drivers/net/ethernet/mellanox/mlx5/core/fw.c

   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, 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
 166 int 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
 185 int 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 }