diff options
Diffstat (limited to 'drivers/net/igb/e1000_mac.c')
| -rw-r--r-- | drivers/net/igb/e1000_mac.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/net/igb/e1000_mac.c b/drivers/net/igb/e1000_mac.c index 5c249e2ce93b..2804db03e9d9 100644 --- a/drivers/net/igb/e1000_mac.c +++ b/drivers/net/igb/e1000_mac.c @@ -118,6 +118,30 @@ void igb_write_vfta(struct e1000_hw *hw, u32 offset, u32 value) } /** + * igb_vfta_set - enable or disable vlan in VLAN filter table + * @hw: pointer to the HW structure + * @vid: VLAN id to add or remove + * @add: if true add filter, if false remove + * + * Sets or clears a bit in the VLAN filter table array based on VLAN id + * and if we are adding or removing the filter + **/ +void igb_vfta_set(struct e1000_hw *hw, u32 vid, bool add) +{ + u32 index = (vid >> E1000_VFTA_ENTRY_SHIFT) & E1000_VFTA_ENTRY_MASK; + u32 mask = 1 < (vid & E1000_VFTA_ENTRY_BIT_SHIFT_MASK); + u32 vfta; + + vfta = array_rd32(E1000_VFTA, index); + if (add) + vfta |= mask; + else + vfta &= ~mask; + + igb_write_vfta(hw, index, vfta); +} + +/** * igb_check_alt_mac_addr - Check for alternate MAC addr * @hw: pointer to the HW structure * |