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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 | ||
39 | struct mlx5_alloc_pd_mbox_in { | |
40 | struct mlx5_inbox_hdr hdr; | |
41 | u8 rsvd[8]; | |
42 | }; | |
43 | ||
44 | struct mlx5_alloc_pd_mbox_out { | |
45 | struct mlx5_outbox_hdr hdr; | |
46 | __be32 pdn; | |
47 | u8 rsvd[4]; | |
48 | }; | |
49 | ||
50 | struct mlx5_dealloc_pd_mbox_in { | |
51 | struct mlx5_inbox_hdr hdr; | |
52 | __be32 pdn; | |
53 | u8 rsvd[4]; | |
54 | }; | |
55 | ||
56 | struct mlx5_dealloc_pd_mbox_out { | |
57 | struct mlx5_outbox_hdr hdr; | |
58 | u8 rsvd[8]; | |
59 | }; | |
60 | ||
61 | int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn) | |
62 | { | |
63 | struct mlx5_alloc_pd_mbox_in in; | |
64 | struct mlx5_alloc_pd_mbox_out out; | |
65 | int err; | |
66 | ||
67 | memset(&in, 0, sizeof(in)); | |
68 | memset(&out, 0, sizeof(out)); | |
69 | in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_ALLOC_PD); | |
70 | err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out)); | |
71 | if (err) | |
72 | return err; | |
73 | ||
74 | if (out.hdr.status) | |
75 | return mlx5_cmd_status_to_err(&out.hdr); | |
76 | ||
77 | *pdn = be32_to_cpu(out.pdn) & 0xffffff; | |
78 | return err; | |
79 | } | |
80 | EXPORT_SYMBOL(mlx5_core_alloc_pd); | |
81 | ||
82 | int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn) | |
83 | { | |
84 | struct mlx5_dealloc_pd_mbox_in in; | |
85 | struct mlx5_dealloc_pd_mbox_out out; | |
86 | int err; | |
87 | ||
88 | memset(&in, 0, sizeof(in)); | |
89 | memset(&out, 0, sizeof(out)); | |
90 | in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_DEALLOC_PD); | |
91 | in.pdn = cpu_to_be32(pdn); | |
92 | err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out)); | |
93 | if (err) | |
94 | return err; | |
95 | ||
96 | if (out.hdr.status) | |
97 | return mlx5_cmd_status_to_err(&out.hdr); | |
98 | ||
99 | return err; | |
100 | } | |
101 | EXPORT_SYMBOL(mlx5_core_dealloc_pd); |