2 * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
3 * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
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:
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
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.
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
34 #include <linux/init.h>
35 #include <linux/errno.h>
39 int mlx4_xrcd_alloc(struct mlx4_dev *dev, u32 *xrcdn)
41 struct mlx4_priv *priv = mlx4_priv(dev);
43 *xrcdn = mlx4_bitmap_alloc(&priv->xrcd_bitmap);
49 EXPORT_SYMBOL_GPL(mlx4_xrcd_alloc);
51 void mlx4_xrcd_free(struct mlx4_dev *dev, u32 xrcdn)
53 mlx4_bitmap_free(&mlx4_priv(dev)->xrcd_bitmap, xrcdn);
55 EXPORT_SYMBOL_GPL(mlx4_xrcd_free);
57 int __devinit mlx4_init_xrcd_table(struct mlx4_dev *dev)
59 struct mlx4_priv *priv = mlx4_priv(dev);
61 return mlx4_bitmap_init(&priv->xrcd_bitmap, (1 << 16),
62 (1 << 16) - 1, dev->caps.reserved_xrcds + 1, 0);
65 void mlx4_cleanup_xrcd_table(struct mlx4_dev *dev)
67 mlx4_bitmap_cleanup(&mlx4_priv(dev)->xrcd_bitmap);