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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/infiniband/hw/mthca/mthca_pd.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_pd.c')
-rw-r--r--drivers/infiniband/hw/mthca/mthca_pd.c80
1 files changed, 80 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_pd.c b/drivers/infiniband/hw/mthca/mthca_pd.c
new file mode 100644
index 000000000000..ea66847e4ea3
--- /dev/null
+++ b/drivers/infiniband/hw/mthca/mthca_pd.c
@@ -0,0 +1,80 @@
1/*
2 * Copyright (c) 2004 Topspin Communications. 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 * $Id: mthca_pd.c 1349 2004-12-16 21:09:43Z roland $
33 */
34
35#include <linux/init.h>
36#include <linux/errno.h>
37
38#include "mthca_dev.h"
39
40int mthca_pd_alloc(struct mthca_dev *dev, struct mthca_pd *pd)
41{
42 int err;
43
44 might_sleep();
45
46 atomic_set(&pd->sqp_count, 0);
47 pd->pd_num = mthca_alloc(&dev->pd_table.alloc);
48 if (pd->pd_num == -1)
49 return -ENOMEM;
50
51 err = mthca_mr_alloc_notrans(dev, pd->pd_num,
52 MTHCA_MPT_FLAG_LOCAL_READ |
53 MTHCA_MPT_FLAG_LOCAL_WRITE,
54 &pd->ntmr);
55 if (err)
56 mthca_free(&dev->pd_table.alloc, pd->pd_num);
57
58 return err;
59}
60
61void mthca_pd_free(struct mthca_dev *dev, struct mthca_pd *pd)
62{
63 might_sleep();
64 mthca_free_mr(dev, &pd->ntmr);
65 mthca_free(&dev->pd_table.alloc, pd->pd_num);
66}
67
68int __devinit mthca_init_pd_table(struct mthca_dev *dev)
69{
70 return mthca_alloc_init(&dev->pd_table.alloc,
71 dev->limits.num_pds,
72 (1 << 24) - 1,
73 dev->limits.reserved_pds);
74}
75
76void __devexit mthca_cleanup_pd_table(struct mthca_dev *dev)
77{
78 /* XXX check if any PDs are still allocated? */
79 mthca_alloc_cleanup(&dev->pd_table.alloc);
80}