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 netdevice_tracker dev_tracker; 25 void *accel_priv; 26 struct vlan_pcpu_stats __percpu *pcpu_stats; 27 28 DECLARE_BITMAP(mc_filter, MACVLAN_MC_FILTER_SZ); 29 30 netdev_features_t set_features; 31 enum macvlan_mode mode; 32 u16 flags; 33 unsigned int macaddr_count; 34 u32 bc_queue_len_req; 35 #ifdef CONFIG_NET_POLL_CONTROLLER 36 struct netpoll *netpoll; 37 #endif 38 }; 39 40 static inline void macvlan_count_rx(const struct macvlan_dev *vlan, 41 unsigned int len, bool success, 42 bool multicast) 43 { 44 if (likely(success)) { 45 struct vlan_pcpu_stats *pcpu_stats; 46 47 pcpu_stats = get_cpu_ptr(vlan->pcpu_stats); 48 u64_stats_update_begin(&pcpu_stats->syncp); 49 u64_stats_inc(&pcpu_stats->rx_packets); 50 u64_stats_add(&pcpu_stats->rx_bytes, len); 51 if (multicast) 52 u64_stats_inc(&pcpu_stats->rx_multicast); 53 u64_stats_update_end(&pcpu_stats->syncp); 54 put_cpu_ptr(vlan->pcpu_stats); 55 } else { 56 this_cpu_inc(vlan->pcpu_stats->rx_errors); 57 } 58 } 59 60 extern void macvlan_common_setup(struct net_device *dev); 61 62 extern int macvlan_common_newlink(struct net *src_net, struct net_device *dev, 63 struct nlattr *tb[], struct nlattr *data[], 64 struct netlink_ext_ack *extack); 65 66 extern void macvlan_dellink(struct net_device *dev, struct list_head *head); 67 68 extern int macvlan_link_register(struct rtnl_link_ops *ops); 69 70 #if IS_ENABLED(CONFIG_MACVLAN) 71 static inline struct net_device * 72 macvlan_dev_real_dev(const struct net_device *dev) 73 { 74 struct macvlan_dev *macvlan = netdev_priv(dev); 75 76 return macvlan->lowerdev; 77 } 78 #else 79 static inline struct net_device * 80 macvlan_dev_real_dev(const struct net_device *dev) 81 { 82 BUG(); 83 return NULL; 84 } 85 #endif 86 87 static inline void *macvlan_accel_priv(struct net_device *dev) 88 { 89 struct macvlan_dev *macvlan = netdev_priv(dev); 90 91 return macvlan->accel_priv; 92 } 93 94 static inline bool macvlan_supports_dest_filter(struct net_device *dev) 95 { 96 struct macvlan_dev *macvlan = netdev_priv(dev); 97 98 return macvlan->mode == MACVLAN_MODE_PRIVATE || 99 macvlan->mode == MACVLAN_MODE_VEPA || 100 macvlan->mode == MACVLAN_MODE_BRIDGE; 101 } 102 103 static inline int macvlan_release_l2fw_offload(struct net_device *dev) 104 { 105 struct macvlan_dev *macvlan = netdev_priv(dev); 106 107 macvlan->accel_priv = NULL; 108 return dev_uc_add(macvlan->lowerdev, dev->dev_addr); 109 } 110 #endif /* _LINUX_IF_MACVLAN_H */ 111