xnu-4903.221.2.tar.gz

[apple/xnu.git] / bsd / net / classq / classq.h

diff --git a/bsd/net/classq/classq.h b/bsd/net/classq/classq.h
index b9705acb70a486563632308a0f846487bd5bef86..f36f9d727e31f3f932ac49b38ed8266d6a87e4eb 100644 (file)
--- a/bsd/net/classq/classq.h
+++ b/bsd/net/classq/classq.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2007-2012 Apple Inc. All rights reserved.
+ * Copyright (c) 2007-2016 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
@@ -72,15 +72,20 @@
 extern "C" {
 #endif
 
+/*
+ * Packet types
+ */
+typedef enum classq_pkt_type {
+       QP_INVALID = 0,
+       QP_MBUF,        /* mbuf packet */
+} classq_pkt_type_t;
+
 /*
  * Packet Queue types
  */
 typedef enum classq_type {
        Q_DROPHEAD,
        Q_DROPTAIL,
-       Q_RED,
-       Q_RIO,
-       Q_BLUE,
        Q_SFB
 } classq_type_t;
 
@@ -94,6 +99,9 @@ typedef enum classq_state {
 
 #define        DEFAULT_QLIMIT  128 /* default */
 
+#define        CLASSQ_DEQUEUE_MAX_PKT_LIMIT    2048
+#define        CLASSQ_DEQUEUE_MAX_BYTE_LIMIT   (1024 * 1024)
+
 /*
  * generic packet counter
  */
@@ -111,21 +119,26 @@ struct pktcntr {
  * Packet Queue structures and macros to manipulate them.
  */
 typedef struct _class_queue_ {
-       MBUFQ_HEAD(mq_head) mbufq;      /* Packet queue */
+       union {
+               MBUFQ_HEAD(mq_head) __mbufq; /* mbuf packet queue */
+       } __pktq_u;
        u_int32_t       qlen;   /* Queue length (in number of packets) */
-       u_int32_t       qsize;  /* Approx. queue size (in number of bytes) */
        u_int32_t       qlim;   /* Queue limit (in number of packets*) */
+       u_int64_t       qsize;  /* Approx. queue size (in number of bytes) */
        classq_type_t   qtype;  /* Queue type */
        classq_state_t  qstate; /* Queue state */
+       classq_pkt_type_t       qptype; /* Packet type */
 } class_queue_t;
 
+#define        qmbufq(q)       (q)->__pktq_u.__mbufq   /* Get mbuf packet queue */
+#define        qptype(q)       (q)->qptype             /* Get queue packet type */
 #define        qtype(q)        (q)->qtype              /* Get queue type */
 #define        qstate(q)       (q)->qstate             /* Get queue state */
 #define        qlimit(q)       (q)->qlim               /* Max packets to be queued */
 #define        qlen(q)         (q)->qlen               /* Current queue length. */
 #define        qsize(q)        (q)->qsize              /* Approx. bytes in queue */
-/* #define     qtail(q)        MBUFQ_LAST(&(q)->mbufq) */
-#define        qhead(q)        MBUFQ_FIRST(&(q)->mbufq)
+
+#define        qhead(q)        MBUFQ_FIRST(&qmbufq(q))
 
 #define        qempty(q)       (qlen(q) == 0)  /* Is the queue empty?? */
 #define        q_is_red(q)     (qtype(q) == Q_RED)     /* Is the queue a RED queue */
@@ -154,16 +167,16 @@ extern u_int32_t classq_verbose;
 
 SYSCTL_DECL(_net_classq);
 
-extern void _qinit(class_queue_t *, int, int);
-extern void _addq(class_queue_t *, struct mbuf *);
-extern void _addq_multi(class_queue_t *, struct mbuf *, struct mbuf *,
-    u_int32_t, u_int32_t);
-extern struct mbuf *_getq(class_queue_t *);
-extern struct mbuf *_getq_all(class_queue_t *);
-extern struct mbuf *_getq_tail(class_queue_t *);
-extern struct mbuf *_getq_random(class_queue_t *);
-extern struct mbuf *_getq_flow(class_queue_t *, u_int32_t);
-extern void _removeq(class_queue_t *, struct mbuf *);
+extern void _qinit(class_queue_t *, int, int, classq_pkt_type_t);
+extern void _addq(class_queue_t *, void *);
+extern void _addq_multi(class_queue_t *, void *, void *, u_int32_t, u_int32_t);
+extern void *_getq(class_queue_t *);
+extern void *_getq_all(class_queue_t *, void **, u_int32_t *, u_int64_t *);
+extern void *_getq_tail(class_queue_t *);
+extern void *_getq_random(class_queue_t *);
+extern void *_getq_flow(class_queue_t *, u_int32_t);
+extern void *_getq_scidx_lt(class_queue_t *, u_int32_t);
+extern void _removeq(class_queue_t *, void *);
 extern void _flushq(class_queue_t *);
 extern void _flushq_flow(class_queue_t *, u_int32_t, u_int32_t *, u_int32_t *);