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         __u32 recovery;         /* Time we can next clock a packet out on
  25                                    an empty queue */
  26         unsigned long locked;
  27         struct net_device_stats stats;
  28         struct net_device *dev;
  29         int  (*hard_start_xmit) (struct sk_buff *skb,
  30                 struct net_device *dev);
  31         int  (*hard_header) (struct sk_buff *skb,
  32                 struct net_device *dev,
  33                 unsigned short type,
  34                 void *daddr,
  35                 void *saddr,
  36                 unsigned len);
  37         int  (*rebuild_header)(struct sk_buff *skb);
  38         int (*hard_header_cache)(struct neighbour *neigh, struct hh_cache *hh);
  39         void (*header_cache_update)(struct hh_cache *hh, struct net_device *dev, unsigned char *  haddr);
  40         struct net_device_stats* (*get_stats)(struct net_device *dev);
  41         wait_queue_head_t  wait_queue;
  42         struct timer_list timer;
  43 };
  44
  45 #endif
  46
  47 #define SHAPER_SET_DEV          0x0001
  48 #define SHAPER_SET_SPEED        0x0002
  49 #define SHAPER_GET_DEV          0x0003
  50 #define SHAPER_GET_SPEED        0x0004
  51
  52 struct shaperconf
  53 {
  54         __u16   ss_cmd;
  55         union
  56         {
  57                 char    ssu_name[14];
  58                 __u32   ssu_speed;
  59         } ss_u;
  60 #define ss_speed ss_u.ssu_speed
  61 #define ss_name ss_u.ssu_name
  62 };
  63
  64 #endif