Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 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/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 | |
| 39 | int mlx5_core_mad_ifc(struct mlx5_core_dev *dev, void *inb, void *outb, |
Jack Morgenstein | f241e74 | 2014-07-28 23:30:23 +0300 | [diff] [blame^] | 40 | u16 opmod, u8 port) |
Eli Cohen | e126ba9 | 2013-07-07 17:25:49 +0300 | [diff] [blame] | 41 | { |
| 42 | struct mlx5_mad_ifc_mbox_in *in = NULL; |
| 43 | struct mlx5_mad_ifc_mbox_out *out = NULL; |
| 44 | int err; |
| 45 | |
| 46 | in = kzalloc(sizeof(*in), GFP_KERNEL); |
| 47 | if (!in) |
| 48 | return -ENOMEM; |
| 49 | |
| 50 | out = kzalloc(sizeof(*out), GFP_KERNEL); |
| 51 | if (!out) { |
| 52 | err = -ENOMEM; |
| 53 | goto out; |
| 54 | } |
| 55 | |
| 56 | in->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_MAD_IFC); |
| 57 | in->hdr.opmod = cpu_to_be16(opmod); |
| 58 | in->port = port; |
| 59 | |
| 60 | memcpy(in->data, inb, sizeof(in->data)); |
| 61 | |
| 62 | err = mlx5_cmd_exec(dev, in, sizeof(*in), out, sizeof(*out)); |
| 63 | if (err) |
| 64 | goto out; |
| 65 | |
| 66 | if (out->hdr.status) { |
| 67 | err = mlx5_cmd_status_to_err(&out->hdr); |
| 68 | goto out; |
| 69 | } |
| 70 | |
| 71 | memcpy(outb, out->data, sizeof(out->data)); |
| 72 | |
| 73 | out: |
| 74 | kfree(out); |
| 75 | kfree(in); |
| 76 | return err; |
| 77 | } |
| 78 | EXPORT_SYMBOL_GPL(mlx5_core_mad_ifc); |