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]) == 0x00);
57 }
58
59 static inline bool
is_multicast_ether_addr(const u8 * addr)60 is_multicast_ether_addr(const u8 * addr)
61 {
62 return (0x01 & addr[0]);
63 }
64
65 static inline bool
is_broadcast_ether_addr(const u8 * addr)66 is_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
71 static inline bool
is_valid_ether_addr(const u8 * addr)72 is_valid_ether_addr(const u8 * addr)
73 {
74 return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr);
75 }
76
77 static inline void
ether_addr_copy(u8 * dst,const u8 * src)78 ether_addr_copy(u8 * dst, const u8 * src)
79 {
80 memcpy(dst, src, 6);
81 }
82
83 static inline bool
ether_addr_equal_unaligned(const u8 * pa,const u8 * pb)84 ether_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
90 static inline bool
ether_addr_equal_64bits(const u8 * pa,const u8 * pb)91 ether_addr_equal_64bits(const u8 *pa, const u8 *pb)
92 {
93 return (memcmp(pa, pb, 6) == 0);
94 }
95
96 static inline void
eth_broadcast_addr(u8 * pa)97 eth_broadcast_addr(u8 *pa)
98 {
99 memset(pa, 0xff, 6);
100 }
101
102 static inline void
eth_zero_addr(u8 * pa)103 eth_zero_addr(u8 *pa)
104 {
105 memset(pa, 0, 6);
106 }
107
108 static inline void
random_ether_addr(u8 * dst)109 random_ether_addr(u8 *dst)
110 {
111 arc4random_buf(dst, 6);
112
113 dst[0] &= 0xfe;
114 dst[0] |= 0x02;
115 }
116
117 static inline void
eth_random_addr(u8 * dst)118 eth_random_addr(u8 *dst)
119 {
120
121 random_ether_addr(dst);
122 }
123
124 static inline int
device_get_mac_address(struct device * dev,char * dst)125 device_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