diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 93be6eced2e3..59a28fec83e8 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -3736,6 +3736,10 @@ static void igb_set_rx_mode(struct net_device *netdev) rctl &= ~(E1000_RCTL_UPE | E1000_RCTL_MPE | E1000_RCTL_VFE); if (netdev->flags & IFF_PROMISC) { + u32 mrqc = rd32(E1000_MRQC); + /* retain VLAN HW filtering if in VT mode */ + if (mrqc & E1000_MRQC_ENABLE_VMDQ) + rctl |= E1000_RCTL_VFE; rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE); vmolr |= (E1000_VMOLR_ROPE | E1000_VMOLR_MPME); } else { @@ -5520,12 +5524,75 @@ out: return err; } +static int igb_find_vlvf_entry(struct igb_adapter *adapter, int vid) +{ + struct e1000_hw *hw = &adapter->hw; + int i; + u32 reg; + + /* Find the vlan filter for this id */ + for (i = 0; i < E1000_VLVF_ARRAY_SIZE; i++) { + reg = rd32(E1000_VLVF(i)); + if ((reg & E1000_VLVF_VLANID_ENABLE) && + vid == (reg & E1000_VLVF_VLANID_MASK)) + break; + } + + if (i >= E1000_VLVF_ARRAY_SIZE) + i = -1; + + return i; +} + static int igb_set_vf_vlan(struct igb_adapter *adapter, u32 *msgbuf, u32 vf) { + struct e1000_hw *hw = &adapter->hw; int add = (msgbuf[0] & E1000_VT_MSGINFO_MASK) >> E1000_VT_MSGINFO_SHIFT; int vid = (msgbuf[1] & E1000_VLVF_VLANID_MASK); + int err = 0; - return igb_vlvf_set(adapter, vid, add, vf); + /* If in promiscuous mode we need to make sure the PF also has + * the VLAN filter set. + */ + if (add && (adapter->netdev->flags & IFF_PROMISC)) + err = igb_vlvf_set(adapter, vid, add, + adapter->vfs_allocated_count); + if (err) + goto out; + + err = igb_vlvf_set(adapter, vid, add, vf); + + if (err) + goto out; + + /* Go through all the checks to see if the VLAN filter should + * be wiped completely. + */ + if (!add && (adapter->netdev->flags & IFF_PROMISC)) { + u32 vlvf, bits; + + int regndx = igb_find_vlvf_entry(adapter, vid); + if (regndx < 0) + goto out; + /* See if any other pools are set for this VLAN filter + * entry other than the PF. + */ + vlvf = bits = rd32(E1000_VLVF(regndx)); + bits &= 1 << (E1000_VLVF_POOLSEL_SHIFT + + adapter->vfs_allocated_count); + /* If the filter was removed then ensure PF pool bit + * is cleared if the PF only added itself to the pool + * because the PF is in promiscuous mode. + */ + if ((vlvf & VLAN_VID_MASK) == vid && + !test_bit(vid, adapter->active_vlans) && + !bits) + igb_vlvf_set(adapter, vid, add, + adapter->vfs_allocated_count); + } + +out: + return err; } static inline void igb_vf_reset(struct igb_adapter *adapter, u32 vf)