datapath/linux/compat/include/linux/netdevice.h

   1 #ifndef __LINUX_NETDEVICE_WRAPPER_H
   2 #define __LINUX_NETDEVICE_WRAPPER_H 1
   3
   4 #include_next <linux/netdevice.h>
   5 #include <linux/if_bridge.h>
   6
   7 struct net;
   8
   9 #include <linux/version.h>
  10
  11 #ifndef to_net_dev
  12 #define to_net_dev(class) container_of(class, struct net_device, NETDEV_DEV_MEMBER)
  13 #endif
  14
  15 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33)
  16 extern void unregister_netdevice_queue(struct net_device *dev,
  17                                         struct list_head *head);
  18 extern void unregister_netdevice_many(struct list_head *head);
  19 #endif
  20
  21 #ifndef HAVE_DEV_DISABLE_LRO
  22 extern void dev_disable_lro(struct net_device *dev);
  23 #endif
  24
  25 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36) || \
  26     defined HAVE_RHEL_OVS_HOOK
  27
  28 #ifdef HAVE_RHEL_OVS_HOOK
  29 typedef struct sk_buff *(openvswitch_handle_frame_hook_t)(struct sk_buff *skb);
  30 extern openvswitch_handle_frame_hook_t *openvswitch_handle_frame_hook;
  31
  32 int netdev_rx_handler_register(struct net_device *dev,
  33                                openvswitch_handle_frame_hook_t *hook,
  34                                void *rx_handler_data);
  35 #else
  36
  37 int netdev_rx_handler_register(struct net_device *dev,
  38                                struct sk_buff *(*netdev_hook)(struct net_bridge_port *p,
  39                                                              struct sk_buff *skb),
  40                                void *rx_handler_data);
  41 #endif
  42
  43 void netdev_rx_handler_unregister(struct net_device *dev);
  44 #endif
  45
  46 #ifndef HAVE_DEV_GET_BY_INDEX_RCU
  47 static inline struct net_device *dev_get_by_index_rcu(struct net *net, int ifindex)
  48 {
  49         struct net_device *dev;
  50
  51         read_lock(&dev_base_lock);
  52         dev = __dev_get_by_index(net, ifindex);
  53         read_unlock(&dev_base_lock);
  54
  55         return dev;
  56 }
  57 #endif
  58
  59 #ifndef NETIF_F_FSO
  60 #define NETIF_F_FSO 0
  61 #endif
  62
  63 #ifndef HAVE_NETDEV_FEATURES_T
  64 typedef u32 netdev_features_t;
  65 #endif
  66
  67 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38)
  68 #define skb_gso_segment rpl_skb_gso_segment
  69 struct sk_buff *rpl_skb_gso_segment(struct sk_buff *skb,
  70                                     netdev_features_t features);
  71
  72 #define netif_skb_features rpl_netif_skb_features
  73 netdev_features_t rpl_netif_skb_features(struct sk_buff *skb);
  74
  75 #define netif_needs_gso rpl_netif_needs_gso
  76 static inline int rpl_netif_needs_gso(struct sk_buff *skb, int features)
  77 {
  78         return skb_is_gso(skb) && (!skb_gso_ok(skb, features) ||
  79                 unlikely(skb->ip_summed != CHECKSUM_PARTIAL));
  80 }
  81 #endif
  82
  83 #ifndef HAVE___SKB_GSO_SEGMENT
  84 static inline struct sk_buff *__skb_gso_segment(struct sk_buff *skb,
  85                                                 netdev_features_t features,
  86                                                 bool tx_path)
  87 {
  88         return skb_gso_segment(skb, features);
  89 }
  90 #endif
  91
  92 #if LINUX_VERSION_CODE < KERNEL_VERSION(3,9,0)
  93
  94 /* XEN dom0 networking assumes dev->master is bond device
  95  * and it tries to access bond private structure from dev->master
  96  * ptr on receive path. This causes panic. Therefore it is better
  97  * not to backport this API.
  98  **/
  99 static inline int netdev_master_upper_dev_link(struct net_device *dev,
 100                                                struct net_device *upper_dev)
 101 {
 102         return 0;
 103 }
 104
 105 static inline void netdev_upper_dev_unlink(struct net_device *dev,
 106                                            struct net_device *upper_dev)
 107 {
 108 }
 109
 110 static inline struct net_device *netdev_master_upper_dev_get(struct net_device *dev)
 111 {
 112         return NULL;
 113 }
 114 #endif
 115
 116 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,37)
 117 #define dev_queue_xmit rpl_dev_queue_xmit
 118 int dev_queue_xmit(struct sk_buff *skb);
 119 #endif
 120
 121 #if LINUX_VERSION_CODE < KERNEL_VERSION(3,11,0)
 122 static inline struct net_device *netdev_notifier_info_to_dev(void *info)
 123 {
 124         return info;
 125 }
 126 #endif
 127
 128 #ifndef HAVE_PCPU_SW_NETSTATS
 129
 130 #include <linux/u64_stats_sync.h>
 131
 132 struct pcpu_sw_netstats {
 133         u64     rx_packets;
 134         u64     rx_bytes;
 135         u64     tx_packets;
 136         u64     tx_bytes;
 137         struct u64_stats_sync   syncp;
 138 };
 139 #endif
 140
 141 #endif