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 2009 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include <sun_sas.h>
28
29 /*
30 * Closes an adapter
31 *
32 * the handle is removed from the open_handles list
33 */
34 void
Sun_sasCloseAdapter(HBA_HANDLE handle)35 Sun_sasCloseAdapter(HBA_HANDLE handle)
36 {
37 const char ROUTINE[] = "Sun_sasCloseAdapter";
38 struct open_handle *open_handle_ptr, *open_handle_prev_ptr;
39 int found = 0;
40
41 if (global_hba_head == NULL) {
42 log(LOG_DEBUG, ROUTINE,
43 "Attempted to close an invalid handle %08lx. "
44 "There are no hba handles loaded in the VSL.",
45 handle);
46 return;
47 }
48
49 /* Removing handle from open_handles; */
50 lock(&open_handles_lock);
51 if (global_hba_head->open_handles == NULL) {
52 /* check to see if there are any open global_hba_head */
53 log(LOG_DEBUG, ROUTINE,
54 "Attempted to close an invalid handle %08lx. "
55 "There are no open handles in the VSL.",
56 handle);
57 } else if (global_hba_head->open_handles->next == NULL) {
58 /* there is only one handle open */
59 if (global_hba_head->open_handles->handle == handle) {
60 free(global_hba_head->open_handles);
61 global_hba_head->open_handles = NULL;
62 } else {
63 log(LOG_DEBUG, ROUTINE,
64 "Attempted to close an invalid handle %08lx. "
65 "Unable to find handle to close.", handle);
66 }
67 } else { /* there is more than one handle open */
68 open_handle_ptr = global_hba_head->open_handles;
69 if (open_handle_ptr->handle == handle) {
70 global_hba_head->open_handles = open_handle_ptr->next;
71 free(open_handle_ptr);
72 } else {
73 for (open_handle_ptr = open_handle_ptr->next,
74 open_handle_prev_ptr =
75 global_hba_head->open_handles;
76 open_handle_ptr != NULL;
77 open_handle_ptr = open_handle_ptr->next) {
78 if (open_handle_ptr->handle == handle) {
79 open_handle_prev_ptr->next =
80 open_handle_ptr->next;
81 free(open_handle_ptr);
82 found = 1;
83 break;
84 } else {
85 open_handle_prev_ptr =
86 open_handle_prev_ptr->next;
87 }
88 }
89 if (found == 0) {
90 log(LOG_DEBUG, ROUTINE,
91 "Attempted to close an invalid handle "
92 "%08lx. Unable to find handle to close.",
93 handle);
94 }
95 }
96 }
97
98 unlock(&open_handles_lock);
99 }
100