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/*
* 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>
/*
* Frees the HBA Library. Must be called after all HBA library functions
* to free all resources
*/
HBA_STATUS Sun_sasFreeLibrary() {
HBA_STATUS status;
lock(&all_hbas_lock);
status = FreeHBA(global_hba_head);
/* re-initialize all global variables */
global_hba_head = NULL;
hba_count = 0;
open_handle_index = 1;
unlock(&all_hbas_lock);
(void) mutex_destroy(&all_hbas_lock);
/* free sysevent handle. */
if (gSysEventHandle != NULL)
sysevent_unbind_handle(gSysEventHandle);
/* Reset our load count so we can be reloaded now */
loadCount = 0;
return (status);
}
/*
* Internal routine to free up hba_ptr's (and all sub-structures)
*/
HBA_STATUS FreeHBA(struct sun_sas_hba *hba) {
struct sun_sas_hba *hba_ptr = NULL;
struct sun_sas_hba *last_hba_ptr = NULL;
struct sun_sas_port *hba_port = NULL;
struct sun_sas_port *last_hba_port = NULL;
struct sun_sas_port *tgt_port = NULL;
struct sun_sas_port *last_tgt_port = NULL;
struct ScsiEntryList *scsi_info = NULL;
struct ScsiEntryList *last_scsi_info = NULL;
struct phy_info *phy_ptr = NULL;
struct phy_info *last_phy = NULL;
struct open_handle *open_handle = NULL;
struct open_handle *last_open_handle = NULL;
last_hba_ptr = NULL;
/* walk through global_hba_head list freeing each handle */
for (hba_ptr = hba;
hba_ptr != NULL;
hba_ptr = hba_ptr->next) {
/* Free the nested structures (port and attached port) */
hba_port = hba_ptr->first_port;
while (hba_port != NULL) {
/* Free discovered port structure list. */
tgt_port = hba_port->first_attached_port;
while (tgt_port != NULL) {
/* Free target mapping data list first. */
scsi_info = tgt_port->scsiInfo;
while (scsi_info != NULL) {
last_scsi_info = scsi_info;
scsi_info = scsi_info->next;
free(last_scsi_info);
}
last_tgt_port = tgt_port;
tgt_port = tgt_port->next;
free(last_tgt_port->port_attributes.\
PortSpecificAttribute.SASPort);
free(last_tgt_port);
}
phy_ptr = hba_port->first_phy;
while (phy_ptr != NULL) {
last_phy = phy_ptr;
phy_ptr = phy_ptr->next;
free(last_phy);
}
last_hba_port = hba_port;
hba_port = hba_port->next;
free(last_hba_port->port_attributes.\
PortSpecificAttribute.SASPort);
free(last_hba_port);
}
open_handle = hba_ptr->open_handles;
while (open_handle != NULL) {
last_open_handle = open_handle;
open_handle = open_handle->next;
free(last_open_handle);
}
/* Free up the top level HBA structure from the last spin */
if (last_hba_ptr != NULL) {
free(last_hba_ptr);
}
last_hba_ptr = hba_ptr;
}
if (last_hba_ptr != NULL) {
free(last_hba_ptr);
}
return (HBA_STATUS_OK);
}
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