Sun_sasGetNumberOfAdapters.c revision 9e86db79b7d1bbc5f2f04e99954cbd5eae0e22bb
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <sun_sas.h>
/*
* Returns the number of HBAs supported by the library. This returns the
* current number of HBAs, even if this changes
*
*/
HBA_UINT32 Sun_sasGetNumberOfAdapters() {
int count;
struct sun_sas_hba *hba_ptr;
lock(&all_hbas_lock);
/* goes through hba list counting all the hbas found */
for (count = 0, hba_ptr = global_hba_head;
hba_ptr != NULL; hba_ptr = hba_ptr->next, count++) {}
unlock(&all_hbas_lock);
return (count);
}