drivers/net/ngbe/ngbe_regs_group.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018-2021 Beijing WangXun Technology Co., Ltd.
   3  * Copyright(c) 2010-2017 Intel Corporation
   4  */
   5
   6 #ifndef _NGBE_REGS_GROUP_H_
   7 #define _NGBE_REGS_GROUP_H_
   8
   9 #include "ngbe_ethdev.h"
  10
  11 struct ngbe_hw;
  12 struct reg_info {
  13         uint32_t base_addr;
  14         uint32_t count;
  15         uint32_t stride;
  16         const char *name;
  17 };
  18
  19 static inline int
  20 ngbe_read_regs(struct ngbe_hw *hw, const struct reg_info *reg,
  21         uint32_t *reg_buf)
  22 {
  23         unsigned int i;
  24
  25         for (i = 0; i < reg->count; i++)
  26                 reg_buf[i] = rd32(hw, reg->base_addr + i * reg->stride);
  27         return reg->count;
  28 };
  29
  30 static inline int
  31 ngbe_regs_group_count(const struct reg_info *regs)
  32 {
  33         int count = 0;
  34         int i = 0;
  35
  36         while (regs[i].count)
  37                 count += regs[i++].count;
  38         return count;
  39 };
  40
  41 static inline int
  42 ngbe_read_regs_group(struct rte_eth_dev *dev, uint32_t *reg_buf,
  43                                           const struct reg_info *regs)
  44 {
  45         int count = 0;
  46         int i = 0;
  47         struct ngbe_hw *hw = ngbe_dev_hw(dev);
  48
  49         while (regs[i].count)
  50                 count += ngbe_read_regs(hw, &regs[i++], &reg_buf[count]);
  51         return count;
  52 };
  53
  54 #endif /* _NGBE_REGS_GROUP_H_ */