diff options
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_main.c | 92 |
1 files changed, 59 insertions, 33 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 86ad9537d44f..25db8d80b684 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -1271,10 +1271,13 @@ struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi, } /** - * i40e_del_filter - Remove a mac/vlan filter from the VSI - * @vsi: the VSI to be searched - * @macaddr: the MAC address - * @vlan: the vlan + * __i40e_del_filter - Remove a specific filter from the VSI + * @vsi: VSI to remove from + * @f: the filter to remove from the list + * + * This function should be called instead of i40e_del_filter only if you know + * the exact filter you will remove already, such as via i40e_find_filter or + * i40e_find_mac. * * NOTE: This function is expected to be called with mac_filter_list_lock * being held. @@ -1282,14 +1285,8 @@ struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi, * the "safe" variants of any list iterators, e.g. list_for_each_entry_safe() * instead of list_for_each_entry(). **/ -void i40e_del_filter(struct i40e_vsi *vsi, const u8 *macaddr, s16 vlan) +static void __i40e_del_filter(struct i40e_vsi *vsi, struct i40e_mac_filter *f) { - struct i40e_mac_filter *f; - - if (!vsi || !macaddr) - return; - - f = i40e_find_filter(vsi, macaddr, vlan); if (!f) return; @@ -1308,6 +1305,29 @@ void i40e_del_filter(struct i40e_vsi *vsi, const u8 *macaddr, s16 vlan) } /** + * i40e_del_filter - Remove a MAC/VLAN filter from the VSI + * @vsi: the VSI to be searched + * @macaddr: the MAC address + * @vlan: the VLAN + * + * NOTE: This function is expected to be called with mac_filter_list_lock + * being held. + * ANOTHER NOTE: This function MUST be called from within the context of + * the "safe" variants of any list iterators, e.g. list_for_each_entry_safe() + * instead of list_for_each_entry(). + **/ +void i40e_del_filter(struct i40e_vsi *vsi, const u8 *macaddr, s16 vlan) +{ + struct i40e_mac_filter *f; + + if (!vsi || !macaddr) + return; + + f = i40e_find_filter(vsi, macaddr, vlan); + __i40e_del_filter(vsi, f); +} + +/** * i40e_put_mac_in_vlan - Make macvlan filters from macaddrs and vlans * @vsi: the VSI to be searched * @macaddr: the mac address to be filtered @@ -1349,21 +1369,22 @@ struct i40e_mac_filter *i40e_put_mac_in_vlan(struct i40e_vsi *vsi, **/ int i40e_del_mac_all_vlan(struct i40e_vsi *vsi, const u8 *macaddr) { - struct i40e_mac_filter *f = NULL; - int changed = 0; + struct i40e_mac_filter *f, *ftmp; + bool found = false; WARN(!spin_is_locked(&vsi->mac_filter_list_lock), "Missing mac_filter_list_lock\n"); - list_for_each_entry(f, &vsi->mac_filter_list, list) { - if (ether_addr_equal(macaddr, f->macaddr)) - f->state = I40E_FILTER_REMOVE; + list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) { + if (ether_addr_equal(macaddr, f->macaddr)) { + __i40e_del_filter(vsi, f); + found = true; + } } - if (changed) { - vsi->flags |= I40E_VSI_FLAG_FILTER_CHANGED; - vsi->back->flags |= I40E_FLAG_FILTER_SYNC; + + if (found) return 0; - } - return -ENOENT; + else + return -ENOENT; } /** @@ -2256,7 +2277,7 @@ static void i40e_vlan_rx_register(struct net_device *netdev, u32 features) **/ int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid) { - struct i40e_mac_filter *f, *ftmp, *add_f; + struct i40e_mac_filter *f, *ftmp, *add_f, *del_f; /* Locked once because all functions invoked below iterates list*/ spin_lock_bh(&vsi->mac_filter_list_lock); @@ -2290,11 +2311,11 @@ int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid) * with 0, so we now accept untagged and specified tagged traffic * (and not all tags along with untagged) */ - if (vid > 0) { - if (vsi->netdev && i40e_find_filter(vsi, vsi->netdev->dev_addr, - I40E_VLAN_ANY)) { - i40e_del_filter(vsi, vsi->netdev->dev_addr, - I40E_VLAN_ANY); + if (vid > 0 && vsi->netdev) { + del_f = i40e_find_filter(vsi, vsi->netdev->dev_addr, + I40E_VLAN_ANY); + if (del_f) { + __i40e_del_filter(vsi, del_f); add_f = i40e_add_filter(vsi, vsi->netdev->dev_addr, 0); if (!add_f) { dev_info(&vsi->back->pdev->dev, @@ -2311,9 +2332,11 @@ int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid) list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) { if (f->state == I40E_FILTER_REMOVE) continue; - if (!i40e_find_filter(vsi, f->macaddr, I40E_VLAN_ANY)) + del_f = i40e_find_filter(vsi, f->macaddr, + I40E_VLAN_ANY); + if (!del_f) continue; - i40e_del_filter(vsi, f->macaddr, I40E_VLAN_ANY); + __i40e_del_filter(vsi, del_f); add_f = i40e_add_filter(vsi, f->macaddr, 0); if (!add_f) { dev_info(&vsi->back->pdev->dev, @@ -2353,8 +2376,10 @@ int i40e_vsi_kill_vlan(struct i40e_vsi *vsi, s16 vid) if (vsi->netdev) i40e_del_filter(vsi, netdev->dev_addr, vid); - list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) - i40e_del_filter(vsi, f->macaddr, vid); + list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) { + if (f->vlan == vid) + __i40e_del_filter(vsi, f); + } /* go through all the filters for this VSI and if there is only * vid == 0 it means there are no other filters, so vid 0 must @@ -2386,7 +2411,8 @@ int i40e_vsi_kill_vlan(struct i40e_vsi *vsi, s16 vid) if (!filter_count) { list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) { - i40e_del_filter(vsi, f->macaddr, 0); + if (!f->vlan) + __i40e_del_filter(vsi, f); add_f = i40e_add_filter(vsi, f->macaddr, I40E_VLAN_ANY); if (!add_f) { dev_info(&vsi->back->pdev->dev, @@ -9455,7 +9481,7 @@ int i40e_vsi_release(struct i40e_vsi *vsi) /* make sure any remaining filters are marked for deletion */ list_for_each_entry_safe(f, ftmp, &vsi->mac_filter_list, list) - i40e_del_filter(vsi, f->macaddr, f->vlan); + __i40e_del_filter(vsi, f); spin_unlock_bh(&vsi->mac_filter_list_lock); |