/*
- * Copyright (c) 2011-2012 Apple Inc. All rights reserved.
+ * Copyright (c) 2011-2016 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#ifdef BSD_KERNEL_PRIVATE
#include <net/classq/classq.h>
-/* classq dequeue op arg */
-typedef enum cqdq_op {
- CLASSQDQ_REMOVE = 1, /* dequeue mbuf from the queue */
- CLASSQDQ_POLL = 2, /* don't dequeue mbuf from the queue */
-} cqdq_op_t;
+
+/* maximum number of packets stored across all queues */
+#define IFCQ_DEFAULT_PKT_DROP_LIMIT 2048
/* classq request types */
typedef enum cqrq {
CLASSQRQ_PURGE_SC = 2, /* purge service class (and flow) */
CLASSQRQ_EVENT = 3, /* interface events */
CLASSQRQ_THROTTLE = 4, /* throttle packets */
+ CLASSQRQ_STAT_SC = 5, /* get service class queue stats */
} cqrq_t;
/* classq purge_sc request argument */
u_int32_t level; /* (in/out) throttling level */
} cqrq_throttle_t;
-#if PF_ALTQ
-#include <net/altq/if_altq.h>
-#endif /* PF_ALTQ */
+/* classq service class stats request argument */
+typedef struct cqrq_stat_sc {
+ mbuf_svc_class_t sc; /* (in) service class */
+ u_int32_t packets; /* (out) packets enqueued */
+ u_int32_t bytes; /* (out) bytes enqueued */
+} cqrq_stat_sc_t;
/*
* A token-bucket regulator limits the rate that a network driver can
int64_t tbr_filluptime; /* (scaled) time to fill up bucket */
u_int64_t tbr_last; /* last time token was updated */
- int tbr_lastop; /* last dequeue operation type */
/* needed for poll-and-dequeue */
};
enum cqdq_op;
enum cqrq;
-typedef int (*ifclassq_enq_func)(struct ifclassq *, struct mbuf *);
-typedef struct mbuf *(*ifclassq_deq_func)(struct ifclassq *, enum cqdq_op);
-typedef struct mbuf *(*ifclassq_deq_sc_func)(struct ifclassq *,
- mbuf_svc_class_t, enum cqdq_op);
+typedef int (*ifclassq_enq_func)(struct ifclassq *, void *, classq_pkt_type_t,
+ boolean_t *);
+typedef void *(*ifclassq_deq_func)(struct ifclassq *, classq_pkt_type_t *);
+typedef void *(*ifclassq_deq_sc_func)(struct ifclassq *,
+ mbuf_svc_class_t, classq_pkt_type_t *);
+typedef int (*ifclassq_deq_multi_func)(struct ifclassq *, u_int32_t,
+ u_int32_t, void **, void **, u_int32_t *, u_int32_t *, classq_pkt_type_t *);
+typedef int (*ifclassq_deq_sc_multi_func)(struct ifclassq *,
+ mbuf_svc_class_t, u_int32_t, u_int32_t, void **, void **,
+ u_int32_t *, u_int32_t *, classq_pkt_type_t *);
typedef int (*ifclassq_req_func)(struct ifclassq *, enum cqrq, void *);
/*
decl_lck_mtx_data(, ifcq_lock);
struct ifnet *ifcq_ifp; /* back pointer to interface */
- u_int32_t ifcq_len;
+ u_int32_t ifcq_len; /* packet count */
u_int32_t ifcq_maxlen;
struct pktcntr ifcq_xmitcnt;
struct pktcntr ifcq_dropcnt;
u_int32_t ifcq_type; /* scheduler type */
u_int32_t ifcq_flags; /* flags */
u_int32_t ifcq_sflags; /* scheduler flags */
+ u_int32_t ifcq_target_qdelay; /* target queue delay */
+ u_int32_t ifcq_bytes; /* bytes count */
+ u_int32_t ifcq_pkt_drop_limit;
void *ifcq_disc; /* for scheduler-specific use */
/*
* ifcq_disc_slots[] represents the leaf classes configured for the
ifclassq_enq_func ifcq_enqueue;
ifclassq_deq_func ifcq_dequeue;
ifclassq_deq_sc_func ifcq_dequeue_sc;
+ ifclassq_deq_multi_func ifcq_dequeue_multi;
+ ifclassq_deq_sc_multi_func ifcq_dequeue_sc_multi;
ifclassq_req_func ifcq_request;
/* token bucket regulator */
struct tb_regulator ifcq_tbr; /* TBR */
-
-#if PF_ALTQ
- u_int32_t ifcq_drain;
- struct ifaltq ifcq_altq;
-#endif /* PF_ALTQ */
};
-#if PF_ALTQ
-#define IFCQ_ALTQ(_ifcq) (&(_ifcq)->ifcq_altq)
-#define IFCQ_IS_DRAINING(_ifcq) ((_ifcq)->ifcq_drain > 0)
-#endif /* PF_ALTQ */
-
/* ifcq_flags */
#define IFCQF_READY 0x01 /* ifclassq supports discipline */
#define IFCQF_ENABLED 0x02 /* ifclassq is in use */
#define IFCQ_TBR_IS_ENABLED(_ifcq) ((_ifcq)->ifcq_flags & IFCQF_TBR)
/* classq enqueue return value */
-#define CLASSQEQ_DROPPED (-1) /* packet dropped (freed) */
-#define CLASSQEQ_SUCCESS 0 /* success, packet enqueued */
-#define CLASSQEQ_SUCCESS_FC 1 /* packet enqueued; */
- /* give flow control feedback */
-#define CLASSQEQ_DROPPED_FC 2 /* packet dropped; */
- /* give flow control feedback */
-#define CLASSQEQ_DROPPED_SP 3 /* packet dropped due to suspension; */
- /* give flow control feedback */
+/* packet has to be dropped */
+#define CLASSQEQ_DROP (-1)
+/* packet successfully enqueued */
+#define CLASSQEQ_SUCCESS 0
+/* packet enqueued; give flow control feedback */
+#define CLASSQEQ_SUCCESS_FC 1
+/* packet needs to be dropped due to flowcontrol; give flow control feedback */
+#define CLASSQEQ_DROP_FC 2
+/* packet needs to be dropped due to suspension; give flow control feedback */
+#define CLASSQEQ_DROP_SP 3
/* interface event argument for CLASSQRQ_EVENT */
typedef enum cqev {
- CLASSQ_EV_LINK_SPEED = 1, /* link speed has changed */
- CLASSQ_EV_LINK_MTU = 2, /* link MTU has changed */
- CLASSQ_EV_LINK_UP = 3, /* link is now up */
- CLASSQ_EV_LINK_DOWN = 4, /* link is now down */
+ CLASSQ_EV_INIT = 0,
+ CLASSQ_EV_LINK_BANDWIDTH = 1, /* link bandwidth has changed */
+ CLASSQ_EV_LINK_LATENCY = 2, /* link latency has changed */
+ CLASSQ_EV_LINK_MTU = 3, /* link MTU has changed */
+ CLASSQ_EV_LINK_UP = 4, /* link is now up */
+ CLASSQ_EV_LINK_DOWN = 5, /* link is now down */
} cqev_t;
#endif /* BSD_KERNEL_PRIVATE */
-#include <net/pktsched/pktsched_priq.h>
-#include <net/pktsched/pktsched_fairq.h>
#include <net/pktsched/pktsched_tcq.h>
-#include <net/pktsched/pktsched_cbq.h>
-#include <net/pktsched/pktsched_hfsc.h>
#include <net/pktsched/pktsched_qfq.h>
+#include <net/pktsched/pktsched_fq_codel.h>
#ifdef __cplusplus
extern "C" {
#endif
-
struct if_ifclassq_stats {
u_int32_t ifqs_len;
u_int32_t ifqs_maxlen;
struct pktcntr ifqs_dropcnt;
u_int32_t ifqs_scheduler;
union {
- struct priq_classstats ifqs_priq_stats;
- struct fairq_classstats ifqs_fairq_stats;
struct tcq_classstats ifqs_tcq_stats;
- struct cbq_classstats ifqs_cbq_stats;
- struct hfsc_classstats ifqs_hfsc_stats;
struct qfq_classstats ifqs_qfq_stats;
+ struct fq_codel_classstats ifqs_fq_codel_stats;
};
} __attribute__((aligned(8)));
* For ifclassq lock
*/
#define IFCQ_LOCK_ASSERT_HELD(_ifcq) \
- lck_mtx_assert(&(_ifcq)->ifcq_lock, LCK_MTX_ASSERT_OWNED)
+ LCK_MTX_ASSERT(&(_ifcq)->ifcq_lock, LCK_MTX_ASSERT_OWNED)
#define IFCQ_LOCK_ASSERT_NOTHELD(_ifcq) \
- lck_mtx_assert(&(_ifcq)->ifcq_lock, LCK_MTX_ASSERT_NOTOWNED)
+ LCK_MTX_ASSERT(&(_ifcq)->ifcq_lock, LCK_MTX_ASSERT_NOTOWNED)
#define IFCQ_LOCK(_ifcq) \
lck_mtx_lock(&(_ifcq)->ifcq_lock)
/*
* For ifclassq operations
*/
-#define IFCQ_ENQUEUE(_ifq, _m, _err) do { \
- (_err) = (*(_ifq)->ifcq_enqueue)(_ifq, _m); \
-} while (0)
-
-#define IFCQ_DEQUEUE(_ifq, _m) do { \
- (_m) = (*(_ifq)->ifcq_dequeue)(_ifq, CLASSQDQ_REMOVE); \
-} while (0)
-
-#define IFCQ_DEQUEUE_SC(_ifq, _sc, _m) do { \
- (_m) = (*(_ifq)->ifcq_dequeue_sc)(_ifq, _sc, CLASSQDQ_REMOVE); \
+#define IFCQ_ENQUEUE(_ifq, _p, _t, _err, _drop) do { \
+ (_err) = (*(_ifq)->ifcq_enqueue)(_ifq, _p, _t, _drop); \
} while (0)
-#define IFCQ_TBR_DEQUEUE(_ifcq, _m) do { \
- (_m) = ifclassq_tbr_dequeue(_ifcq, CLASSQDQ_REMOVE); \
+#define IFCQ_DEQUEUE(_ifq, _p, _t) do { \
+ (_p) = (*(_ifq)->ifcq_dequeue)(_ifq, _t); \
} while (0)
-#define IFCQ_TBR_DEQUEUE_SC(_ifcq, _sc, _m) do { \
- (_m) = ifclassq_tbr_dequeue_sc(_ifcq, CLASSQDQ_REMOVE, _sc); \
+#define IFCQ_DEQUEUE_SC(_ifq, _sc, _p, _t) do { \
+ (_p) = (*(_ifq)->ifcq_dequeue_sc)(_ifq, _sc, _t); \
} while (0)
-#define IFCQ_POLL(_ifq, _m) do { \
- (_m) = (*(_ifq)->ifcq_dequeue)(_ifq, CLASSQDQ_POLL); \
+#define IFCQ_TBR_DEQUEUE(_ifcq, _p, _t) do { \
+ (_p) = ifclassq_tbr_dequeue(_ifcq, _t); \
} while (0)
-#define IFCQ_POLL_SC(_ifq, _sc, _m) do { \
- (_m) = (*(_ifq)->ifcq_dequeue_sc)(_ifq, _sc, CLASSQDQ_POLL); \
-} while (0)
-
-#define IFCQ_TBR_POLL(_ifcq, _m) do { \
- (_m) = ifclassq_tbr_dequeue(_ifcq, CLASSQDQ_POLL); \
-} while (0)
-
-#define IFCQ_TBR_POLL_SC(_ifcq, _sc, _m) do { \
- (_m) = ifclassq_tbr_dequeue_sc(_ifcq, CLASSQDQ_POLL, _sc); \
+#define IFCQ_TBR_DEQUEUE_SC(_ifcq, _sc, _p, _t) do { \
+ (_p) = ifclassq_tbr_dequeue_sc(_ifcq, _sc, _t); \
} while (0)
#define IFCQ_PURGE(_ifq) do { \
(_level) = _req.level; \
} while (0)
+#define IFCQ_LEN_SC(_ifq, _sc, _packets, _bytes, _err) do { \
+ cqrq_stat_sc_t _req = { _sc, 0, 0 }; \
+ (_err) = (*(ifq)->ifcq_request)(_ifq, CLASSQRQ_STAT_SC, &_req); \
+ if ((_packets) != NULL) \
+ (*(_packets)) = _req.packets; \
+ if ((_bytes) != NULL) \
+ (*(_bytes)) = _req.bytes; \
+} while (0)
+
#define IFCQ_LEN(_ifcq) ((_ifcq)->ifcq_len)
#define IFCQ_QFULL(_ifcq) (IFCQ_LEN(_ifcq) >= (_ifcq)->ifcq_maxlen)
#define IFCQ_IS_EMPTY(_ifcq) (IFCQ_LEN(_ifcq) == 0)
#define IFCQ_DEC_LEN(_ifcq) (IFCQ_LEN(_ifcq)--)
#define IFCQ_MAXLEN(_ifcq) ((_ifcq)->ifcq_maxlen)
#define IFCQ_SET_MAXLEN(_ifcq, _len) ((_ifcq)->ifcq_maxlen = (_len))
+#define IFCQ_TARGET_QDELAY(_ifcq) ((_ifcq)->ifcq_target_qdelay)
+#define IFCQ_BYTES(_ifcq) ((_ifcq)->ifcq_bytes)
+#define IFCQ_INC_BYTES(_ifcq, _len) \
+ ((_ifcq)->ifcq_bytes = (_ifcq)->ifcq_bytes + (_len))
+#define IFCQ_DEC_BYTES(_ifcq, _len) \
+ ((_ifcq)->ifcq_bytes = (_ifcq)->ifcq_bytes - (_len))
#define IFCQ_XMIT_ADD(_ifcq, _pkt, _len) do { \
PKTCNTR_ADD(&(_ifcq)->ifcq_xmitcnt, _pkt, _len); \
PKTCNTR_ADD(&(_ifcq)->ifcq_dropcnt, _pkt, _len); \
} while (0)
+#define IFCQ_PKT_DROP_LIMIT(_ifcq) ((_ifcq)->ifcq_pkt_drop_limit)
+
extern int ifclassq_setup(struct ifnet *, u_int32_t, boolean_t);
extern void ifclassq_teardown(struct ifnet *);
extern int ifclassq_pktsched_setup(struct ifclassq *);
extern void ifclassq_set_maxlen(struct ifclassq *, u_int32_t);
extern u_int32_t ifclassq_get_maxlen(struct ifclassq *);
-extern u_int32_t ifclassq_get_len(struct ifclassq *);
-extern errno_t ifclassq_enqueue(struct ifclassq *, struct mbuf *);
-extern errno_t ifclassq_dequeue(struct ifclassq *, u_int32_t, struct mbuf **,
- struct mbuf **, u_int32_t *, u_int32_t *);
+extern int ifclassq_get_len(struct ifclassq *, mbuf_svc_class_t,
+ u_int32_t *, u_int32_t *);
+extern errno_t ifclassq_enqueue(struct ifclassq *, void *, classq_pkt_type_t,
+ boolean_t *);
+extern errno_t ifclassq_dequeue(struct ifclassq *, u_int32_t, u_int32_t,
+ void **, void **, u_int32_t *, u_int32_t *, classq_pkt_type_t *);
extern errno_t ifclassq_dequeue_sc(struct ifclassq *, mbuf_svc_class_t,
- u_int32_t, struct mbuf **, struct mbuf **, u_int32_t *, u_int32_t *);
-extern struct mbuf *ifclassq_poll(struct ifclassq *);
-extern struct mbuf *ifclassq_poll_sc(struct ifclassq *, mbuf_svc_class_t);
+ u_int32_t, u_int32_t, void **, void **, u_int32_t *, u_int32_t *,
+ classq_pkt_type_t *);
+extern void *ifclassq_poll(struct ifclassq *, classq_pkt_type_t *);
+extern void *ifclassq_poll_sc(struct ifclassq *, mbuf_svc_class_t,
+ classq_pkt_type_t *);
extern void ifclassq_update(struct ifclassq *, cqev_t);
extern int ifclassq_attach(struct ifclassq *, u_int32_t, void *,
ifclassq_enq_func, ifclassq_deq_func, ifclassq_deq_sc_func,
- ifclassq_req_func);
+ ifclassq_deq_multi_func, ifclassq_deq_sc_multi_func, ifclassq_req_func);
extern int ifclassq_detach(struct ifclassq *);
extern int ifclassq_getqstats(struct ifclassq *, u_int32_t,
void *, u_int32_t *);
extern const char *ifclassq_ev2str(cqev_t);
extern int ifclassq_tbr_set(struct ifclassq *, struct tb_profile *, boolean_t);
-extern struct mbuf *ifclassq_tbr_dequeue(struct ifclassq *, int);
-extern struct mbuf *ifclassq_tbr_dequeue_sc(struct ifclassq *, int,
- mbuf_svc_class_t);
+extern void *ifclassq_tbr_dequeue(struct ifclassq *, classq_pkt_type_t *);
+extern void *ifclassq_tbr_dequeue_sc(struct ifclassq *, mbuf_svc_class_t,
+ classq_pkt_type_t *);
+extern void ifclassq_calc_target_qdelay(struct ifnet *ifp,
+ u_int64_t *if_target_qdelay);
+extern void ifclassq_calc_update_interval(u_int64_t *update_interval);
+extern void ifclassq_set_packet_metadata(struct ifclassq *ifq,
+ struct ifnet *ifp, void *p, classq_pkt_type_t ptype);
+
#endif /* BSD_KERNEL_PRIVATE */
#endif /* PRIVATE */
#endif /* _NET_CLASSQ_IF_CLASSQ_H_ */
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