1/*-
2 * Copyright (c) 2015-2016 Mellanox Technologies, Ltd. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice unmodified, this list of conditions, and the following
9 *    disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *
25 * $FreeBSD$
26 */
27#ifndef _LINUX_ETHERDEVICE
28#define	_LINUX_ETHERDEVICE
29
30#include <linux/types.h>
31
32#include <sys/random.h>
33#include <sys/libkern.h>
34
35#define	ETH_MODULE_SFF_8079		1
36#define	ETH_MODULE_SFF_8079_LEN		256
37#define	ETH_MODULE_SFF_8472		2
38#define	ETH_MODULE_SFF_8472_LEN		512
39#define	ETH_MODULE_SFF_8636		3
40#define	ETH_MODULE_SFF_8636_LEN		256
41#define	ETH_MODULE_SFF_8436		4
42#define	ETH_MODULE_SFF_8436_LEN		256
43
44struct ethtool_eeprom {
45	u32	offset;
46	u32	len;
47};
48
49struct ethtool_modinfo {
50	u32	type;
51	u32	eeprom_len;
52};
53
54static inline bool
55is_zero_ether_addr(const u8 * addr)
56{
57	return ((addr[0] + addr[1] + addr[2] + addr[3] + addr[4] + addr[5]) == 0x00);
58}
59
60static inline bool
61is_multicast_ether_addr(const u8 * addr)
62{
63	return (0x01 & addr[0]);
64}
65
66static inline bool
67is_broadcast_ether_addr(const u8 * addr)
68{
69	return ((addr[0] + addr[1] + addr[2] + addr[3] + addr[4] + addr[5]) == (6 * 0xff));
70}
71
72static inline bool
73is_valid_ether_addr(const u8 * addr)
74{
75	return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr);
76}
77
78static inline void
79ether_addr_copy(u8 * dst, const u8 * src)
80{
81	memcpy(dst, src, 6);
82}
83
84static inline bool
85ether_addr_equal(const u8 *pa, const u8 *pb)
86{
87	return (memcmp(pa, pb, 6) == 0);
88}
89
90static inline bool
91ether_addr_equal_64bits(const u8 *pa, const u8 *pb)
92{
93	return (memcmp(pa, pb, 6) == 0);
94}
95
96static inline void
97eth_broadcast_addr(u8 *pa)
98{
99	memset(pa, 0xff, 6);
100}
101
102static inline void
103eth_zero_addr(u8 *pa)
104{
105	memset(pa, 0, 6);
106}
107
108static inline void
109random_ether_addr(u8 * dst)
110{
111	arc4random_buf(dst, 6);
112
113	dst[0] &= 0xfe;
114	dst[0] |= 0x02;
115}
116
117#endif					/* _LINUX_ETHERDEVICE */
118