1 /* 2 * Copyright (c) 2017, Mellanox Technologies. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 */ 32 33 #include "cmd.h" 34 35 int mlx5_cmd_null_mkey(struct mlx5_core_dev *dev, u32 *null_mkey) 36 { 37 u32 out[MLX5_ST_SZ_DW(query_special_contexts_out)] = {}; 38 u32 in[MLX5_ST_SZ_DW(query_special_contexts_in)] = {}; 39 int err; 40 41 MLX5_SET(query_special_contexts_in, in, opcode, 42 MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS); 43 err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); 44 if (!err) 45 *null_mkey = MLX5_GET(query_special_contexts_out, out, 46 null_mkey); 47 return err; 48 } 49 50 int mlx5_cmd_query_cong_counter(struct mlx5_core_dev *dev, 51 bool reset, void *out, int out_size) 52 { 53 u32 in[MLX5_ST_SZ_DW(query_cong_statistics_in)] = { }; 54 55 MLX5_SET(query_cong_statistics_in, in, opcode, 56 MLX5_CMD_OP_QUERY_CONG_STATISTICS); 57 MLX5_SET(query_cong_statistics_in, in, clear, reset); 58 return mlx5_cmd_exec(dev, in, sizeof(in), out, out_size); 59 } 60