1 /*
2 * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
3 * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
4 *
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenIB.org BSD license below:
10 *
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
13 * conditions are met:
14 *
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
17 * disclaimer.
18 *
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31 * SOFTWARE.
32 */
33
34 #include <linux/init.h>
35 #include <linux/errno.h>
36
37 #include <asm/page.h>
38
39 #include "mlx4.h"
40 #include "icm.h"
41
42 int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn)
43 {
44 struct mlx4_priv *priv = mlx4_priv(dev);
45
46 *pdn = mlx4_bitmap_alloc(&priv->pd_bitmap);
47 if (*pdn == -1)
48 return -ENOMEM;
49
50 return 0;
51 }
52 EXPORT_SYMBOL_GPL(mlx4_pd_alloc);
53
54 void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn)
55 {
56 mlx4_bitmap_free(&mlx4_priv(dev)->pd_bitmap, pdn);
57 }
58 EXPORT_SYMBOL_GPL(mlx4_pd_free);
59
60 int mlx4_init_pd_table(struct mlx4_dev *dev)
61 {
62 struct mlx4_priv *priv = mlx4_priv(dev);
63
64 return mlx4_bitmap_init(&priv->pd_bitmap, dev->caps.num_pds,
65 (1 << 24) - 1, dev->caps.reserved_pds);
66 }
67
68 void mlx4_cleanup_pd_table(struct mlx4_dev *dev)
69 {
70 mlx4_bitmap_cleanup(&mlx4_priv(dev)->pd_bitmap);
71 }
72
73
74 int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar)
75 {
76 uar->index = mlx4_bitmap_alloc(&mlx4_priv(dev)->uar_table.bitmap);
77 if (uar->index == -1)
78 return -ENOMEM;
79
80 uar->pfn = (pci_resource_start(dev->pdev, 2) >> PAGE_SHIFT) + uar->index;
81
82 return 0;
83 }
84 EXPORT_SYMBOL_GPL(mlx4_uar_alloc);
85
86 void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar)
87 {
88 mlx4_bitmap_free(&mlx4_priv(dev)->uar_table.bitmap, uar->index);
89 }
90 EXPORT_SYMBOL_GPL(mlx4_uar_free);
91
92 int mlx4_init_uar_table(struct mlx4_dev *dev)
93 {
94 return mlx4_bitmap_init(&mlx4_priv(dev)->uar_table.bitmap,
95 dev->caps.num_uars, dev->caps.num_uars - 1,
96 max(128, dev->caps.reserved_uars));
97 }
98
99 void mlx4_cleanup_uar_table(struct mlx4_dev *dev)
100 {
101 mlx4_bitmap_cleanup(&mlx4_priv(dev)->uar_table.bitmap);
102 }
103
|
This page was automatically generated by the
LXR engine.
|