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
38int 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
61out_out:
62	kfree(out);
63
64	return err;
65}
66
67int 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
72int 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
106out:
107	kfree(out);
108	return err;
109}
110EXPORT_SYMBOL(mlx5_query_odp_caps);
111
112int 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
131int 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