FreeBSD/Linux Kernel Cross Reference
sys/compat/linuxkpi/common/include/linux/etherdevice.h

     /*-
      * Copyright (c) 2015-2016 Mellanox Technologies, Ltd. All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice unmodified, this list of conditions, and the following
      *    disclaimer.
     * 2. 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.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     *
     * $FreeBSD$
     */
    #ifndef _LINUXKPI_LINUX_ETHERDEVICE_H_
    #define _LINUXKPI_LINUX_ETHERDEVICE_H_
    
    #include <linux/types.h>
    #include <linux/device.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;
    };
    
    static inline bool
    is_zero_ether_addr(const u8 * addr)
    {
            return ((addr[0] + addr[1] + addr[2] + addr[3] + addr[4] + addr[5]) == 0x00);
    }
    
    static inline bool
    is_multicast_ether_addr(const u8 * addr)
    {
            return (0x01 & addr[0]);
    }
    
    static inline bool
    is_broadcast_ether_addr(const u8 * addr)
    {
            return ((addr[0] + addr[1] + addr[2] + addr[3] + addr[4] + addr[5]) == (6 * 0xff));
    }
    
    static inline bool
    is_valid_ether_addr(const u8 * addr)
    {
            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_unaligned(const u8 *pa, const u8 *pb)
    {
            return (memcmp(pa, pb, 6) == 0);
    }
    #define ether_addr_equal(_pa, _pb)      ether_addr_equal_unaligned(_pa, _pb)
    
    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
   eth_zero_addr(u8 *pa)
   {
           memset(pa, 0, 6);
   }
   
   static inline void
   random_ether_addr(u8 *dst)
   {
           arc4random_buf(dst, 6);
   
           dst[0] &= 0xfe;
           dst[0] |= 0x02;
   }
   
   static inline void
   eth_random_addr(u8 *dst)
   {
   
           random_ether_addr(dst);
   }
   
   static inline int
   device_get_mac_address(struct device *dev, char *dst)
   {
   
           /* XXX get mac address from FDT? */
           return (-ENOENT);
   }
   
   #endif                                  /* _LINUXKPI_LINUX_ETHERDEVICE_H_ */

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