/*
* linux/drivers/scsi/esas2r/esas2r_disc.c
* esas2r device discovery routines
*
* Copyright (c) 2001-2013 ATTO Technology, Inc.
* (mailto:linuxdrivers@attotech.com)
*/
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* NO WARRANTY
* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
* solely responsible for determining the appropriateness of using and
* distributing the Program and assumes all risks associated with its
* exercise of rights under this Agreement, including but not limited to
* the risks and costs of program errors, damage to or loss of data,
* programs or equipment, and unavailability or interruption of operations.
*
* DISCLAIMER OF LIABILITY
* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
#include "esas2r.h"
/* Miscellaneous internal discovery routines */
static void esas2r_disc_abort(struct esas2r_adapter *a,
struct esas2r_request *rq);
static bool esas2r_disc_continue(struct esas2r_adapter *a,
struct esas2r_request *rq);
static void esas2r_disc_fix_curr_requests(struct esas2r_adapter *a);
static u32 esas2r_disc_get_phys_addr(struct esas2r_sg_context *sgc, u64 *addr);
static bool esas2r_disc_start_request(struct esas2r_adapter *a,
struct esas2r_request *rq);
/* Internal discovery routines that process the states */
static bool esas2r_disc_block_dev_scan(struct esas2r_adapter *a,
struct esas2r_request *rq);
static void esas2r_disc_block_dev_scan_cb(struct esas2r_adapter *a,
struct esas2r_request *rq);
static bool esas2r_disc_dev_add(struct esas2r_adapter *a,
struct esas2r_request *rq);
static bool esas2r_disc_dev_remove(struct esas2r_adapter *a,
struct esas2r_request *rq);
static bool esas2r_disc_part_info(struct esas2r_adapter *a,
struct esas2r_request *rq);
static void esas2r_disc_part_info_cb(struct esas2r_adapter *a,
struct esas2r_request *rq);
static bool esas2r_disc_passthru_dev_info(struct esas2r_adapter *a,
struct esas2r_request *rq);
static void esas2r_disc_passthru_dev_info_cb(struct esas2r_adapter *a,
struct esas2r_request *rq);
static bool esas2r_disc_passthru_dev_addr(struct esas2r_adapter *a,
struct esas2r_request *rq);
static void esas2r_disc_passthru_dev_addr_cb(struct esas2r_adapter *a,
struct esas2r_request *rq);
static bool esas2r_disc_raid_grp_info(struct esas2r_adapter *a,
struct esas2r_request *rq);
static void esas2r_disc_raid_grp_info_cb(struct esas2r_adapter *a,
struct esas2r_request *rq);
void esas2r_disc_initialize(struct esas2r_adapter *a)
{
struct esas2r_sas_nvram *nvr = a->nvram;
esas2r_trace_enter();
esas2r_lock_clear_flags(&a->flags, AF_DISC_IN_PROG);
esas2r_lock_clear_flags(&a->flags2, AF2_DEV_SCAN);
esas2r_lock_clear_flags(&a->flags2, AF2_DEV_CNT_OK);
a->disc_start_time = jiffies_to_msecs(jiffies);
a->disc_wait_time = nvr->