1 /* 2 * Copyright (c) 2013-2015, 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 <linux/mlx5/driver.h> 34 #include <linux/mlx5/cmd.h> 35 #include <linux/module.h> 36 #include "mlx5_core.h" 37 38 static int mlx5_cmd_query_adapter(struct mlx5_core_dev *dev, u32 *out, 39 int outlen) 40 { 41 u32 in[MLX5_ST_SZ_DW(query_adapter_in)]; 42 43 memset(in, 0, sizeof(in)); 44 45 MLX5_SET(query_adapter_in, in, opcode, MLX5_CMD_OP_QUERY_ADAPTER); 46 47 return mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, outlen); 48 } 49 50 int mlx5_query_board_id(struct mlx5_core_dev *dev) 51 { 52 u32 *out; 53 int outlen = MLX5_ST_SZ_BYTES(query_adapter_out); 54 int err; 55 56 out = kzalloc(outlen, GFP_KERNEL); 57 if (!out) 58 return -ENOMEM; 59 60 err = mlx5_cmd_query_adapter(dev, out, outlen); 61 if (err) 62 goto out; 63 64 memcpy(dev->board_id, 65 MLX5_ADDR_OF(query_adapter_out, out, 66 query_adapter_struct.vsd_contd_psid), 67 MLX5_FLD_SZ_BYTES(query_adapter_out, 68 query_adapter_struct.vsd_contd_psid)); 69 70 out: 71 kfree(out); 72 return err; 73 } 74 75 int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id) 76 { 77 u32 *out; 78 int outlen = MLX5_ST_SZ_BYTES(query_adapter_out); 79 int err; 80 81 out = kzalloc(outlen, GFP_KERNEL); 82 if (!out) 83 return -ENOMEM; 84 85 err = mlx5_cmd_query_adapter(mdev, out, outlen); 86 if (err) 87 goto out; 88 89 *vendor_id = MLX5_GET(query_adapter_out, out, 90 query_adapter_struct.ieee_vendor_id); 91 out: 92 kfree(out); 93 return err; 94 } 95 EXPORT_SYMBOL(mlx5_core_query_vendor_id); 96 97 int mlx5_query_hca_caps(struct mlx5_core_dev *dev) 98 { 99 int err; 100 101 err = mlx5_core_get_caps(dev, MLX5_CAP_GENERAL); 102 if (err) 103 return err; 104 105 if (MLX5_CAP_GEN(dev, eth_net_offloads)) { 106 err = mlx5_core_get_caps(dev, MLX5_CAP_ETHERNET_OFFLOADS); 107 if (err) 108 return err; 109 } 110 111 if (MLX5_CAP_GEN(dev, pg)) { 112 err = mlx5_core_get_caps(dev, MLX5_CAP_ODP); 113 if (err) 114 return err; 115 } 116 117 if (MLX5_CAP_GEN(dev, atomic)) { 118 err = mlx5_core_get_caps(dev, MLX5_CAP_ATOMIC); 119 if (err) 120 return err; 121 } 122 123 if (MLX5_CAP_GEN(dev, roce)) { 124 err = mlx5_core_get_caps(dev, MLX5_CAP_ROCE); 125 if (err) 126 return err; 127 } 128 129 if (MLX5_CAP_GEN(dev, nic_flow_table)) { 130 err = mlx5_core_get_caps(dev, MLX5_CAP_FLOW_TABLE); 131 if (err) 132 return err; 133 } 134 135 if (MLX5_CAP_GEN(dev, vport_group_manager) && 136 MLX5_CAP_GEN(dev, eswitch_flow_table)) { 137 err = mlx5_core_get_caps(dev, MLX5_CAP_ESWITCH_FLOW_TABLE); 138 if (err) 139 return err; 140 } 141 142 if (MLX5_CAP_GEN(dev, eswitch_flow_table)) { 143 err = mlx5_core_get_caps(dev, MLX5_CAP_ESWITCH); 144 if (err) 145 return err; 146 } 147 148 if (MLX5_CAP_GEN(dev, vector_calc)) { 149 err = mlx5_core_get_caps(dev, MLX5_CAP_VECTOR_CALC); 150 if (err) 151 return err; 152 } 153 154 if (MLX5_CAP_GEN(dev, qos)) { 155 err = mlx5_core_get_caps(dev, MLX5_CAP_QOS); 156 if (err) 157 return err; 158 } 159 160 return 0; 161 } 162 163 int mlx5_cmd_init_hca(struct mlx5_core_dev *dev) 164 { 165 struct mlx5_cmd_init_hca_mbox_in in; 166 struct mlx5_cmd_init_hca_mbox_out out; 167 int err; 168 169 memset(&in, 0, sizeof(in)); 170 memset(&out, 0, sizeof(out)); 171 in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_INIT_HCA); 172 err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out)); 173 if (err) 174 return err; 175 176 if (out.hdr.status) 177 err = mlx5_cmd_status_to_err(&out.hdr); 178 179 return err; 180 } 181 182 int mlx5_cmd_teardown_hca(struct mlx5_core_dev *dev) 183 { 184 struct mlx5_cmd_teardown_hca_mbox_in in; 185 struct mlx5_cmd_teardown_hca_mbox_out out; 186 int err; 187 188 memset(&in, 0, sizeof(in)); 189 memset(&out, 0, sizeof(out)); 190 in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_TEARDOWN_HCA); 191 err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out)); 192 if (err) 193 return err; 194 195 if (out.hdr.status) 196 err = mlx5_cmd_status_to_err(&out.hdr); 197 198 return err; 199 } 200