LCOV - code coverage report
Current view: top level - include/linux - if_macvlan.h (source / functions) Hit Total Coverage
Test: landlock.info Lines: 0 2 0.0 %
Date: 2021-04-22 12:43:58 Functions: 0 1 0.0 %

          Line data    Source code
       1             : /* SPDX-License-Identifier: GPL-2.0 */
       2             : #ifndef _LINUX_IF_MACVLAN_H
       3             : #define _LINUX_IF_MACVLAN_H
       4             : 
       5             : #include <linux/if_link.h>
       6             : #include <linux/if_vlan.h>
       7             : #include <linux/list.h>
       8             : #include <linux/netdevice.h>
       9             : #include <linux/netlink.h>
      10             : #include <net/netlink.h>
      11             : #include <linux/u64_stats_sync.h>
      12             : 
      13             : struct macvlan_port;
      14             : 
      15             : #define MACVLAN_MC_FILTER_BITS  8
      16             : #define MACVLAN_MC_FILTER_SZ    (1 << MACVLAN_MC_FILTER_BITS)
      17             : 
      18             : struct macvlan_dev {
      19             :         struct net_device       *dev;
      20             :         struct list_head        list;
      21             :         struct hlist_node       hlist;
      22             :         struct macvlan_port     *port;
      23             :         struct net_device       *lowerdev;
      24             :         void                    *accel_priv;
      25             :         struct vlan_pcpu_stats __percpu *pcpu_stats;
      26             : 
      27             :         DECLARE_BITMAP(mc_filter, MACVLAN_MC_FILTER_SZ);
      28             : 
      29             :         netdev_features_t       set_features;
      30             :         enum macvlan_mode       mode;
      31             :         u16                     flags;
      32             :         unsigned int            macaddr_count;
      33             :         u32                     bc_queue_len_req;
      34             : #ifdef CONFIG_NET_POLL_CONTROLLER
      35             :         struct netpoll          *netpoll;
      36             : #endif
      37             : };
      38             : 
      39             : static inline void macvlan_count_rx(const struct macvlan_dev *vlan,
      40             :                                     unsigned int len, bool success,
      41             :                                     bool multicast)
      42             : {
      43             :         if (likely(success)) {
      44             :                 struct vlan_pcpu_stats *pcpu_stats;
      45             : 
      46             :                 pcpu_stats = this_cpu_ptr(vlan->pcpu_stats);
      47             :                 u64_stats_update_begin(&pcpu_stats->syncp);
      48             :                 pcpu_stats->rx_packets++;
      49             :                 pcpu_stats->rx_bytes += len;
      50             :                 if (multicast)
      51             :                         pcpu_stats->rx_multicast++;
      52             :                 u64_stats_update_end(&pcpu_stats->syncp);
      53             :         } else {
      54             :                 this_cpu_inc(vlan->pcpu_stats->rx_errors);
      55             :         }
      56             : }
      57             : 
      58             : extern void macvlan_common_setup(struct net_device *dev);
      59             : 
      60             : extern int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
      61             :                                   struct nlattr *tb[], struct nlattr *data[],
      62             :                                   struct netlink_ext_ack *extack);
      63             : 
      64             : extern void macvlan_dellink(struct net_device *dev, struct list_head *head);
      65             : 
      66             : extern int macvlan_link_register(struct rtnl_link_ops *ops);
      67             : 
      68             : #if IS_ENABLED(CONFIG_MACVLAN)
      69             : static inline struct net_device *
      70             : macvlan_dev_real_dev(const struct net_device *dev)
      71             : {
      72             :         struct macvlan_dev *macvlan = netdev_priv(dev);
      73             : 
      74             :         return macvlan->lowerdev;
      75             : }
      76             : #else
      77             : static inline struct net_device *
      78           0 : macvlan_dev_real_dev(const struct net_device *dev)
      79             : {
      80           0 :         BUG();
      81             :         return NULL;
      82             : }
      83             : #endif
      84             : 
      85             : static inline void *macvlan_accel_priv(struct net_device *dev)
      86             : {
      87             :         struct macvlan_dev *macvlan = netdev_priv(dev);
      88             : 
      89             :         return macvlan->accel_priv;
      90             : }
      91             : 
      92             : static inline bool macvlan_supports_dest_filter(struct net_device *dev)
      93             : {
      94             :         struct macvlan_dev *macvlan = netdev_priv(dev);
      95             : 
      96             :         return macvlan->mode == MACVLAN_MODE_PRIVATE ||
      97             :                macvlan->mode == MACVLAN_MODE_VEPA ||
      98             :                macvlan->mode == MACVLAN_MODE_BRIDGE;
      99             : }
     100             : 
     101             : static inline int macvlan_release_l2fw_offload(struct net_device *dev)
     102             : {
     103             :         struct macvlan_dev *macvlan = netdev_priv(dev);
     104             : 
     105             :         macvlan->accel_priv = NULL;
     106             :         return dev_uc_add(macvlan->lowerdev, dev->dev_addr);
     107             : }
     108             : #endif /* _LINUX_IF_MACVLAN_H */

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