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ixgbevf: Return error on failure to enable VLAN 

With recent kernel changes we can now return errors on a failure to setup a
VLAN filter.  This patch takes advantage of that opportunity so that we can
return either an EIO error in the case of a mailbox failure, or an EACCESS
error in the case of being denied access to the VLAN filter table by the
PF.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Robert Garrett <robertx.e.garrett@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Alexander Duyck 2012-08-21 00:15:13 +00:00 committed by Jeff Kirsher
parent 5c60f81a25
commit 2ddc7fe1cd
2 changed files with 34 additions and 7 deletions
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21
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
View File

@ -1126,36 +1126,47 @@ static int ixgbevf_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
{
struct ixgbevf_adapter *adapter = netdev_priv(netdev);
struct ixgbe_hw *hw = &adapter->hw;
int err;
if (!hw->mac.ops.set_vfta)
return -EOPNOTSUPP;
spin_lock(&adapter->mbx_lock);
/* add VID to filter table */
if (hw->mac.ops.set_vfta)
hw->mac.ops.set_vfta(hw, vid, 0, true);
err = hw->mac.ops.set_vfta(hw, vid, 0, true);
spin_unlock(&adapter->mbx_lock);
/* translate error return types so error makes sense */
if (err == IXGBE_ERR_MBX)
return -EIO;
if (err == IXGBE_ERR_INVALID_ARGUMENT)
return -EACCES;
set_bit(vid, adapter->active_vlans);
return 0;
return err;
}
static int ixgbevf_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
{
struct ixgbevf_adapter *adapter = netdev_priv(netdev);
struct ixgbe_hw *hw = &adapter->hw;
int err = -EOPNOTSUPP;
spin_lock(&adapter->mbx_lock);
/* remove VID from filter table */
if (hw->mac.ops.set_vfta)
hw->mac.ops.set_vfta(hw, vid, 0, false);
err = hw->mac.ops.set_vfta(hw, vid, 0, false);
spin_unlock(&adapter->mbx_lock);
clear_bit(vid, adapter->active_vlans);
return 0;
return err;
}
static void ixgbevf_restore_vlan(struct ixgbevf_adapter *adapter)

20
drivers/net/ethernet/intel/ixgbevf/vf.c
View File

@ -349,16 +349,32 @@ static s32 ixgbevf_update_mc_addr_list_vf(struct ixgbe_hw *hw,
static s32 ixgbevf_set_vfta_vf(struct ixgbe_hw *hw, u32 vlan, u32 vind,
bool vlan_on)
{
struct ixgbe_mbx_info *mbx = &hw->mbx;
u32 msgbuf[2];
s32 err;
msgbuf[0] = IXGBE_VF_SET_VLAN;
msgbuf[1] = vlan;
/* Setting the 8 bit field MSG INFO to TRUE indicates "add" */
msgbuf[0] |= vlan_on << IXGBE_VT_MSGINFO_SHIFT;
ixgbevf_write_msg_read_ack(hw, msgbuf, 2);
err = mbx->ops.write_posted(hw, msgbuf, 2);
if (err)
goto mbx_err;
return 0;
err = mbx->ops.read_posted(hw, msgbuf, 2);
if (err)
goto mbx_err;
/* remove extra bits from the message */
msgbuf[0] &= ~IXGBE_VT_MSGTYPE_CTS;
msgbuf[0] &= ~(0xFF << IXGBE_VT_MSGINFO_SHIFT);
if (msgbuf[0] != (IXGBE_VF_SET_VLAN | IXGBE_VT_MSGTYPE_ACK))
err = IXGBE_ERR_INVALID_ARGUMENT;
mbx_err:
return err;
}
/**