mirror of
https://github.com/freebsd/freebsd-src
synced 2024-07-21 18:27:22 +00:00
82 lines
2.7 KiB
C
82 lines
2.7 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*
|
|
* Copyright (c) 2019 Lutz Donnerhacke <lutz@donnerhacke.de>
|
|
*
|
|
* 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 AUTHOR 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 AUTHOR 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 _NETGRAPH_QOS_H_
|
|
#define _NETGRAPH_QOS_H_
|
|
|
|
#include <sys/mbuf.h>
|
|
|
|
/* ABI cookie */
|
|
#define M_QOS_COOKIE 1571268051
|
|
#define MTAG_SIZE(X) ( sizeof(struct X) - sizeof(struct m_tag) )
|
|
|
|
/*
|
|
* Definition of types within this ABI:
|
|
* - Choose a type (16bit) by i.e. "echo $((1000+$(date +%s)%64536))"
|
|
* - Retry if the type is already in use
|
|
* - Define the structure for the type according to mbuf_tags(9)
|
|
* struct m_qos_foo {
|
|
* struct m_tag tag;
|
|
* ...
|
|
* };
|
|
* Preferred usage:
|
|
* struct m_qos_foo *p = (void *)m_tag_locate(m,
|
|
* M_QOS_COOKIE, M_QOS_FOO, ...);
|
|
* or
|
|
* p = (void *)m_tag_alloc(
|
|
* M_QOS_COOKIE, M_QOS_FOO, MTAG_SIZE(foo), ...);
|
|
m_tag_prepend(m, &p->tag);
|
|
*/
|
|
|
|
/* Color marking type */
|
|
#define M_QOS_COLOR 23568
|
|
/* Keep colors ordered semantically in order to allow use of "<=" or ">=" */
|
|
enum qos_color {
|
|
QOS_COLOR_GREEN,
|
|
QOS_COLOR_YELLOW,
|
|
QOS_COLOR_RED
|
|
};
|
|
struct m_qos_color {
|
|
struct m_tag tag;
|
|
enum qos_color color;
|
|
};
|
|
|
|
/*
|
|
* Priority class
|
|
*
|
|
* Processing per priority requires an overhead, which should
|
|
* be static (i.e. for alloctating queues) and small (for memory)
|
|
* So keep your chosen range limited.
|
|
*/
|
|
#define M_QOS_PRIORITY 28858
|
|
struct m_qos_priority {
|
|
struct m_tag tag;
|
|
uint8_t priority; /* 0 - lowest */
|
|
};
|
|
|
|
#endif /* _NETGRAPH_QOS_H_ */
|