drivers/net/ethernet/huawei/hinic/hinic_common.h

   1 /*
   2  * Huawei HiNIC PCI Express Linux driver
   3  * Copyright(c) 2017 Huawei Technologies Co., Ltd
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms and conditions of the GNU General Public License,
   7  * version 2, as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * for more details.
  13  *
  14  */
  15
  16 #ifndef HINIC_COMMON_H
  17 #define HINIC_COMMON_H
  18
  19 #include <linux/types.h>
  20
  21 #define UPPER_8_BITS(data)      (((data) >> 8) & 0xFF)
  22 #define LOWER_8_BITS(data)      ((data) & 0xFF)
  23
  24 struct hinic_sge {
  25         u32             hi_addr;
  26         u32             lo_addr;
  27         u32             len;
  28 };
  29
  30 void hinic_cpu_to_be32(void *data, int len);
  31
  32 void hinic_be32_to_cpu(void *data, int len);
  33
  34 void hinic_set_sge(struct hinic_sge *sge, dma_addr_t addr, int len);
  35
  36 dma_addr_t hinic_sge_to_dma(struct hinic_sge *sge);
  37
  38 #endif