include/linux/if_shaper.h

   1 #ifndef __LINUX_SHAPER_H
   2 #define __LINUX_SHAPER_H
   3
   4 #ifdef __KERNEL__
   5
   6 #define SHAPER_QLEN     10
   7 /*
   8  *      This is a bit speed dependent (read it shouldn't be a constant!)
   9  *
  10  *      5 is about right for 28.8 upwards. Below that double for every
  11  *      halving of speed or so. - ie about 20 for 9600 baud.
  12  */
  13 #define SHAPER_LATENCY  (5*HZ)
  14 #define SHAPER_MAXSLIP  2
  15 #define SHAPER_BURST    (HZ/50)         /* Good for >128K then */
  16
  17 struct shaper
  18 {
  19         struct sk_buff_head sendq;
  20         __u32 bytespertick;
  21         __u32 bitspersec;
  22         __u32 shapelatency;
  23         __u32 shapeclock;
  24         unsigned long recovery; /* Time we can next clock a packet out on
  25                                    an empty queue */
  26         spinlock_t lock;
  27         struct net_device *dev;
  28         int  (*hard_start_xmit) (struct sk_buff *skb,
  29                 struct net_device *dev);
  30         int  (*hard_header) (struct sk_buff *skb,
  31                 struct net_device *dev,
  32                 unsigned short type,
  33                 void *daddr,
  34                 void *saddr,
  35                 unsigned len);
  36         int  (*rebuild_header)(struct sk_buff *skb);
  37         int (*hard_header_cache)(struct neighbour *neigh, struct hh_cache *hh);
  38         void (*header_cache_update)(struct hh_cache *hh, struct net_device *dev, unsigned char *  haddr);
  39         struct net_device_stats* (*get_stats)(struct net_device *dev);
  40         struct timer_list timer;
  41 };
  42
  43 #endif
  44
  45 #define SHAPER_SET_DEV          0x0001
  46 #define SHAPER_SET_SPEED        0x0002
  47 #define SHAPER_GET_DEV          0x0003
  48 #define SHAPER_GET_SPEED        0x0004
  49
  50 struct shaperconf
  51 {
  52         __u16   ss_cmd;
  53         union
  54         {
  55                 char    ssu_name[14];
  56                 __u32   ssu_speed;
  57         } ss_u;
  58 #define ss_speed ss_u.ssu_speed
  59 #define ss_name ss_u.ssu_name
  60 };
  61
  62 #endif