1 /*- 2 * Copyright (c) 2013-2015, Mellanox Technologies, Ltd. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 * 25 * $FreeBSD$ 26 */ 27 28 #include <linux/kernel.h> 29 #include <linux/module.h> 30 #include <dev/mlx5/driver.h> 31 #include "mlx5_core.h" 32 33 int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn) 34 { 35 u32 in[MLX5_ST_SZ_DW(alloc_pd_in)]; 36 u32 out[MLX5_ST_SZ_DW(alloc_pd_out)]; 37 int err; 38 39 memset(in, 0, sizeof(in)); 40 41 MLX5_SET(alloc_pd_in, in, opcode, MLX5_CMD_OP_ALLOC_PD); 42 43 memset(out, 0, sizeof(out)); 44 err = mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, sizeof(out)); 45 if (err) 46 return err; 47 48 *pdn = MLX5_GET(alloc_pd_out, out, pd); 49 return 0; 50 } 51 EXPORT_SYMBOL(mlx5_core_alloc_pd); 52 53 int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn) 54 { 55 u32 in[MLX5_ST_SZ_DW(dealloc_pd_in)]; 56 u32 out[MLX5_ST_SZ_DW(dealloc_pd_out)]; 57 58 memset(in, 0, sizeof(in)); 59 60 MLX5_SET(dealloc_pd_in, in, opcode, MLX5_CMD_OP_DEALLOC_PD); 61 MLX5_SET(dealloc_pd_in, in, pd, pdn); 62 63 memset(out, 0, sizeof(out)); 64 return mlx5_cmd_exec_check_status(dev, in, sizeof(in), 65 out, sizeof(out)); 66 } 67 EXPORT_SYMBOL(mlx5_core_dealloc_pd); 68