2 * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
3 * Copyright (c) 2014 Mellanox Technologies, Ltd. All rights reserved.
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenIB.org BSD license below:
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12 * without modification, are permitted provided that the following
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16 * copyright notice, this list of conditions and the following
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
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22 * provided with the distribution.
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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35 #ifndef _LINUX_ETHERDEVICE
36 #define _LINUX_ETHERDEVICE
38 #include <linux/types.h>
40 #define ETH_MODULE_SFF_8079 1
41 #define ETH_MODULE_SFF_8079_LEN 256
42 #define ETH_MODULE_SFF_8472 2
43 #define ETH_MODULE_SFF_8472_LEN 512
44 #define ETH_MODULE_SFF_8636 3
45 #define ETH_MODULE_SFF_8636_LEN 256
46 #define ETH_MODULE_SFF_8436 4
47 #define ETH_MODULE_SFF_8436_LEN 256
49 struct ethtool_eeprom {
54 struct ethtool_modinfo {
60 * is_zero_ether_addr - Determine if give Ethernet address is all zeros.
61 * @addr: Pointer to a six-byte array containing the Ethernet address
63 * Return true if the address is all zeroes.
65 static inline bool is_zero_ether_addr(const u8 *addr)
67 return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]);
73 * is_multicast_ether_addr - Determine if the Ethernet address is a multicast.
74 * @addr: Pointer to a six-byte array containing the Ethernet address
76 * Return true if the address is a multicast address.
77 * By definition the broadcast address is also a multicast address.
79 static inline bool is_multicast_ether_addr(const u8 *addr)
81 return (0x01 & addr[0]);
85 * is_broadcast_ether_addr - Determine if the Ethernet address is broadcast
86 * @addr: Pointer to a six-byte array containing the Ethernet address
88 * Return true if the address is the broadcast address.
90 static inline bool is_broadcast_ether_addr(const u8 *addr)
92 return (addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) == 0xff;
96 * is_valid_ether_addr - Determine if the given Ethernet address is valid
97 * @addr: Pointer to a six-byte array containing the Ethernet address
99 * Check that the Ethernet address (MAC) is not 00:00:00:00:00:00, is not
100 * a multicast address, and is not FF:FF:FF:FF:FF:FF.
102 * Return true if the address is valid.
104 static inline bool is_valid_ether_addr(const u8 *addr)
106 /* FF:FF:FF:FF:FF:FF is a multicast address so we don't need to
107 ** explicitly check for it here. */
108 return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr);
111 static inline void ether_addr_copy(u8 *dst, const u8 *src)
116 #endif /* _LINUX_ETHERDEVICE */