/*
- * Copyright (c) 2011-2012 Apple Inc. All rights reserved.
+ * Copyright (c) 2011-2016 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
/*
* Copyright (c) 2008 The DragonFly Project. All rights reserved.
- *
+ *
* This code is derived from software contributed to The DragonFly Project
* by Matthew Dillon <dillon@backplane.com>
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
- *
+ *
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* 3. Neither the name of The DragonFly Project nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific, prior written permission.
- *
+ *
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
- *
+ *
* $DragonFly: src/sys/net/altq/altq_fairq.h,v 1.1 2008/04/06 18:58:15 dillon Exp $
*/
#ifndef _NET_PKTSCHED_PKTSCHED_FAIRQ_H_
-#define _NET_PKTSCHED_PKTSCHED_FAIRQ_H_
+#define _NET_PKTSCHED_PKTSCHED_FAIRQ_H_
#ifdef PRIVATE
#include <net/pktsched/pktsched.h>
extern "C" {
#endif
-#define FAIRQ_MAX_BUCKETS 2048 /* maximum number of sorting buckets */
-#define FAIRQ_MAXPRI RM_MAXPRIO
-#define FAIRQ_BITMAP_WIDTH (sizeof (fairq_bitmap_t) * 8)
-#define FAIRQ_BITMAP_MASK (FAIRQ_BITMAP_WIDTH - 1)
+#define FAIRQ_MAX_BUCKETS 2048 /* maximum number of sorting buckets */
+#define FAIRQ_MAXPRI RM_MAXPRIO
+#define FAIRQ_BITMAP_WIDTH (sizeof (fairq_bitmap_t) * 8)
+#define FAIRQ_BITMAP_MASK (FAIRQ_BITMAP_WIDTH - 1)
/* fairq class flags */
-#define FARF_RED 0x0001 /* use RED */
-#define FARF_ECN 0x0002 /* use ECN with RED/BLUE/SFB */
-#define FARF_RIO 0x0004 /* use RIO */
-#define FARF_CLEARDSCP 0x0010 /* clear diffserv codepoint */
-#define FARF_BLUE 0x0100 /* use BLUE */
-#define FARF_SFB 0x0200 /* use SFB */
-#define FARF_FLOWCTL 0x0400 /* enable flow control advisories */
-#define FARF_DEFAULTCLASS 0x1000 /* default class */
+#define FARF_RED 0x0001 /* use RED */
+#define FARF_ECN 0x0002 /* use ECN with RED/BLUE/SFB */
+#define FARF_RIO 0x0004 /* use RIO */
+#define FARF_CLEARDSCP 0x0010 /* clear diffserv codepoint */
+#define FARF_BLUE 0x0100 /* use BLUE */
+#define FARF_SFB 0x0200 /* use SFB */
+#define FARF_FLOWCTL 0x0400 /* enable flow control advisories */
+#define FARF_DEFAULTCLASS 0x1000 /* default class */
#ifdef BSD_KERNEL_PRIVATE
-#define FARF_HAS_PACKETS 0x2000 /* might have queued packets */
-#define FARF_LAZY 0x10000000 /* on-demand resource allocation */
+#define FARF_HAS_PACKETS 0x2000 /* might have queued packets */
+#define FARF_LAZY 0x10000000 /* on-demand resource allocation */
#endif /* BSD_KERNEL_PRIVATE */
-#define FARF_USERFLAGS \
- (FARF_RED | FARF_ECN | FARF_RIO | FARF_CLEARDSCP | \
+#define FARF_USERFLAGS \
+ (FARF_RED | FARF_ECN | FARF_RIO | FARF_CLEARDSCP | \
FARF_BLUE | FARF_SFB | FARF_FLOWCTL | FARF_DEFAULTCLASS)
#ifdef BSD_KERNEL_PRIVATE
-#define FARF_BITS \
+#define FARF_BITS \
"\020\1RED\2ECN\3RIO\5CLEARDSCP\11BLUE\12SFB\13FLOWCTL\15DEFAULT" \
"\16HASPKTS\35LAZY"
#else
-#define FARF_BITS \
+#define FARF_BITS \
"\020\1RED\2ECN\3RIO\5CLEARDSCP\11BLUE\12SFB\13FLOWCTL\15DEFAULT" \
"\16HASPKTS"
#endif /* !BSD_KERNEL_PRIVATE */
-typedef u_int32_t fairq_bitmap_t;
+typedef u_int32_t fairq_bitmap_t;
struct fairq_classstats {
- u_int32_t class_handle;
- u_int32_t priority;
+ u_int32_t class_handle;
+ u_int32_t priority;
- u_int32_t qlength;
- u_int32_t qlimit;
- struct pktcntr xmit_cnt; /* transmitted packet counter */
- struct pktcntr drop_cnt; /* dropped packet counter */
+ u_int32_t qlength;
+ u_int32_t qlimit;
+ struct pktcntr xmit_cnt; /* transmitted packet counter */
+ struct pktcntr drop_cnt; /* dropped packet counter */
/* RED, RIO, BLUE, SFB related info */
- classq_type_t qtype;
+ classq_type_t qtype;
union {
/* RIO has 3 red stats */
- struct red_stats red[RIO_NDROPPREC];
- struct blue_stats blue;
- struct sfb_stats sfb;
+ struct red_stats red[RIO_NDROPPREC];
+ struct blue_stats blue;
+ struct sfb_stats sfb;
};
- classq_state_t qstate;
-};
-
-#ifdef BSD_KERNEL_PRIVATE
-
-typedef struct fairq_bucket {
- struct fairq_bucket *next; /* circular list */
- struct fairq_bucket *prev; /* circular list */
- class_queue_t queue; /* the actual queue */
- u_int64_t bw_bytes; /* statistics used to calculate bw */
- u_int64_t bw_delta; /* statistics used to calculate bw */
- u_int64_t last_time;
- int in_use;
-} fairq_bucket_t;
-
-struct fairq_class {
- u_int32_t cl_handle; /* class handle */
- u_int32_t cl_nbuckets; /* (power of 2) */
- u_int32_t cl_nbucket_mask; /* bucket mask */
- u_int32_t cl_qflags; /* class queue flags */
- fairq_bucket_t *cl_buckets;
- fairq_bucket_t *cl_head; /* head of circular bucket list */
- fairq_bucket_t *cl_polled;
- union {
- void *ptr;
- struct red *red; /* RED state */
- struct rio *rio; /* RIO state */
- struct blue *blue; /* BLUE state */
- struct sfb *sfb; /* SFB state */
- } cl_qalg;
- u_int64_t cl_hogs_m1;
- u_int64_t cl_lssc_m1;
- u_int64_t cl_bandwidth;
- u_int64_t cl_bw_current;
- u_int64_t cl_bw_bytes;
- u_int64_t cl_bw_delta;
- u_int64_t cl_last_time;
- classq_type_t cl_qtype; /* rollup */
- classq_state_t cl_qstate; /* state */
- int cl_qlimit;
- int cl_pri; /* priority */
- int cl_flags; /* class flags */
- struct fairq_if *cl_fif; /* back pointer to fif */
-
- /* round robin index */
-
- /* statistics */
- struct pktcntr cl_xmitcnt; /* transmitted packet counter */
- struct pktcntr cl_dropcnt; /* dropped packet counter */
+ classq_state_t qstate;
};
-#define cl_red cl_qalg.red
-#define cl_rio cl_qalg.rio
-#define cl_blue cl_qalg.blue
-#define cl_sfb cl_qalg.sfb
-
-/* fairq_if flags */
-#define FAIRQIFF_ALTQ 0x1 /* configured via PF/ALTQ */
-
-/*
- * fairq interface state
- */
-struct fairq_if {
- struct ifclassq *fif_ifq; /* backpointer to ifclassq */
- int fif_maxpri; /* max priority in use */
- u_int32_t fif_flags; /* flags */
- struct fairq_class *fif_poll_cache; /* cached poll */
- struct fairq_class *fif_default; /* default class */
- struct fairq_class *fif_classes[FAIRQ_MAXPRI]; /* classes */
-};
-
-#define FAIRQIF_IFP(_fif) ((_fif)->fif_ifq->ifcq_ifp)
-
-struct if_ifclassq_stats;
-
-extern void fairq_init(void);
-extern struct fairq_if *fairq_alloc(struct ifnet *, int, boolean_t);
-extern int fairq_destroy(struct fairq_if *);
-extern void fairq_purge(struct fairq_if *);
-extern void fairq_event(struct fairq_if *, cqev_t);
-extern int fairq_add_queue(struct fairq_if *, int, u_int32_t, u_int64_t,
- u_int32_t, int, u_int64_t, u_int64_t, u_int64_t, u_int64_t, u_int32_t,
- struct fairq_class **);
-extern int fairq_remove_queue(struct fairq_if *, u_int32_t);
-extern int fairq_get_class_stats(struct fairq_if *, u_int32_t,
- struct fairq_classstats *);
-extern int fairq_enqueue(struct fairq_if *, struct fairq_class *,
- struct mbuf *, struct pf_mtag *);
-extern struct mbuf *fairq_dequeue(struct fairq_if *, cqdq_op_t);
-extern int fairq_setup_ifclassq(struct ifclassq *, u_int32_t);
-extern int fairq_teardown_ifclassq(struct ifclassq *ifq);
-extern int fairq_getqstats_ifclassq(struct ifclassq *, u_int32_t,
- struct if_ifclassq_stats *);
-#endif /* BSD_KERNEL_PRIVATE */
#ifdef __cplusplus
}
#endif
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