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

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Huawei HiNIC PCI Express Linux driver
   4  * Copyright(c) 2017 Huawei Technologies Co., Ltd
   5  */
   6
   7 #ifndef HINIC_COMMON_H
   8 #define HINIC_COMMON_H
   9
  10 #include <linux/types.h>
  11
  12 #define UPPER_8_BITS(data)      (((data) >> 8) & 0xFF)
  13 #define LOWER_8_BITS(data)      ((data) & 0xFF)
  14
  15 struct hinic_sge {
  16         u32             hi_addr;
  17         u32             lo_addr;
  18         u32             len;
  19 };
  20
  21 void hinic_cpu_to_be32(void *data, int len);
  22
  23 void hinic_be32_to_cpu(void *data, int len);
  24
  25 void hinic_set_sge(struct hinic_sge *sge, dma_addr_t addr, int len);
  26
  27 dma_addr_t hinic_sge_to_dma(struct hinic_sge *sge);
  28
  29 #endif