release/src-rt-6.x.4708/linux/linux-2.6.36/include/linux/gen_stats.h

   1 #ifndef __LINUX_GEN_STATS_H
   2 #define __LINUX_GEN_STATS_H
   3
   4 #include <linux/types.h>
   5
   6 enum {
   7         TCA_STATS_UNSPEC,
   8         TCA_STATS_BASIC,
   9         TCA_STATS_RATE_EST,
  10         TCA_STATS_QUEUE,
  11         TCA_STATS_APP,
  12         __TCA_STATS_MAX,
  13 };
  14 #define TCA_STATS_MAX (__TCA_STATS_MAX - 1)
  15
  16 /**
  17  * struct gnet_stats_basic - byte/packet throughput statistics
  18  * @bytes: number of seen bytes
  19  * @packets: number of seen packets
  20  */
  21 struct gnet_stats_basic {
  22         __u64   bytes;
  23         __u32   packets;
  24 };
  25 struct gnet_stats_basic_packed {
  26         __u64   bytes;
  27         __u32   packets;
  28 } __attribute__ ((packed));
  29
  30 /**
  31  * struct gnet_stats_rate_est - rate estimator
  32  * @bps: current byte rate
  33  * @pps: current packet rate
  34  */
  35 struct gnet_stats_rate_est {
  36         __u32   bps;
  37         __u32   pps;
  38 };
  39
  40 /**
  41  * struct gnet_stats_queue - queuing statistics
  42  * @qlen: queue length
  43  * @backlog: backlog size of queue
  44  * @drops: number of dropped packets
  45  * @requeues: number of requeues
  46  * @overlimits: number of enqueues over the limit
  47  */
  48 struct gnet_stats_queue {
  49         __u32   qlen;
  50         __u32   backlog;
  51         __u32   drops;
  52         __u32   requeues;
  53         __u32   overlimits;
  54 };
  55
  56 /**
  57  * struct gnet_estimator - rate estimator configuration
  58  * @interval: sampling period
  59  * @ewma_log: the log of measurement window weight
  60  */
  61 struct gnet_estimator {
  62         signed char     interval;
  63         unsigned char   ewma_log;
  64 };
  65
  66
  67 #endif /* __LINUX_GEN_STATS_H */