| | 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 | int nest_level; |
| | 33 | unsigned int macaddr_count; |
| | 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 | macvlan_dev_real_dev(const struct net_device *dev) |
| | 79 | { |
| | 80 | 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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