projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| e126ba97 EC |
1 | /* |
| 2 | * Copyright (c) 2013, Mellanox Technologies inc. 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/module.h> | |
| 34 | #include <linux/mlx5/driver.h> | |
| 35 | #include <linux/mlx5/cmd.h> | |
| 36 | #include "mlx5_core.h" | |
| 37 | ||
| 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) | |
| 41 | { | |
| 42 | struct mlx5_access_reg_mbox_in *in = NULL; | |
| 43 | struct mlx5_access_reg_mbox_out *out = NULL; | |
| 44 | int err = -ENOMEM; | |
| 45 | ||
| 46 | in = mlx5_vzalloc(sizeof(*in) + size_in); | |
| 47 | if (!in) | |
| 48 | return -ENOMEM; | |
| 49 | ||
| 50 | out = mlx5_vzalloc(sizeof(*out) + size_out); | |
| 51 | if (!out) | |
| 52 | goto ex1; | |
| 53 | ||
| 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, | |
| e08a8761 | 60 | sizeof(*out) + size_out); |
| e126ba97 EC |
61 | if (err) |
| 62 | goto ex2; | |
| 63 | ||
| 64 | if (out->hdr.status) | |
| 65 | err = mlx5_cmd_status_to_err(&out->hdr); | |
| 66 | ||
| 67 | if (!err) | |
| 68 | memcpy(data_out, out->data, size_out); | |
| 69 | ||
| 70 | ex2: | |
| 71 | mlx5_vfree(out); | |
| 72 | ex1: | |
| 73 | mlx5_vfree(in); | |
| 74 | return err; | |
| 75 | } | |
| 76 | EXPORT_SYMBOL_GPL(mlx5_core_access_reg); | |
| 77 | ||
| 78 | ||
| 79 | struct mlx5_reg_pcap { | |
| 80 | u8 rsvd0; | |
| 81 | u8 port_num; | |
| 82 | u8 rsvd1[2]; | |
| 83 | __be32 caps_127_96; | |
| 84 | __be32 caps_95_64; | |
| 85 | __be32 caps_63_32; | |
| 86 | __be32 caps_31_0; | |
| 87 | }; | |
| 88 | ||
| f241e749 | 89 | int mlx5_set_port_caps(struct mlx5_core_dev *dev, u8 port_num, u32 caps) |
| e126ba97 EC |
90 | { |
| 91 | struct mlx5_reg_pcap in; | |
| 92 | struct mlx5_reg_pcap out; | |
| 93 | int err; | |
| 94 | ||
| 95 | memset(&in, 0, sizeof(in)); | |
| 96 | in.caps_127_96 = cpu_to_be32(caps); | |
| 97 | in.port_num = port_num; | |
| 98 | ||
| 99 | err = mlx5_core_access_reg(dev, &in, sizeof(in), &out, | |
| 100 | sizeof(out), MLX5_REG_PCAP, 0, 1); | |
| 101 | ||
| 102 | return err; | |
| 103 | } | |
| 104 | EXPORT_SYMBOL_GPL(mlx5_set_port_caps); |