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
43 struct ethtool_eeprom {
44 u32 offset;
45 u32 len;
46 };
47
48 struct ethtool_modinfo {
49 u32 type;
50 u32 eeprom_len;
51 };
52
53 static inline bool
is_zero_ether_addr(const u8 * addr)54 is_zero_ether_addr(const u8 * addr)
55 {
56 return ((addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]) ==
57 0x00);
58 }
59
60 static inline bool
is_multicast_ether_addr(const u8 * addr)61 is_multicast_ether_addr(const u8 * addr)
62 {
63 return (0x01 & addr[0]);
64 }
65
66 static inline bool
is_broadcast_ether_addr(const u8 * addr)67 is_broadcast_ether_addr(const u8 * addr)
68 {
69 return ((addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) ==
70 0xff);
71 }
72
73 static inline bool
is_valid_ether_addr(const u8 * addr)74 is_valid_ether_addr(const u8 * addr)
75 {
76 return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr);
77 }
78
79 static inline void
ether_addr_copy(u8 * dst,const u8 * src)80 ether_addr_copy(u8 * dst, const u8 * src)
81 {
82 memcpy(dst, src, 6);
83 }
84
85 static inline bool
ether_addr_equal_unaligned(const u8 * pa,const u8 * pb)86 ether_addr_equal_unaligned(const u8 *pa, const u8 *pb)
87 {
88 return (memcmp(pa, pb, 6) == 0);
89 }
90 #define ether_addr_equal(_pa, _pb) ether_addr_equal_unaligned(_pa, _pb)
91
92 static inline bool
ether_addr_equal_64bits(const u8 * pa,const u8 * pb)93 ether_addr_equal_64bits(const u8 *pa, const u8 *pb)
94 {
95 return (memcmp(pa, pb, 6) == 0);
96 }
97
98 static inline void
eth_broadcast_addr(u8 * pa)99 eth_broadcast_addr(u8 *pa)
100 {
101 memset(pa, 0xff, 6);
102 }
103
104 static inline void
eth_zero_addr(u8 * pa)105 eth_zero_addr(u8 *pa)
106 {
107 memset(pa, 0, 6);
108 }
109
110 static inline void
random_ether_addr(u8 * dst)111 random_ether_addr(u8 *dst)
112 {
113 arc4random_buf(dst, 6);
114
115 dst[0] &= 0xfe;
116 dst[0] |= 0x02;
117 }
118
119 static inline void
eth_random_addr(u8 * dst)120 eth_random_addr(u8 *dst)
121 {
122
123 random_ether_addr(dst);
124 }
125
126 static inline int
device_get_mac_address(struct device * dev,char * dst)127 device_get_mac_address(struct device *dev, char *dst)
128 {
129
130 /* XXX get mac address from FDT? */
131 return (-ENOENT);
132 }
133
134 #endif /* _LINUXKPI_LINUX_ETHERDEVICE_H_ */
135