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 * $FreeBSD$ 33 */ 34 35 #include <linux/module.h> 36 #include <dev/mlx5/mlx5_fpga_tools/tools.h> 37 #include <dev/mlx5/mlx5_fpga_tools/tools_char.h> 38 39 #if (__FreeBSD_version >= 1100000) 40 MODULE_DEPEND(mlx5fpga_tools, linuxkpi, 1, 1, 1); 41 #endif 42 MODULE_DEPEND(mlx5fpga_tools, mlx5, 1, 1, 1); 43 MODULE_DEPEND(mlx5fpga_tools, mlx5fpga, 1, 1, 1); 44 MODULE_VERSION(mlx5fpga_tools, 1); 45 46 static void mlx5_fpga_tools_create(struct mlx5_fpga_device *fdev); 47 static int mlx5_fpga_tools_add(struct mlx5_fpga_device *fdev, u32 vid, u16 pid); 48 static void mlx5_fpga_tools_remove(struct mlx5_fpga_device *fdev); 49 static void mlx5_fpga_tools_destroy(struct mlx5_fpga_device *fdev); 50 51 struct mlx5_fpga_tools_dev *mlx5_fpga_tools_alloc(struct mlx5_fpga_device *fdev); 52 void mlx5_fpga_tools_free(struct mlx5_fpga_tools_dev *tdev); 53 54 static struct mlx5_fpga_client mlx5_fpga_tools_client = { 55 .name = MLX5_FPGA_TOOLS_DRIVER_NAME, 56 .create = mlx5_fpga_tools_create, 57 .add = mlx5_fpga_tools_add, 58 .remove = mlx5_fpga_tools_remove, 59 .destroy = mlx5_fpga_tools_destroy, 60 }; 61 62 struct mlx5_fpga_tools_dev *mlx5_fpga_tools_alloc(struct mlx5_fpga_device *fdev) 63 { 64 int ret; 65 struct mlx5_fpga_tools_dev *tdev; 66 67 tdev = kzalloc(sizeof(*tdev), GFP_KERNEL); 68 if (!tdev) 69 goto out; 70 71 tdev->fdev = fdev; 72 sx_init(&tdev->lock, "mlx5fpgat"); 73 ret = mlx5_fpga_tools_char_add_one(tdev); 74 if (ret) 75 goto err_free; 76 77 goto out; 78 79 err_free: 80 kfree(tdev); 81 tdev = NULL; 82 83 out: 84 return tdev; 85 } 86 87 void mlx5_fpga_tools_free(struct mlx5_fpga_tools_dev *tdev) 88 { 89 mlx5_fpga_tools_char_remove_one(tdev); 90 kfree(tdev); 91 } 92 93 static void mlx5_fpga_tools_create(struct mlx5_fpga_device *fdev) 94 { 95 struct mlx5_fpga_tools_dev *dev = NULL; 96 97 dev_dbg(mlx5_fpga_dev(fdev), "tools_create\n"); 98 99 dev = mlx5_fpga_tools_alloc(fdev); 100 if (!dev) 101 return; 102 103 mlx5_fpga_client_data_set(fdev, &mlx5_fpga_tools_client, dev); 104 } 105 106 static int mlx5_fpga_tools_add(struct mlx5_fpga_device *fdev, u32 vid, u16 pid) 107 { 108 return 0; 109 } 110 111 static void mlx5_fpga_tools_remove(struct mlx5_fpga_device *fdev) 112 { 113 } 114 115 static void mlx5_fpga_tools_destroy(struct mlx5_fpga_device *fdev) 116 { 117 struct mlx5_fpga_tools_dev *dev; 118 119 dev_dbg(mlx5_fpga_dev(fdev), "tools_destroy\n"); 120 121 dev = mlx5_fpga_client_data_get(fdev, &mlx5_fpga_tools_client); 122 if (dev) 123 mlx5_fpga_tools_free(dev); 124 } 125 126 static int __init mlx5_fpga_tools_init(void) 127 { 128 int ret = mlx5_fpga_tools_char_init(); 129 130 if (ret) 131 return ret; 132 mlx5_fpga_client_register(&mlx5_fpga_tools_client); 133 return 0; 134 } 135 136 static void __exit mlx5_fpga_tools_exit(void) 137 { 138 mlx5_fpga_client_unregister(&mlx5_fpga_tools_client); 139 mlx5_fpga_tools_char_deinit(); 140 } 141 142 module_init_order(mlx5_fpga_tools_init, SI_ORDER_SECOND); 143 module_exit_order(mlx5_fpga_tools_exit, SI_ORDER_SECOND); 144