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 44 struct ethtool_eeprom { 45 u32 offset; 46 u32 len; 47 }; 48 49 struct ethtool_modinfo { 50 u32 type; 51 u32 eeprom_len; 52 }; 53 54 static inline bool 55 is_zero_ether_addr(const u8 * addr) 56 { 57 return ((addr[0] + addr[1] + addr[2] + addr[3] + addr[4] + addr[5]) == 0x00); 58 } 59 60 static inline bool 61 is_multicast_ether_addr(const u8 * addr) 62 { 63 return (0x01 & addr[0]); 64 } 65 66 static inline bool 67 is_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 72 static inline bool 73 is_valid_ether_addr(const u8 * addr) 74 { 75 return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr); 76 } 77 78 static inline void 79 ether_addr_copy(u8 * dst, const u8 * src) 80 { 81 memcpy(dst, src, 6); 82 } 83 84 static inline bool 85 ether_addr_equal(const u8 *pa, const u8 *pb) 86 { 87 return (memcmp(pa, pb, 6) == 0); 88 } 89 90 static inline bool 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 97 eth_broadcast_addr(u8 *pa) 98 { 99 memset(pa, 0xff, 6); 100 } 101 102 static inline void 103 random_ether_addr(u8 * dst) 104 { 105 if (read_random(dst, 6) == 0) 106 arc4rand(dst, 6, 0); 107 108 dst[0] &= 0xfe; 109 dst[0] |= 0x02; 110 } 111 112 #endif /* _LINUX_ETHERDEVICE */ 113