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 38static 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 50int 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 70out: 71 kfree(out); 72 return err; 73} 74 75int 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); 91out: 92 kfree(out); 93 return err; 94} 95EXPORT_SYMBOL(mlx5_core_query_vendor_id); 96 97int mlx5_query_hca_caps(struct mlx5_core_dev *dev) 98{ 99 int err; 100 101 err = mlx5_core_get_caps(dev, MLX5_CAP_GENERAL, HCA_CAP_OPMOD_GET_CUR); 102 if (err) 103 return err; 104 105 err = mlx5_core_get_caps(dev, MLX5_CAP_GENERAL, HCA_CAP_OPMOD_GET_MAX); 106 if (err) 107 return err; 108 109 if (MLX5_CAP_GEN(dev, eth_net_offloads)) { 110 err = mlx5_core_get_caps(dev, MLX5_CAP_ETHERNET_OFFLOADS, 111 HCA_CAP_OPMOD_GET_CUR); 112 if (err) 113 return err; 114 err = mlx5_core_get_caps(dev, MLX5_CAP_ETHERNET_OFFLOADS, 115 HCA_CAP_OPMOD_GET_MAX); 116 if (err) 117 return err; 118 } 119 120 if (MLX5_CAP_GEN(dev, pg)) { 121 err = mlx5_core_get_caps(dev, MLX5_CAP_ODP, 122 HCA_CAP_OPMOD_GET_CUR); 123 if (err) 124 return err; 125 err = mlx5_core_get_caps(dev, MLX5_CAP_ODP, 126 HCA_CAP_OPMOD_GET_MAX); 127 if (err) 128 return err; 129 } 130 131 if (MLX5_CAP_GEN(dev, atomic)) { 132 err = mlx5_core_get_caps(dev, MLX5_CAP_ATOMIC, 133 HCA_CAP_OPMOD_GET_CUR); 134 if (err) 135 return err; 136 err = mlx5_core_get_caps(dev, MLX5_CAP_ATOMIC, 137 HCA_CAP_OPMOD_GET_MAX); 138 if (err) 139 return err; 140 } 141 142 if (MLX5_CAP_GEN(dev, roce)) { 143 err = mlx5_core_get_caps(dev, MLX5_CAP_ROCE, 144 HCA_CAP_OPMOD_GET_CUR); 145 if (err) 146 return err; 147 err = mlx5_core_get_caps(dev, MLX5_CAP_ROCE, 148 HCA_CAP_OPMOD_GET_MAX); 149 if (err) 150 return err; 151 } 152 153 if (MLX5_CAP_GEN(dev, nic_flow_table)) { 154 err = mlx5_core_get_caps(dev, MLX5_CAP_FLOW_TABLE, 155 HCA_CAP_OPMOD_GET_CUR); 156 if (err) 157 return err; 158 err = mlx5_core_get_caps(dev, MLX5_CAP_FLOW_TABLE, 159 HCA_CAP_OPMOD_GET_MAX); 160 if (err) 161 return err; 162 } 163 return 0; 164} 165 166int mlx5_cmd_init_hca(struct mlx5_core_dev *dev) 167{ 168 struct mlx5_cmd_init_hca_mbox_in in; 169 struct mlx5_cmd_init_hca_mbox_out out; 170 int err; 171 172 memset(&in, 0, sizeof(in)); 173 memset(&out, 0, sizeof(out)); 174 in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_INIT_HCA); 175 err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out)); 176 if (err) 177 return err; 178 179 if (out.hdr.status) 180 err = mlx5_cmd_status_to_err(&out.hdr); 181 182 return err; 183} 184 185int mlx5_cmd_teardown_hca(struct mlx5_core_dev *dev) 186{ 187 struct mlx5_cmd_teardown_hca_mbox_in in; 188 struct mlx5_cmd_teardown_hca_mbox_out out; 189 int err; 190 191 memset(&in, 0, sizeof(in)); 192 memset(&out, 0, sizeof(out)); 193 in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_TEARDOWN_HCA); 194 err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out)); 195 if (err) 196 return err; 197 198 if (out.hdr.status) 199 err = mlx5_cmd_status_to_err(&out.hdr); 200 201 return err; 202} 203