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
mlx5_cmd_query_adapter(struct mlx5_core_dev * dev,u32 * out,int outlen)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
mlx5_query_board_id(struct mlx5_core_dev * dev)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
mlx5_core_query_vendor_id(struct mlx5_core_dev * mdev,u32 * vendor_id)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
mlx5_query_hca_caps(struct mlx5_core_dev * dev)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
mlx5_cmd_init_hca(struct mlx5_core_dev * dev)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
mlx5_cmd_teardown_hca(struct mlx5_core_dev * dev)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 }
203