1/*
2 * Copyright (c) 2004 Topspin Communications.  All rights reserved.
3 * Copyright (c) 2005 Cisco Systems.  All rights reserved.
4 * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
5 *
6 * This software is available to you under a choice of one of two
7 * licenses.  You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
11 *
12 *     Redistribution and use in source and binary forms, with or
13 *     without modification, are permitted provided that the following
14 *     conditions are met:
15 *
16 *      - Redistributions of source code must retain the above
17 *        copyright notice, this list of conditions and the following
18 *        disclaimer.
19 *
20 *      - Redistributions in binary form must reproduce the above
21 *        copyright notice, this list of conditions and the following
22 *        disclaimer in the documentation and/or other materials
23 *        provided with the distribution.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 * SOFTWARE.
33 *
34 * $Id: mthca_pd.c,v 1.1.1.1 2007/08/03 18:52:32 Exp $
35 */
36
37#include <linux/errno.h>
38
39#include "mthca_dev.h"
40
41int mthca_pd_alloc(struct mthca_dev *dev, int privileged, struct mthca_pd *pd)
42{
43	int err = 0;
44
45	pd->privileged = privileged;
46
47	atomic_set(&pd->sqp_count, 0);
48	pd->pd_num = mthca_alloc(&dev->pd_table.alloc);
49	if (pd->pd_num == -1)
50		return -ENOMEM;
51
52	if (privileged) {
53		err = mthca_mr_alloc_notrans(dev, pd->pd_num,
54					     MTHCA_MPT_FLAG_LOCAL_READ |
55					     MTHCA_MPT_FLAG_LOCAL_WRITE,
56					     &pd->ntmr);
57		if (err)
58			mthca_free(&dev->pd_table.alloc, pd->pd_num);
59	}
60
61	return err;
62}
63
64void mthca_pd_free(struct mthca_dev *dev, struct mthca_pd *pd)
65{
66	if (pd->privileged)
67		mthca_free_mr(dev, &pd->ntmr);
68	mthca_free(&dev->pd_table.alloc, pd->pd_num);
69}
70
71int mthca_init_pd_table(struct mthca_dev *dev)
72{
73	return mthca_alloc_init(&dev->pd_table.alloc,
74				dev->limits.num_pds,
75				(1 << 24) - 1,
76				dev->limits.reserved_pds);
77}
78
79void mthca_cleanup_pd_table(struct mthca_dev *dev)
80{
81	mthca_alloc_cleanup(&dev->pd_table.alloc);
82}
83