#include <net/inet_ecn.h>
#include <net/pkt_sched.h>
-#define MAX_PROB U64_MAX
+#define MAX_PROB (U64_MAX >> BITS_PER_BYTE)
#define DTIME_INVALID U64_MAX
#define QUEUE_THRESHOLD 16384
#define DQCOUNT_INVALID -1
/**
* struct pie_vars - contains pie variables
- * @qdelay: current queue delay
- * @qdelay_old: queue delay in previous qdelay calculation
- * @burst_time: burst time allowance
- * @dq_tstamp: timestamp at which dq rate was last calculated
- * @prob: drop probability
- * @accu_prob: accumulated drop probability
- * @dq_count: number of bytes dequeued in a measurement cycle
- * @avg_dq_rate: calculated average dq rate
- * @qlen_old: queue length during previous qdelay calculation
- * @accu_prob_overflows: number of times accu_prob overflows
+ * @qdelay: current queue delay
+ * @qdelay_old: queue delay in previous qdelay calculation
+ * @burst_time: burst time allowance
+ * @dq_tstamp: timestamp at which dq rate was last calculated
+ * @prob: drop probability
+ * @accu_prob: accumulated drop probability
+ * @dq_count: number of bytes dequeued in a measurement cycle
+ * @avg_dq_rate: calculated average dq rate
+ * @backlog_old: queue backlog during previous qdelay calculation
*/
struct pie_vars {
psched_time_t qdelay;
u64 accu_prob;
u64 dq_count;
u32 avg_dq_rate;
- u32 qlen_old;
- u8 accu_prob_overflows;
+ u32 backlog_old;
};
/**
vars->accu_prob = 0;
vars->dq_count = DQCOUNT_INVALID;
vars->avg_dq_rate = 0;
- vars->accu_prob_overflows = 0;
}
static inline struct pie_skb_cb *get_pie_cb(const struct sk_buff *skb)
}
bool pie_drop_early(struct Qdisc *sch, struct pie_params *params,
- struct pie_vars *vars, u32 qlen, u32 packet_size);
+ struct pie_vars *vars, u32 backlog, u32 packet_size);
void pie_process_dequeue(struct sk_buff *skb, struct pie_params *params,
- struct pie_vars *vars, u32 qlen);
+ struct pie_vars *vars, u32 backlog);
void pie_calculate_probability(struct pie_params *params, struct pie_vars *vars,
- u32 qlen);
+ u32 backlog);
#endif