1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2002-2003, Network Appliance, Inc. All rights reserved.
24 */
25
26 /*
27 * Copyright 2003 Sun Microsystems, Inc. All rights reserved.
28 * Use is subject to license terms.
29 */
30
31 /*
32 *
33 * MODULE: dapl_rmr_free.c
34 *
35 * PURPOSE: Memory management
36 * Description: Interfaces in this file are completely described in
37 * the DAPL 1.1 API, Chapter 6, section 6
38 *
39 */
40
41 #include "dapl_rmr_util.h"
42 #include "dapl_adapter_util.h"
43 #include "dapl_ia_util.h"
44
45 /*
46 * dapl_rmr_free
47 *
48 * DAPL Requirements Version xxx, 6.6.4.2
49 *
50 * Destroy an instance of the Remote Memory Region
51 *
52 * Input:
53 * rmr_handle
54 *
55 * Output:
56 * none
57 *
58 * Returns:
59 * DAT_SUCCESS
60 * DAT_INVALID_PARAMETER
61 */
62 DAT_RETURN
dapl_rmr_free(IN DAT_RMR_HANDLE rmr_handle)63 dapl_rmr_free(IN DAT_RMR_HANDLE rmr_handle)
64 {
65 DAPL_RMR *rmr;
66 DAT_RETURN dat_status;
67
68 dat_status = DAT_SUCCESS;
69
70 if (DAPL_BAD_HANDLE(rmr_handle, DAPL_MAGIC_RMR)) {
71 dat_status = DAT_ERROR(DAT_INVALID_HANDLE,
72 DAT_INVALID_HANDLE_RMR);
73 goto bail;
74 }
75
76 rmr = (DAPL_RMR *)rmr_handle;
77
78 /*
79 * If the user did not perform an unbind op, release
80 * counts here.
81 */
82 if (rmr->param.lmr_triplet.virtual_address != 0) {
83 dapl_os_atomic_dec(&rmr->lmr->lmr_ref_count);
84 rmr->param.lmr_triplet.virtual_address = 0;
85 }
86
87 dat_status = dapls_ib_mw_free(rmr);
88
89 if (dat_status != DAT_SUCCESS) {
90 goto bail;
91 }
92
93 dapl_os_atomic_dec(&rmr->pz->pz_ref_count);
94
95 dapl_rmr_dealloc(rmr);
96
97 bail:
98 return (dat_status);
99 }
100