*/
#ifndef _NET_CLASSQ_CLASSQ_SFB_H_
-#define _NET_CLASSQ_CLASSQ_SFB_H_
+#define _NET_CLASSQ_CLASSQ_SFB_H_
#ifdef PRIVATE
#ifdef BSD_KERNEL_PRIVATE
extern "C" {
#endif
-#define SFB_FP_SHIFT 14 /* fixed-point shift (Q14) */
-#define SFB_LEVELS 2 /* L */
-#define SFB_BINS_SHIFT 5
-#define SFB_BINS (1 << SFB_BINS_SHIFT) /* N */
+#define SFB_FP_SHIFT 14 /* fixed-point shift (Q14) */
+#define SFB_LEVELS 2 /* L */
+#define SFB_BINS_SHIFT 5
+#define SFB_BINS (1 << SFB_BINS_SHIFT) /* N */
struct sfbstats {
- u_int64_t drop_early;
- u_int64_t drop_pbox;
- u_int64_t drop_queue;
- u_int64_t marked_packets;
- u_int64_t pbox_packets;
- u_int64_t pbox_time;
- u_int64_t hold_time;
- u_int64_t dequeue_avg;
- u_int64_t rehash_intval;
- u_int64_t num_rehash;
- u_int64_t null_flowid;
- u_int64_t flow_controlled;
- u_int64_t flow_feedback;
- u_int64_t dequeue_stall;
+ u_int64_t drop_early;
+ u_int64_t drop_pbox;
+ u_int64_t drop_queue;
+ u_int64_t marked_packets;
+ u_int64_t pbox_packets;
+ u_int64_t pbox_time;
+ u_int64_t hold_time;
+ u_int64_t dequeue_avg;
+ u_int64_t rehash_intval;
+ u_int64_t num_rehash;
+ u_int64_t null_flowid;
+ u_int64_t flow_controlled;
+ u_int64_t flow_feedback;
+ u_int64_t dequeue_stall;
};
struct sfbbinstats {
- int16_t pmark; /* marking probability in Q format */
- u_int16_t pkts; /* number of packets */
- u_int32_t bytes; /* number of bytes */
+ int16_t pmark; /* marking probability in Q format */
+ u_int16_t pkts; /* number of packets */
+ u_int32_t bytes; /* number of bytes */
};
struct sfb_stats {
- u_int32_t allocation;
- u_int32_t dropthresh;
- u_int32_t clearpkts;
- u_int32_t current;
- u_int64_t target_qdelay;
- u_int64_t update_interval;
- u_int64_t min_estdelay;
- u_int32_t delay_fcthreshold;
- u_int32_t flags;
- struct sfbstats sfbstats;
+ u_int32_t allocation;
+ u_int32_t dropthresh;
+ u_int32_t clearpkts;
+ u_int32_t current;
+ u_int64_t target_qdelay;
+ u_int64_t update_interval;
+ u_int64_t min_estdelay;
+ u_int32_t delay_fcthreshold;
+ u_int32_t flags;
+ struct sfbstats sfbstats;
struct sfbbins {
struct sfbbinstats stats[SFB_LEVELS][SFB_BINS];
} binstats[2] __attribute__((aligned(8)));
#ifdef BSD_KERNEL_PRIVATE
struct sfb_bins {
- u_int32_t fudge;
- struct sfbbinstats stats[SFB_LEVELS][SFB_BINS];
- struct timespec freezetime[SFB_LEVELS][SFB_BINS];
+ u_int32_t fudge;
+ struct sfbbinstats stats[SFB_LEVELS][SFB_BINS];
+ struct timespec freezetime[SFB_LEVELS][SFB_BINS];
};
struct sfb_fcl {
- u_int32_t cnt;
- struct flowadv_fclist fclist;
+ u_int32_t cnt;
+ struct flowadv_fclist fclist;
};
/* SFB flags */
-#define SFBF_ECN4 0x01 /* use packet marking for IPv4 packets */
-#define SFBF_ECN6 0x02 /* use packet marking for IPv6 packets */
-#define SFBF_ECN (SFBF_ECN4 | SFBF_ECN6)
-#define SFBF_FLOWCTL 0x04 /* enable flow control advisories */
-#define SFBF_DELAYBASED 0x08 /* queueing is delay based */
-#define SFBF_DELAYHIGH 0x10 /* Estimated delay is greater than target */
-#define SFBF_LAST_PKT_DROPPED 0x20 /* Last packet dropped */
-#define SFBF_SUSPENDED 0x1000 /* queue is suspended */
-
-#define SFBF_USERFLAGS \
+#define SFBF_ECN4 0x01 /* use packet marking for IPv4 packets */
+#define SFBF_ECN6 0x02 /* use packet marking for IPv6 packets */
+#define SFBF_ECN (SFBF_ECN4 | SFBF_ECN6)
+#define SFBF_FLOWCTL 0x04 /* enable flow control advisories */
+#define SFBF_DELAYBASED 0x08 /* queueing is delay based */
+#define SFBF_DELAYHIGH 0x10 /* Estimated delay is greater than target */
+#define SFBF_LAST_PKT_DROPPED 0x20 /* Last packet dropped */
+#define SFBF_SUSPENDED 0x1000 /* queue is suspended */
+
+#define SFBF_USERFLAGS \
(SFBF_ECN4 | SFBF_ECN6 | SFBF_FLOWCTL | SFBF_DELAYBASED)
typedef struct sfb {
/* variables for internal use */
- u_int32_t sfb_flags; /* SFB flags */
- u_int32_t sfb_qlim;
- u_int32_t sfb_qid;
- u_int16_t sfb_allocation;
- u_int16_t sfb_drop_thresh;
- u_int32_t sfb_clearpkts;
- u_int64_t sfb_eff_rate; /* last known effective rate */
- struct timespec sfb_getqtime; /* last dequeue timestamp */
- struct timespec sfb_holdtime; /* random holdtime in nsec */
- struct ifnet *sfb_ifp; /* back pointer to ifnet */
+ u_int32_t sfb_flags; /* SFB flags */
+ u_int32_t sfb_qlim;
+ u_int32_t sfb_qid;
+ u_int16_t sfb_allocation;
+ u_int16_t sfb_drop_thresh;
+ u_int32_t sfb_clearpkts;
+ u_int64_t sfb_eff_rate; /* last known effective rate */
+ struct timespec sfb_getqtime; /* last dequeue timestamp */
+ struct timespec sfb_holdtime; /* random holdtime in nsec */
+ struct ifnet *sfb_ifp; /* back pointer to ifnet */
/* target queue delay and interval for queue sizing */
- u_int64_t sfb_target_qdelay;
- struct timespec sfb_update_interval;
- u_int64_t sfb_fc_threshold; /* for flow control feedback */
+ u_int64_t sfb_target_qdelay;
+ struct timespec sfb_update_interval;
+ u_int64_t sfb_fc_threshold; /* for flow control feedback */
/* variables for computing estimated delay of the queue */
- u_int64_t sfb_min_qdelay;
- struct timespec sfb_update_time;
+ u_int64_t sfb_min_qdelay;
+ struct timespec sfb_update_time;
/* moving hash function */
- struct timespec sfb_hinterval; /* random reset interval in sec */
- struct timespec sfb_nextreset; /* reset deadline */
+ struct timespec sfb_hinterval; /* random reset interval in sec */
+ struct timespec sfb_nextreset; /* reset deadline */
/* penalty box */
- struct timespec sfb_pboxtime; /* random pboxtime in nsec */
- struct timespec sfb_pboxfreeze;
+ struct timespec sfb_pboxtime; /* random pboxtime in nsec */
+ struct timespec sfb_pboxfreeze;
/* B[L][N] bins (2 sets: current and warm-up) */
- u_int32_t sfb_current; /* current set (0 or 1) */
- struct sfb_bins (*sfb_bins)[2];
+ u_int32_t sfb_current; /* current set (0 or 1) */
+ struct sfb_bins (*sfb_bins)[ 2];
/* Flow control lists for current set */
- struct sfb_fcl (*sfb_fc_lists)[SFB_BINS];
+ struct sfb_fcl (*sfb_fc_lists)[ SFB_BINS];
/* statistics */
- struct sfbstats sfb_stats __attribute__((aligned(8)));
+ struct sfbstats sfb_stats __attribute__((aligned(8)));
} sfb_t;
extern void sfb_init(void);
projects / apple / xnu.git / blobdiff