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