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)38 int mlx5_cmd_query_adapter(struct mlx5_core_dev *dev)
39 {
40 struct mlx5_cmd_query_adapter_mbox_out *out;
41 struct mlx5_cmd_query_adapter_mbox_in in;
42 int err;
43
44 out = kzalloc(sizeof(*out), GFP_KERNEL);
45 if (!out)
46 return -ENOMEM;
47
48 memset(&in, 0, sizeof(in));
49 in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_QUERY_ADAPTER);
50 err = mlx5_cmd_exec(dev, &in, sizeof(in), out, sizeof(*out));
51 if (err)
52 goto out_out;
53
54 if (out->hdr.status) {
55 err = mlx5_cmd_status_to_err(&out->hdr);
56 goto out_out;
57 }
58
59 memcpy(dev->board_id, out->vsd_psid, sizeof(out->vsd_psid));
60
61 out_out:
62 kfree(out);
63
64 return err;
65 }
66
mlx5_cmd_query_hca_cap(struct mlx5_core_dev * dev,struct mlx5_caps * caps)67 int mlx5_cmd_query_hca_cap(struct mlx5_core_dev *dev, struct mlx5_caps *caps)
68 {
69 return mlx5_core_get_caps(dev, caps, HCA_CAP_OPMOD_GET_CUR);
70 }
71
mlx5_query_odp_caps(struct mlx5_core_dev * dev,struct mlx5_odp_caps * caps)72 int mlx5_query_odp_caps(struct mlx5_core_dev *dev, struct mlx5_odp_caps *caps)
73 {
74 u8 in[MLX5_ST_SZ_BYTES(query_hca_cap_in)];
75 int out_sz = MLX5_ST_SZ_BYTES(query_hca_cap_out);
76 void *out;
77 int err;
78
79 if (!(dev->caps.gen.flags & MLX5_DEV_CAP_FLAG_ON_DMND_PG))
80 return -ENOTSUPP;
81
82 memset(in, 0, sizeof(in));
83 out = kzalloc(out_sz, GFP_KERNEL);
84 if (!out)
85 return -ENOMEM;
86 MLX5_SET(query_hca_cap_in, in, opcode, MLX5_CMD_OP_QUERY_HCA_CAP);
87 MLX5_SET(query_hca_cap_in, in, op_mod, HCA_CAP_OPMOD_GET_ODP_CUR);
88 err = mlx5_cmd_exec(dev, in, sizeof(in), out, out_sz);
89 if (err)
90 goto out;
91
92 err = mlx5_cmd_status_to_err_v2(out);
93 if (err) {
94 mlx5_core_warn(dev, "query cur hca ODP caps failed, %d\n", err);
95 goto out;
96 }
97
98 memcpy(caps, MLX5_ADDR_OF(query_hca_cap_out, out, capability_struct),
99 sizeof(*caps));
100
101 mlx5_core_dbg(dev, "on-demand paging capabilities:\nrc: %08x\nuc: %08x\nud: %08x\n",
102 be32_to_cpu(caps->per_transport_caps.rc_odp_caps),
103 be32_to_cpu(caps->per_transport_caps.uc_odp_caps),
104 be32_to_cpu(caps->per_transport_caps.ud_odp_caps));
105
106 out:
107 kfree(out);
108 return err;
109 }
110 EXPORT_SYMBOL(mlx5_query_odp_caps);
111
mlx5_cmd_init_hca(struct mlx5_core_dev * dev)112 int mlx5_cmd_init_hca(struct mlx5_core_dev *dev)
113 {
114 struct mlx5_cmd_init_hca_mbox_in in;
115 struct mlx5_cmd_init_hca_mbox_out out;
116 int err;
117
118 memset(&in, 0, sizeof(in));
119 memset(&out, 0, sizeof(out));
120 in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_INIT_HCA);
121 err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out));
122 if (err)
123 return err;
124
125 if (out.hdr.status)
126 err = mlx5_cmd_status_to_err(&out.hdr);
127
128 return err;
129 }
130
mlx5_cmd_teardown_hca(struct mlx5_core_dev * dev)131 int mlx5_cmd_teardown_hca(struct mlx5_core_dev *dev)
132 {
133 struct mlx5_cmd_teardown_hca_mbox_in in;
134 struct mlx5_cmd_teardown_hca_mbox_out out;
135 int err;
136
137 memset(&in, 0, sizeof(in));
138 memset(&out, 0, sizeof(out));
139 in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_TEARDOWN_HCA);
140 err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out));
141 if (err)
142 return err;
143
144 if (out.hdr.status)
145 err = mlx5_cmd_status_to_err(&out.hdr);
146
147 return err;
148 }
149