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#ifndef _LINUXKPI_LINUX_ETHERDEVICE_H_
26#define	_LINUXKPI_LINUX_ETHERDEVICE_H_
27
28#include <linux/types.h>
29#include <linux/device.h>
30
31#include <sys/random.h>
32#include <sys/libkern.h>
33
34#define	ETH_MODULE_SFF_8079		1
35#define	ETH_MODULE_SFF_8079_LEN		256
36#define	ETH_MODULE_SFF_8472		2
37#define	ETH_MODULE_SFF_8472_LEN		512
38#define	ETH_MODULE_SFF_8636		3
39#define	ETH_MODULE_SFF_8636_LEN		256
40#define	ETH_MODULE_SFF_8436		4
41#define	ETH_MODULE_SFF_8436_LEN		256
42
43struct ethtool_eeprom {
44	u32	offset;
45	u32	len;
46};
47
48struct ethtool_modinfo {
49	u32	type;
50	u32	eeprom_len;
51};
52
53static inline bool
54is_zero_ether_addr(const u8 * addr)
55{
56	return ((addr[0] + addr[1] + addr[2] + addr[3] + addr[4] + addr[5]) == 0x00);
57}
58
59static inline bool
60is_multicast_ether_addr(const u8 * addr)
61{
62	return (0x01 & addr[0]);
63}
64
65static inline bool
66is_broadcast_ether_addr(const u8 * addr)
67{
68	return ((addr[0] + addr[1] + addr[2] + addr[3] + addr[4] + addr[5]) == (6 * 0xff));
69}
70
71static inline bool
72is_valid_ether_addr(const u8 * addr)
73{
74	return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr);
75}
76
77static inline void
78ether_addr_copy(u8 * dst, const u8 * src)
79{
80	memcpy(dst, src, 6);
81}
82
83static inline bool
84ether_addr_equal_unaligned(const u8 *pa, const u8 *pb)
85{
86	return (memcmp(pa, pb, 6) == 0);
87}
88#define	ether_addr_equal(_pa, _pb)	ether_addr_equal_unaligned(_pa, _pb)
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
117static inline void
118eth_random_addr(u8 *dst)
119{
120
121	random_ether_addr(dst);
122}
123
124static inline int
125device_get_mac_address(struct device *dev, char *dst)
126{
127
128	/* XXX get mac address from FDT? */
129	return (-ENOENT);
130}
131
132#endif					/* _LINUXKPI_LINUX_ETHERDEVICE_H_ */
133