diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_switch.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_switch.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_switch.c b/drivers/net/ethernet/intel/ice/ice_switch.c index a4a299012f9f..2742e1c1e337 100644 --- a/drivers/net/ethernet/intel/ice/ice_switch.c +++ b/drivers/net/ethernet/intel/ice/ice_switch.c @@ -2273,6 +2273,125 @@ exit: } /** + * ice_mac_fltr_exist - does this MAC filter exist for given VSI + * @hw: pointer to the hardware structure + * @mac: MAC address to be checked (for MAC filter) + * @vsi_handle: check MAC filter for this VSI + */ +bool ice_mac_fltr_exist(struct ice_hw *hw, u8 *mac, u16 vsi_handle) +{ + struct ice_fltr_mgmt_list_entry *entry; + struct list_head *rule_head; + struct ice_switch_info *sw; + struct mutex *rule_lock; /* Lock to protect filter rule list */ + u16 hw_vsi_id; + + if (!ice_is_vsi_valid(hw, vsi_handle)) + return false; + + hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle); + sw = hw->switch_info; + rule_head = &sw->recp_list[ICE_SW_LKUP_MAC].filt_rules; + if (!rule_head) + return false; + + rule_lock = &sw->recp_list[ICE_SW_LKUP_MAC].filt_rule_lock; + mutex_lock(rule_lock); + list_for_each_entry(entry, rule_head, list_entry) { + struct ice_fltr_info *f_info = &entry->fltr_info; + u8 *mac_addr = &f_info->l_data.mac.mac_addr[0]; + + if (is_zero_ether_addr(mac_addr)) + continue; + + if (f_info->flag != ICE_FLTR_TX || + f_info->src_id != ICE_SRC_ID_VSI || + f_info->lkup_type != ICE_SW_LKUP_MAC || + f_info->fltr_act != ICE_FWD_TO_VSI || + hw_vsi_id != f_info->fwd_id.hw_vsi_id) + continue; + + if (ether_addr_equal(mac, mac_addr)) { + mutex_unlock(rule_lock); + return true; + } + } + mutex_unlock(rule_lock); + return false; +} + +/** + * ice_vlan_fltr_exist - does this VLAN filter exist for given VSI + * @hw: pointer to the hardware structure + * @vlan_id: VLAN ID + * @vsi_handle: check MAC filter for this VSI + */ +bool ice_vlan_fltr_exist(struct ice_hw *hw, u16 vlan_id, u16 vsi_handle) +{ + struct ice_fltr_mgmt_list_entry *entry; + struct list_head *rule_head; + struct ice_switch_info *sw; + struct mutex *rule_lock; /* Lock to protect filter rule list */ + u16 hw_vsi_id; + + if (vlan_id > ICE_MAX_VLAN_ID) + return false; + + if (!ice_is_vsi_valid(hw, vsi_handle)) + return false; + + hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle); + sw = hw->switch_info; + rule_head = &sw->recp_list[ICE_SW_LKUP_VLAN].filt_rules; + if (!rule_head) + return false; + + rule_lock = &sw->recp_list[ICE_SW_LKUP_VLAN].filt_rule_lock; + mutex_lock(rule_lock); + list_for_each_entry(entry, rule_head, list_entry) { + struct ice_fltr_info *f_info = &entry->fltr_info; + u16 entry_vlan_id = f_info->l_data.vlan.vlan_id; + struct ice_vsi_list_map_info *map_info; + + if (entry_vlan_id > ICE_MAX_VLAN_ID) + continue; + + if (f_info->flag != ICE_FLTR_TX || + f_info->src_id != ICE_SRC_ID_VSI || + f_info->lkup_type != ICE_SW_LKUP_VLAN) + continue; + + /* Only allowed filter action are FWD_TO_VSI/_VSI_LIST */ + if (f_info->fltr_act != ICE_FWD_TO_VSI && + f_info->fltr_act != ICE_FWD_TO_VSI_LIST) + continue; + + if (f_info->fltr_act == ICE_FWD_TO_VSI) { + if (hw_vsi_id != f_info->fwd_id.hw_vsi_id) + continue; + } else if (f_info->fltr_act == ICE_FWD_TO_VSI_LIST) { + /* If filter_action is FWD_TO_VSI_LIST, make sure + * that VSI being checked is part of VSI list + */ + if (entry->vsi_count == 1 && + entry->vsi_list_info) { + map_info = entry->vsi_list_info; + if (!test_bit(vsi_handle, map_info->vsi_map)) + continue; + } + } + + if (vlan_id == entry_vlan_id) { + mutex_unlock(rule_lock); + return true; + } + } + mutex_unlock(rule_lock); + + return false; +} + +/** * ice_add_mac - Add a MAC address based filter rule * @hw: pointer to the hardware structure * @m_list: list of MAC addresses and forwarding information |