1273246Shselasky/*- 2270710Shselasky * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved. 3270710Shselasky * Copyright (c) 2014 Mellanox Technologies, Ltd. All rights reserved. 4270710Shselasky * 5270710Shselasky * This software is available to you under a choice of one of two 6270710Shselasky * licenses. You may choose to be licensed under the terms of the GNU 7270710Shselasky * General Public License (GPL) Version 2, available from the file 8270710Shselasky * COPYING in the main directory of this source tree, or the 9270710Shselasky * OpenIB.org BSD license below: 10270710Shselasky * 11270710Shselasky * Redistribution and use in source and binary forms, with or 12270710Shselasky * without modification, are permitted provided that the following 13270710Shselasky * conditions are met: 14270710Shselasky * 15270710Shselasky * - Redistributions of source code must retain the above 16270710Shselasky * copyright notice, this list of conditions and the following 17270710Shselasky * disclaimer. 18270710Shselasky * 19270710Shselasky * - Redistributions in binary form must reproduce the above 20270710Shselasky * copyright notice, this list of conditions and the following 21270710Shselasky * disclaimer in the documentation and/or other materials 22270710Shselasky * provided with the distribution. 23270710Shselasky * 24270710Shselasky * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 25270710Shselasky * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 26270710Shselasky * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 27270710Shselasky * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 28270710Shselasky * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 29270710Shselasky * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 30270710Shselasky * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 31270710Shselasky * SOFTWARE. 32270710Shselasky */ 33270710Shselasky 34270710Shselasky 35270710Shselasky#ifndef _LINUX_ETHERDEVICE 36270710Shselasky#define _LINUX_ETHERDEVICE 37270710Shselasky 38270710Shselasky#include <linux/types.h> 39270710Shselasky 40301264Shselasky#include <sys/random.h> 41301264Shselasky#include <sys/libkern.h> 42301264Shselasky 43292105Shselasky#define ETH_MODULE_SFF_8079 1 44292105Shselasky#define ETH_MODULE_SFF_8079_LEN 256 45292105Shselasky#define ETH_MODULE_SFF_8472 2 46292105Shselasky#define ETH_MODULE_SFF_8472_LEN 512 47292105Shselasky#define ETH_MODULE_SFF_8636 3 48292105Shselasky#define ETH_MODULE_SFF_8636_LEN 256 49292105Shselasky#define ETH_MODULE_SFF_8436 4 50292105Shselasky#define ETH_MODULE_SFF_8436_LEN 256 51292105Shselasky 52292105Shselaskystruct ethtool_eeprom { 53292105Shselasky u32 offset; 54292105Shselasky u32 len; 55292105Shselasky}; 56292105Shselasky 57292105Shselaskystruct ethtool_modinfo { 58292105Shselasky u32 type; 59292105Shselasky u32 eeprom_len; 60292105Shselasky}; 61292105Shselasky 62270710Shselasky/** 63270710Shselasky * is_zero_ether_addr - Determine if give Ethernet address is all zeros. 64270710Shselasky * @addr: Pointer to a six-byte array containing the Ethernet address 65270710Shselasky * 66270710Shselasky * Return true if the address is all zeroes. 67270710Shselasky */ 68270710Shselaskystatic inline bool is_zero_ether_addr(const u8 *addr) 69270710Shselasky{ 70270710Shselasky return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]); 71270710Shselasky} 72270710Shselasky 73270710Shselasky 74270710Shselasky 75270710Shselasky/** 76270710Shselasky * is_multicast_ether_addr - Determine if the Ethernet address is a multicast. 77270710Shselasky * @addr: Pointer to a six-byte array containing the Ethernet address 78270710Shselasky * 79270710Shselasky * Return true if the address is a multicast address. 80270710Shselasky * By definition the broadcast address is also a multicast address. 81270710Shselasky */ 82270710Shselaskystatic inline bool is_multicast_ether_addr(const u8 *addr) 83270710Shselasky{ 84270710Shselasky return (0x01 & addr[0]); 85270710Shselasky} 86270710Shselasky 87270710Shselasky/** 88270710Shselasky * is_broadcast_ether_addr - Determine if the Ethernet address is broadcast 89270710Shselasky * @addr: Pointer to a six-byte array containing the Ethernet address 90270710Shselasky * 91270710Shselasky * Return true if the address is the broadcast address. 92270710Shselasky */ 93270710Shselaskystatic inline bool is_broadcast_ether_addr(const u8 *addr) 94270710Shselasky{ 95270710Shselasky return (addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) == 0xff; 96270710Shselasky} 97270710Shselasky 98270710Shselasky/** 99270710Shselasky * is_valid_ether_addr - Determine if the given Ethernet address is valid 100270710Shselasky * @addr: Pointer to a six-byte array containing the Ethernet address 101270710Shselasky * 102270710Shselasky * Check that the Ethernet address (MAC) is not 00:00:00:00:00:00, is not 103270710Shselasky * a multicast address, and is not FF:FF:FF:FF:FF:FF. 104270710Shselasky * 105270710Shselasky * Return true if the address is valid. 106270710Shselasky **/ 107270710Shselaskystatic inline bool is_valid_ether_addr(const u8 *addr) 108270710Shselasky{ 109270710Shselasky /* FF:FF:FF:FF:FF:FF is a multicast address so we don't need to 110270710Shselasky ** explicitly check for it here. */ 111270710Shselasky return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr); 112270710Shselasky} 113270710Shselasky 114282513Shselaskystatic inline void ether_addr_copy(u8 *dst, const u8 *src) 115282513Shselasky{ 116282513Shselasky memcpy(dst, src, 6); 117282513Shselasky} 118270710Shselasky 119301264Shselaskystatic inline bool 120301264Shselaskyether_addr_equal(const u8 *pa, const u8 *pb) 121301264Shselasky{ 122301264Shselasky return (memcmp(pa, pb, 6) == 0); 123301264Shselasky} 124301264Shselasky 125301264Shselaskystatic inline bool 126301264Shselaskyether_addr_equal_64bits(const u8 *pa, const u8 *pb) 127301264Shselasky{ 128301264Shselasky return (memcmp(pa, pb, 6) == 0); 129301264Shselasky} 130301264Shselasky 131301264Shselaskystatic inline void 132301264Shselaskyeth_broadcast_addr(u8 *pa) 133301264Shselasky{ 134301264Shselasky memset(pa, 0xff, 6); 135301264Shselasky} 136301264Shselasky 137301264Shselaskystatic inline void 138301264Shselaskyrandom_ether_addr(u8 * dst) 139301264Shselasky{ 140302271Shselasky if (read_random(dst, 6) == 0) 141302271Shselasky arc4rand(dst, 6, 0); 142301264Shselasky 143301264Shselasky dst[0] &= 0xfe; 144301264Shselasky dst[0] |= 0x02; 145301264Shselasky} 146301264Shselasky 147270710Shselasky#endif /* _LINUX_ETHERDEVICE */ 148