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 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 60 is_multicast_ether_addr(const u8 * addr) 61 { 62 return (0x01 & addr[0]); 63 } 64 65 static inline bool 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 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 78 ether_addr_copy(u8 * dst, const u8 * src) 79 { 80 memcpy(dst, src, 6); 81 } 82 83 static inline bool 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 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 eth_zero_addr(u8 *pa) 104 { 105 memset(pa, 0, 6); 106 } 107 108 static inline void 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 118 eth_random_addr(u8 *dst) 119 { 120 121 random_ether_addr(dst); 122 } 123 124 static inline int 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