2 * Copyright (c) 2013, Mellanox Technologies inc. All rights reserved.
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:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
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.
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
33 #include <linux/module.h>
34 #include <linux/mlx5/driver.h>
35 #include <linux/mlx5/cmd.h>
36 #include "mlx5_core.h"
38 int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in,
39 int size_in, void *data_out, int size_out,
40 u16 reg_num, int arg, int write)
42 struct mlx5_access_reg_mbox_in *in = NULL;
43 struct mlx5_access_reg_mbox_out *out = NULL;
46 in = mlx5_vzalloc(sizeof(*in) + size_in);
50 out = mlx5_vzalloc(sizeof(*out) + size_out);
54 memcpy(in->data, data_in, size_in);
55 in->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_ACCESS_REG);
56 in->hdr.opmod = cpu_to_be16(!write);
57 in->arg = cpu_to_be32(arg);
58 in->register_id = cpu_to_be16(reg_num);
59 err = mlx5_cmd_exec(dev, in, sizeof(*in) + size_in, out,
60 sizeof(out) + size_out);
65 err = mlx5_cmd_status_to_err(&out->hdr);
68 memcpy(data_out, out->data, size_out);
76 EXPORT_SYMBOL_GPL(mlx5_core_access_reg);
79 struct mlx5_reg_pcap {
89 int mlx5_set_port_caps(struct mlx5_core_dev *dev, int port_num, u32 caps)
91 struct mlx5_reg_pcap in;
92 struct mlx5_reg_pcap out;
95 memset(&in, 0, sizeof(in));
96 in.caps_127_96 = cpu_to_be32(caps);
97 in.port_num = port_num;
99 err = mlx5_core_access_reg(dev, &in, sizeof(in), &out,
100 sizeof(out), MLX5_REG_PCAP, 0, 1);
104 EXPORT_SYMBOL_GPL(mlx5_set_port_caps);