dapl_rmr_free.c revision 9517:b4839b0aa7a4 
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 */
62DAT_RETURN
63dapl_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		(void) 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
97bail:
98	return (dat_status);
99}
100