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/*-
* Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2014 Mellanox Technologies, Ltd. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _LINUX_ETHERDEVICE
#define _LINUX_ETHERDEVICE
#include <linux/types.h>
#include <sys/random.h>
#include <sys/libkern.h>
#define ETH_MODULE_SFF_8079 1
#define ETH_MODULE_SFF_8079_LEN 256
#define ETH_MODULE_SFF_8472 2
#define ETH_MODULE_SFF_8472_LEN 512
#define ETH_MODULE_SFF_8636 3
#define ETH_MODULE_SFF_8636_LEN 256
#define ETH_MODULE_SFF_8436 4
#define ETH_MODULE_SFF_8436_LEN 256
struct ethtool_eeprom {
u32 offset;
u32 len;
};
struct ethtool_modinfo {
u32 type;
u32 eeprom_len;
};
/**
* is_zero_ether_addr - Determine if give Ethernet address is all zeros.
* @addr: Pointer to a six-byte array containing the Ethernet address
*
* Return true if the address is all zeroes.
*/
static inline bool is_zero_ether_addr(const u8 *addr)
{
return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]);
}
/**
* is_multicast_ether_addr - Determine if the Ethernet address is a multicast.
* @addr: Pointer to a six-byte array containing the Ethernet address
*
* Return true if the address is a multicast address.
* By definition the broadcast address is also a multicast address.
*/
static inline bool is_multicast_ether_addr(const u8 *addr)
{
return (0x01 & addr[0]);
}
/**
* is_broadcast_ether_addr - Determine if the Ethernet address is broadcast
* @addr: Pointer to a six-byte array containing the Ethernet address
*
* Return true if the address is the broadcast address.
*/
static inline bool is_broadcast_ether_addr(const u8 *addr)
{
return (addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) == 0xff;
}
/**
* is_valid_ether_addr - Determine if the given Ethernet address is valid
* @addr: Pointer to a six-byte array containing the Ethernet address
*
* Check that the Ethernet address (MAC) is not 00:00:00:00:00:00, is not
* a multicast address, and is not FF:FF:FF:FF:FF:FF.
*
* Return true if the address is valid.
**/
static inline bool is_valid_ether_addr(const u8 *addr)
{
/* FF:FF:FF:FF:FF:FF is a multicast address so we don't need to
** explicitly check for it here. */
return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr);
}
static inline void ether_addr_copy(u8 *dst, const u8 *src)
{
memcpy(dst, src, 6);
}
static inline bool
ether_addr_equal(const u8 *pa, const u8 *pb)
{
return (memcmp(pa, pb, 6) == 0);
}
static inline bool
ether_addr_equal_64bits(const u8 *pa, const u8 *pb)
{
return (memcmp(pa, pb, 6) == 0);
}
static inline void
eth_broadcast_addr(u8 *pa)
{
memset(pa, 0xff, 6);
}
static inline void
random_ether_addr(u8 * dst)
{
if (read_random(dst, 6) == 0)
arc4rand(dst, 6, 0);
dst[0] &= 0xfe;
dst[0] |= 0x02;
}
#endif /* _LINUX_ETHERDEVICE */
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