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/* -
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2013 The FreeBSD Foundation
* 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 THE 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 THE 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.
*
* $FreeBSD$
*
* Author: George V. Neville-Neil
*
*/
/* Organizationally Unique Identifier assigned by IEEE 14 Nov 2013 */
#define OUI_FREEBSD_BASE 0x589cfc000000
#define OUI_FREEBSD(nic) (OUI_FREEBSD_BASE | (nic))
/*
* OUIs are most often used to uniquely identify network interfaces
* and occupy the first 3 bytes of both destination and source MAC
* addresses. The following allocations exist so that various
* software systems associated with FreeBSD can have unique IDs in the
* absence of hardware. The use of OUIs for this purpose is not fully
* fleshed out but is now in common use in virtualization technology.
*
* Allocations from this range are expected to be made using COMMON
* SENSE by developers. Do NOT take a large range just because
* they're currently wide open. Take the smallest useful range for
* your system. We have (2^24 - 2) available addresses (see Reserved
* Values below) but that is far from infinite.
*
* In the event of a conflict arbitration of allocation in this file
* is subject to core@ approval.
*
* Applications are differentiated based on the high order bit(s) of
* the remaining three bytes. Our first allocation has all 0s, the
* next allocation has the highest bit set. Allocating in this way
* gives us 254 allocations of 64K addresses. Address blocks can be
* concatenated if necessary.
*
* Reserved Values: 0x000000 and 0xffffff are reserved and MUST NOT BE
* allocated for any reason.
*/
/* Allocate 20 bits to bhyve */
#define OUI_FREEBSD_BHYVE_LOW OUI_FREEBSD(0x000001)
#define OUI_FREEBSD_BHYVE_HIGH OUI_FREEBSD(0x0fffff)
/*
* Allocate 16 bits for a pool to give to various interfaces that need a
* generated address, but don't quite need to slice off a whole section of
* the OUI (e.g. cloned interfaces, one-off NICs of various vendors).
*
* ether_gen_addr should be used to generate an address from this pool.
*/
#define OUI_FREEBSD_GENERATED_MASK 0x10ffff
#define OUI_FREEBSD_GENERATED_LOW OUI_FREEBSD(0x100000)
#define OUI_FREEBSD_GENERATED_HIGH OUI_FREEBSD(OUI_FREEBSD_GENERATED_MASK)
/* Allocate 16 bits for emulated NVMe devices */
#define OUI_FREEBSD_NVME_MASK 0x20ffff
#define OUI_FREEBSD_NVME_LOW OUI_FREEBSD(0x200000)
#define OUI_FREEBSD_NVME_HIGH OUI_FREEBSD(OUI_FREEBSD_NVME_MASK)
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