Commit | Line | Data |
---|---|---|
e126ba97 | 1 | /* |
302bdf68 | 2 | * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved. |
e126ba97 EC |
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/kernel.h> | |
34 | #include <linux/module.h> | |
35 | #include <linux/mlx5/driver.h> | |
36 | #include <linux/mlx5/cmd.h> | |
37 | #include "mlx5_core.h" | |
38 | ||
a97e2d86 | 39 | int mlx5_core_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb, |
f241e749 | 40 | u16 opmod, u8 port) |
e126ba97 | 41 | { |
20ed51c6 SM |
42 | int outlen = MLX5_ST_SZ_BYTES(mad_ifc_out); |
43 | int inlen = MLX5_ST_SZ_BYTES(mad_ifc_in); | |
44 | int err = -ENOMEM; | |
45 | void *data; | |
46 | void *resp; | |
47 | u32 *out; | |
48 | u32 *in; | |
e126ba97 | 49 | |
20ed51c6 SM |
50 | in = kzalloc(inlen, GFP_KERNEL); |
51 | out = kzalloc(outlen, GFP_KERNEL); | |
52 | if (!in || !out) | |
e126ba97 | 53 | goto out; |
e126ba97 | 54 | |
20ed51c6 SM |
55 | MLX5_SET(mad_ifc_in, in, opcode, MLX5_CMD_OP_MAD_IFC); |
56 | MLX5_SET(mad_ifc_in, in, op_mod, opmod); | |
57 | MLX5_SET(mad_ifc_in, in, port, port); | |
e126ba97 | 58 | |
20ed51c6 SM |
59 | data = MLX5_ADDR_OF(mad_ifc_in, in, mad); |
60 | memcpy(data, inb, MLX5_FLD_SZ_BYTES(mad_ifc_in, mad)); | |
e126ba97 | 61 | |
20ed51c6 | 62 | err = mlx5_cmd_exec(dev, in, inlen, out, outlen); |
e126ba97 EC |
63 | if (err) |
64 | goto out; | |
65 | ||
20ed51c6 SM |
66 | resp = MLX5_ADDR_OF(mad_ifc_out, out, response_mad_packet); |
67 | memcpy(outb, resp, | |
68 | MLX5_FLD_SZ_BYTES(mad_ifc_out, response_mad_packet)); | |
e126ba97 EC |
69 | |
70 | out: | |
71 | kfree(out); | |
72 | kfree(in); | |
73 | return err; | |
74 | } | |
75 | EXPORT_SYMBOL_GPL(mlx5_core_mad_ifc); |