drivers/regex/mlx5/mlx5_regex_devx.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright 2020 Mellanox Technologies, Ltd
   3  */
   4
   5 #include <rte_errno.h>
   6 #include <rte_log.h>
   7
   8 #include <mlx5_glue.h>
   9 #include <mlx5_devx_cmds.h>
  10 #include <mlx5_prm.h>
  11
  12 #include "mlx5_regex.h"
  13 #include "mlx5_regex_utils.h"
  14
  15 int
  16 mlx5_devx_regex_register_write(struct ibv_context *ctx, int engine_id,
  17                                uint32_t addr, uint32_t data)
  18 {
  19         uint32_t out[MLX5_ST_SZ_DW(set_regexp_register_out)] = {0};
  20         uint32_t in[MLX5_ST_SZ_DW(set_regexp_register_in)] = {0};
  21         int ret;
  22
  23         MLX5_SET(set_regexp_register_in, in, opcode,
  24                  MLX5_CMD_SET_REGEX_REGISTERS);
  25         MLX5_SET(set_regexp_register_in, in, engine_id, engine_id);
  26         MLX5_SET(set_regexp_register_in, in, register_address, addr);
  27         MLX5_SET(set_regexp_register_in, in, register_data, data);
  28
  29         ret = mlx5_glue->devx_general_cmd(ctx, in, sizeof(in), out,
  30                                           sizeof(out));
  31         if (ret) {
  32                 DRV_LOG(ERR, "Set regexp register failed %d", ret);
  33                 rte_errno = errno;
  34                 return -errno;
  35         }
  36         return 0;
  37 }
  38
  39 int
  40 mlx5_devx_regex_register_read(struct ibv_context *ctx, int engine_id,
  41                               uint32_t addr, uint32_t *data)
  42 {
  43         uint32_t out[MLX5_ST_SZ_DW(query_regexp_register_out)] = {0};
  44         uint32_t in[MLX5_ST_SZ_DW(query_regexp_register_in)] = {0};
  45         int ret;
  46
  47         MLX5_SET(query_regexp_register_in, in, opcode,
  48                  MLX5_CMD_QUERY_REGEX_REGISTERS);
  49         MLX5_SET(query_regexp_register_in, in, engine_id, engine_id);
  50         MLX5_SET(query_regexp_register_in, in, register_address, addr);
  51
  52         ret = mlx5_glue->devx_general_cmd(ctx, in, sizeof(in), out,
  53                                           sizeof(out));
  54         if (ret) {
  55                 DRV_LOG(ERR, "Query regexp register failed %d", ret);
  56                 rte_errno = errno;
  57                 return -errno;
  58         }
  59         *data = MLX5_GET(query_regexp_register_out, out, register_data);
  60         return 0;
  61 }