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 * Returns the number of HBAs supported by the library. This returns the
31 * current number of HBAs, even if this changes
32 *
33 */
Sun_sasGetNumberOfPorts(HBA_HANDLE handle,HBA_UINT32 * numberofports)34 HBA_UINT32 Sun_sasGetNumberOfPorts(
35 HBA_HANDLE handle, HBA_UINT32 *numberofports)
36 {
37 const char ROUTINE[] = "Sun_sasGetNumberOfPorts";
38 int count, index;
39 struct sun_sas_hba *hba_ptr;
40 struct sun_sas_port *hba_port_ptr;
41
42 if (numberofports == NULL) {
43 log(LOG_DEBUG, ROUTINE, "NULL numberofPorts pointer");
44 return (HBA_STATUS_ERROR_ARG);
45 }
46
47 lock(&all_hbas_lock);
48 index = RetrieveIndex(handle);
49 lock(&open_handles_lock);
50 hba_ptr = RetrieveHandle(index);
51 if (hba_ptr == NULL) {
52 log(LOG_DEBUG, ROUTINE, "Invalid handle %08lx.", handle);
53 /* on error, need to set NumberOfEntries to 0 */
54 unlock(&open_handles_lock);
55 unlock(&all_hbas_lock);
56 return (HBA_STATUS_ERROR_INVALID_HANDLE);
57 }
58 /* goes through hba list counting all the hbas found */
59 if (hba_ptr->first_port == NULL) {
60 log(LOG_DEBUG, ROUTINE, "No HBA Port found on handle %08lx.",
61 handle);
62 /* on error, need to set NumberOfPorts to 0 */
63 *numberofports = 0;
64 unlock(&open_handles_lock);
65 unlock(&all_hbas_lock);
66 return (HBA_STATUS_OK);
67 }
68
69 for (count = 0, hba_port_ptr = hba_ptr->first_port;
70 hba_port_ptr != NULL; hba_port_ptr = hba_port_ptr->next, count++) {}
71
72 *numberofports = count;
73
74 unlock(&open_handles_lock);
75 unlock(&all_hbas_lock);
76
77 return (HBA_STATUS_OK);
78
79 }
80