X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/13f56ec4e58bf8687e2a68032c093c0213dd519b..316670eb35587141e969394ae8537d66b9211e80:/bsd/net/classq/classq_blue.h

diff --git a/bsd/net/classq/classq_blue.h b/bsd/net/classq/classq_blue.h
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+/*
+ * Copyright (c) 2011-2012 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ */
+
+/*	$NetBSD: altq_blue.h,v 1.5 2006/10/12 19:59:08 peter Exp $	*/
+/*	$KAME: altq_blue.h,v 1.7 2002/11/29 04:36:22 kjc Exp $	*/
+
+/*
+ * Copyright (C) 1997-2002
+ *	Sony Computer Science Laboratories Inc.  All rights reserved.
+ *
+ * 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
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, 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.
+ */
+
+#ifndef _NET_CLASSQ_CLASSQ_BLUE_H_
+#define	_NET_CLASSQ_CLASSQ_BLUE_H_
+
+#ifdef PRIVATE
+#ifdef BSD_KERNEL_PRIVATE
+#include <net/classq/if_classq.h>
+#endif /* BSD_KERNEL_PRIVATE */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct blue_stats {
+	int32_t			q_pmark;
+	u_int32_t		_pad;
+	u_int64_t		drop_forced;
+	u_int64_t		drop_unforced;
+	u_int64_t		marked_packets;
+};
+
+#ifdef BSD_KERNEL_PRIVATE
+/* blue flags */
+#define	BLUEF_ECN4	0x01	/* use packet marking for IPv4 packets */
+#define	BLUEF_ECN6	0x02	/* use packet marking for IPv6 packets */
+#define	BLUEF_ECN	(BLUEF_ECN4 | BLUEF_ECN6)
+
+#define	BLUEF_USERFLAGS							\
+	(BLUEF_ECN4 | BLUEF_ECN6)
+
+typedef struct blue {
+	u_int32_t blue_flags;	/* blue flags */
+
+	/* blue parameters */
+	int32_t	  blue_pmark;	  /* 0-1000 (mark probability*10000) */
+	int32_t   blue_max_pmark; /* sets precision of marking probability */
+	u_int32_t blue_hold_time; /* hold time in usec */
+	struct ifnet *blue_ifp;	  /* back pointer to ifnet */
+
+	/* variables for internal use */
+	u_int32_t blue_idle;	  /* queue was empty */
+	struct timeval blue_last; /* timestamp when the queue becomes idle */
+
+	/* statistics */
+	struct {
+		struct pktcntr	xmit_cnt;
+		struct pktcntr	drop_cnt;
+		u_int64_t	drop_forced;
+		u_int64_t	drop_unforced;
+		u_int64_t	marked_packets;
+	} blue_stats;
+} blue_t;
+
+extern void blue_init(void);
+extern struct blue *blue_alloc(struct ifnet *, u_int32_t, u_int32_t, u_int32_t);
+extern void blue_destroy(struct blue *);
+extern int blue_addq(struct blue *, class_queue_t *, struct mbuf *,
+    struct pf_mtag *);
+extern struct mbuf *blue_getq(struct blue *, class_queue_t *);
+extern void blue_purgeq(struct blue *, class_queue_t *, u_int32_t,
+    u_int32_t *, u_int32_t *);
+extern void blue_getstats(struct blue *, struct blue_stats *);
+extern void blue_updateq(struct blue *, cqev_t);
+extern int blue_suspendq(struct blue *, class_queue_t *, boolean_t);
+#endif /* BSD_KERNEL_PRIVATE */
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* PRIVATE */
+#endif /* _NET_CLASSQ_CLASSQ_BLUE_H_ */