IXGBE_VLNCTRL_VFE;
IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl);
switch (hw->mac.type) {
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
@ -4202,10 +4212,6 @@ static void ixgbe_vlan_promisc_disable(struct ixgbe_adapter *adapter)
break;
/* fall through */
case ixgbe_mac_82598EB:
vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
vlnctrl &= ~IXGBE_VLNCTRL_CFIEN;
vlnctrl |= IXGBE_VLNCTRL_VFE;
IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl);
return;
}