| Current Path : /sys/dev/isci/scil/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/dev/isci/scil/scic_sds_smp_remote_device.c |
/*-
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* 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., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* BSD LICENSE
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 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
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/isci/scil/scic_sds_smp_remote_device.c 231689 2012-02-14 15:58:49Z jimharris $");
/**
* @file
*
* @brief This file contains This file contains the SMP remote device
* object methods and it's state machines.
*/
#include <dev/isci/scil/scic_user_callback.h>
#include <dev/isci/scil/scic_sds_logger.h>
#include <dev/isci/scil/scic_sds_remote_device.h>
#include <dev/isci/scil/scic_sds_controller.h>
#include <dev/isci/scil/scic_sds_port.h>
#include <dev/isci/scil/scic_sds_request.h>
#include <dev/isci/scil/scu_event_codes.h>
#include <dev/isci/scil/scu_task_context.h>
#include <dev/isci/scil/scic_remote_device.h>
//*****************************************************************************
//* SMP REMOTE DEVICE READY IDLE SUBSTATE HANDLERS
//*****************************************************************************
/**
* This method will handle the start io operation for a SMP device that is in
* the idle state.
*
* @param [in] device The device the io is sent to.
* @param [in] request The io to start.
*
* @return SCI_STATUS
*/
static
SCI_STATUS scic_sds_smp_remote_device_ready_idle_substate_start_io_handler(
SCI_BASE_REMOTE_DEVICE_T * device,
SCI_BASE_REQUEST_T * request
)
{
SCI_STATUS status;
SCIC_SDS_REMOTE_DEVICE_T * this_device = (SCIC_SDS_REMOTE_DEVICE_T *)device;
SCIC_SDS_REQUEST_T * io_request = (SCIC_SDS_REQUEST_T *)request;
// Will the port allow the io request to start?
status = this_device->owning_port->state_handlers->start_io_handler(
this_device->owning_port,
this_device,
io_request
);
if (status == SCI_SUCCESS)
{
status =
scic_sds_remote_node_context_start_io(this_device->rnc, io_request);
if (status == SCI_SUCCESS)
{
status = scic_sds_request_start(io_request);
}
if (status == SCI_SUCCESS)
{
this_device->working_request = io_request;
sci_base_state_machine_change_state(
&this_device->ready_substate_machine,
SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD
);
}
scic_sds_remote_device_start_request(this_device, io_request, status);
}
return status;
}
//******************************************************************************
//* SMP REMOTE DEVICE READY SUBSTATE CMD HANDLERS
//******************************************************************************
/**
* This device is already handling a command it can not accept new commands
* until this one is complete.
*
* @param[in] device This is the device object that is receiving the IO.
*
* @param[in] request The io to start.
*
* @return SCI_STATUS
*/
static
SCI_STATUS scic_sds_smp_remote_device_ready_cmd_substate_start_io_handler(
SCI_BASE_REMOTE_DEVICE_T * device,
SCI_BASE_REQUEST_T * request
)
{
return SCI_FAILURE_INVALID_STATE;
}
/**
* @brief this is the complete_io_handler for smp device at ready cmd substate.
*
* @param[in] device This is the device object that is receiving the IO.
* @param[in] request The io to start.
*
* @return SCI_STATUS
*/
static
SCI_STATUS scic_sds_smp_remote_device_ready_cmd_substate_complete_io_handler(
SCI_BASE_REMOTE_DEVICE_T * device,
SCI_BASE_REQUEST_T * request
)
{
SCI_STATUS status;
SCIC_SDS_REMOTE_DEVICE_T * this_device;
SCIC_SDS_REQUEST_T * the_request;
this_device = (SCIC_SDS_REMOTE_DEVICE_T *)device;
the_request = (SCIC_SDS_REQUEST_T *)request;
status = scic_sds_io_request_complete(the_request);
if (status == SCI_SUCCESS)
{
status = scic_sds_port_complete_io(
this_device->owning_port, this_device, the_request);
if (status == SCI_SUCCESS)
{
scic_sds_remote_device_decrement_request_count(this_device);
sci_base_state_machine_change_state(
&this_device->ready_substate_machine,
SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE
);
}
else
{
SCIC_LOG_ERROR((
sci_base_object_get_logger(this_device),
SCIC_LOG_OBJECT_SMP_REMOTE_TARGET,
"SCIC SDS Remote Device 0x%x io request 0x%x could not be completd on the port 0x%x failed with status %d.\n",
this_device, the_request, this_device->owning_port, status
));
}
}
return status;
}
/**
* @brief This is frame handler for smp device ready cmd substate.
*
* @param[in] this_device This is the device object that is receiving the frame.
* @param[in] frame_index The index for the frame received.
*
* @return SCI_STATUS
*/
static
SCI_STATUS scic_sds_smp_remote_device_ready_cmd_substate_frame_handler(
SCIC_SDS_REMOTE_DEVICE_T * this_device,
U32 frame_index
)
{
SCI_STATUS status;
/// The device does not process any UF received from the hardware while
/// in this state. All unsolicited frames are forwarded to the io request
/// object.
status = scic_sds_io_request_frame_handler(
this_device->working_request,
frame_index
);
return status;
}
// ---------------------------------------------------------------------------
SCIC_SDS_REMOTE_DEVICE_STATE_HANDLER_T
scic_sds_smp_remote_device_ready_substate_handler_table[
SCIC_SDS_SMP_REMOTE_DEVICE_READY_MAX_SUBSTATES] =
{
// SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE
{
{
scic_sds_remote_device_default_start_handler,
scic_sds_remote_device_ready_state_stop_handler,
scic_sds_remote_device_default_fail_handler,
scic_sds_remote_device_default_destruct_handler,
scic_sds_remote_device_default_reset_handler,
scic_sds_remote_device_default_reset_complete_handler,
scic_sds_smp_remote_device_ready_idle_substate_start_io_handler,
scic_sds_remote_device_default_complete_request_handler,
scic_sds_remote_device_default_continue_request_handler,
scic_sds_remote_device_default_start_request_handler,
scic_sds_remote_device_default_complete_request_handler
},
scic_sds_remote_device_default_suspend_handler,
scic_sds_remote_device_default_resume_handler,
scic_sds_remote_device_general_event_handler,
scic_sds_remote_device_default_frame_handler
},
// SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD
{
{
scic_sds_remote_device_default_start_handler,
scic_sds_remote_device_ready_state_stop_handler,
scic_sds_remote_device_default_fail_handler,
scic_sds_remote_device_default_destruct_handler,
scic_sds_remote_device_default_reset_handler,
scic_sds_remote_device_default_reset_complete_handler,
scic_sds_smp_remote_device_ready_cmd_substate_start_io_handler,
scic_sds_smp_remote_device_ready_cmd_substate_complete_io_handler,
scic_sds_remote_device_default_continue_request_handler,
scic_sds_remote_device_default_start_request_handler,
scic_sds_remote_device_default_complete_request_handler
},
scic_sds_remote_device_default_suspend_handler,
scic_sds_remote_device_default_resume_handler,
scic_sds_remote_device_general_event_handler,
scic_sds_smp_remote_device_ready_cmd_substate_frame_handler
}
};
/**
* This is the SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE enter method. This
* method sets the ready cmd substate handlers and reports the device as ready.
*
* @param[in] object This is the SCI_BASE_OBJECT which is cast into a
* SCIC_SDS_REMOTE_DEVICE.
*
* @return none
*/
static
void scic_sds_smp_remote_device_ready_idle_substate_enter(
SCI_BASE_OBJECT_T *object
)
{
SCIC_SDS_REMOTE_DEVICE_T *this_device = (SCIC_SDS_REMOTE_DEVICE_T *)object;
SET_STATE_HANDLER(
this_device,
scic_sds_smp_remote_device_ready_substate_handler_table,
SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE
);
scic_cb_remote_device_ready(
scic_sds_remote_device_get_controller(this_device), this_device);
}
/**
* This is the SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD enter method. This
* method sets the remote device objects ready cmd substate handlers, and notify
* core user that the device is not ready.
*
* @param[in] object This is the SCI_BASE_OBJECT which is cast into a
* SCIC_SDS_REMOTE_DEVICE.
*
* @return none
*/
static
void scic_sds_smp_remote_device_ready_cmd_substate_enter(
SCI_BASE_OBJECT_T *object
)
{
SCIC_SDS_REMOTE_DEVICE_T *this_device = (SCIC_SDS_REMOTE_DEVICE_T *)object;
ASSERT(this_device->working_request != NULL);
SET_STATE_HANDLER(
this_device,
scic_sds_smp_remote_device_ready_substate_handler_table,
SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD
);
scic_cb_remote_device_not_ready(
scic_sds_remote_device_get_controller(this_device),
this_device,
SCIC_REMOTE_DEVICE_NOT_READY_SMP_REQUEST_STARTED
);
}
/**
* This is the SCIC_SDS_SSP_REMOTE_DEVICE_READY_SUBSTATE_CMD exit method.
*
* @param[in] object This is the SCI_BASE_OBJECT which is cast into a
* SCIC_SDS_REMOTE_DEVICE.
*
* @return none
*/
static
void scic_sds_smp_remote_device_ready_cmd_substate_exit(
SCI_BASE_OBJECT_T *object
)
{
SCIC_SDS_REMOTE_DEVICE_T * this_device = (SCIC_SDS_REMOTE_DEVICE_T *)object;
this_device->working_request = NULL;
}
// ---------------------------------------------------------------------------
SCI_BASE_STATE_T
scic_sds_smp_remote_device_ready_substate_table[
SCIC_SDS_SMP_REMOTE_DEVICE_READY_MAX_SUBSTATES] =
{
{
SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_IDLE,
scic_sds_smp_remote_device_ready_idle_substate_enter,
NULL
},
{
SCIC_SDS_SMP_REMOTE_DEVICE_READY_SUBSTATE_CMD,
scic_sds_smp_remote_device_ready_cmd_substate_enter,
scic_sds_smp_remote_device_ready_cmd_substate_exit
}
};