freebsd-nq/sys/dev/isci/scil/scif_sas_task_request_states.c

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/*-
* SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
*
* 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("$FreeBSD$");
/**
* @file
*
* @brief This file contains all of the SCIF_SAS_TASK_REQUEST object
* state entrance and exit method implementations.
*/
#include <dev/isci/scil/scif_sas_task_request.h>
//******************************************************************************
//* P R O T E C T E D M E T H O D S
//******************************************************************************
/**
* @brief This method implements the actions taken when entering the
* INITIAL state.
*
* @param[in] object This parameter specifies the base object for which
* the state transition is occurring. This is cast into a
* SCIF_SAS_TASK_REQUEST object in the method implementation.
*
* @return none
*/
static
void scif_sas_task_request_initial_state_enter(
SCI_BASE_OBJECT_T *object
)
{
SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T *)object;
SET_STATE_HANDLER(
&fw_task->parent,
scif_sas_task_request_state_handler_table,
SCI_BASE_REQUEST_STATE_INITIAL
);
// Initial state is a transitional state to the constructed state
sci_base_state_machine_change_state(
&fw_task->parent.parent.state_machine, SCI_BASE_REQUEST_STATE_CONSTRUCTED
);
}
/**
* @brief This method implements the actions taken when entering the
* CONSTRUCTED state.
*
* @param[in] object This parameter specifies the base object for which
* the state transition is occurring. This is cast into a
* SCIF_SAS_TASK_REQUEST object in the method implementation.
*
* @return none
*/
static
void scif_sas_task_request_constructed_state_enter(
SCI_BASE_OBJECT_T *object
)
{
SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T *)object;
SET_STATE_HANDLER(
&fw_task->parent,
scif_sas_task_request_state_handler_table,
SCI_BASE_REQUEST_STATE_CONSTRUCTED
);
}
/**
* @brief This method implements the actions taken when entering the
* STARTED state.
*
* @param[in] object This parameter specifies the base object for which
* the state transition is occurring. This is cast into a
* SCIF_SAS_TASK_REQUEST object in the method implementation.
*
* @return none
*/
static
void scif_sas_task_request_started_state_enter(
SCI_BASE_OBJECT_T *object
)
{
SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T *)object;
SET_STATE_HANDLER(
&fw_task->parent,
scif_sas_task_request_state_handler_table,
SCI_BASE_REQUEST_STATE_STARTED
);
// Increment the affected request count to include the task performing
// the task management to ensure we don't complete the task request until
// all terminations and the task itself have completed.
fw_task->affected_request_count++;
}
/**
* @brief This method implements the actions taken when entering the
* COMPLETED state.
*
* @param[in] object This parameter specifies the base object for which
* the state transition is occurring. This is cast into a
* SCIF_SAS_TASK_REQUEST object in the method implementation.
*
* @return none
*/
static
void scif_sas_task_request_completed_state_enter(
SCI_BASE_OBJECT_T *object
)
{
SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T *)object;
SET_STATE_HANDLER(
&fw_task->parent,
scif_sas_task_request_state_handler_table,
SCI_BASE_REQUEST_STATE_COMPLETED
);
// Check to see if the task management operation is now finished (i.e.
// all of the task terminations and the task management request are
// complete).
scif_sas_task_request_operation_complete(fw_task);
}
/**
* @brief This method implements the actions taken when entering the
* ABORTING state.
*
* @param[in] object This parameter specifies the base object for which
* the state transition is occurring. This is cast into a
* SCIF_SAS_TASK_REQUEST object in the method implementation.
*
* @return none
*/
static
void scif_sas_task_request_aborting_state_enter(
SCI_BASE_OBJECT_T *object
)
{
SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T *)object;
SET_STATE_HANDLER(
&fw_task->parent,
scif_sas_task_request_state_handler_table,
SCI_BASE_REQUEST_STATE_ABORTING
);
/// @todo Is terminating a previously outstanding task request right?
fw_task->parent.status = scif_sas_request_terminate_start(
&fw_task->parent, fw_task->parent.core_object
);
}
/**
* @brief This method implements the actions taken when exiting the
* ABORTING state.
*
* @param[in] object This parameter specifies the base object for which
* the state transition is occurring. This is cast into a
* SCIF_SAS_TASK_REQUEST object in the method implementation.
*
* @return none
*/
static
void scif_sas_task_request_aborting_state_exit(
SCI_BASE_OBJECT_T *object
)
{
SCIF_SAS_REQUEST_T * fw_request = (SCIF_SAS_REQUEST_T *)object;
scif_sas_request_terminate_complete(fw_request);
}
/**
* @brief This method implements the actions taken when entering the
* FINAL state.
*
* @param[in] object This parameter specifies the base object for which
* the state transition is occurring. This is cast into a
* SCIF_SAS_TASK_REQUEST object in the method implementation.
*
* @return none
*/
static
void scif_sas_task_request_final_state_enter(
SCI_BASE_OBJECT_T *object
)
{
SCIF_SAS_TASK_REQUEST_T * fw_task = (SCIF_SAS_TASK_REQUEST_T *)object;
SET_STATE_HANDLER(
&fw_task->parent,
scif_sas_task_request_state_handler_table,
SCI_BASE_REQUEST_STATE_FINAL
);
}
SCI_BASE_STATE_T
scif_sas_task_request_state_table[SCI_BASE_REQUEST_MAX_STATES] =
{
{
SCI_BASE_REQUEST_STATE_INITIAL,
scif_sas_task_request_initial_state_enter,
NULL
},
{
SCI_BASE_REQUEST_STATE_CONSTRUCTED,
scif_sas_task_request_constructed_state_enter,
NULL
},
{
SCI_BASE_REQUEST_STATE_STARTED,
scif_sas_task_request_started_state_enter,
NULL
},
{
SCI_BASE_REQUEST_STATE_COMPLETED,
scif_sas_task_request_completed_state_enter,
NULL
},
{
SCI_BASE_REQUEST_STATE_ABORTING,
scif_sas_task_request_aborting_state_enter,
scif_sas_task_request_aborting_state_exit
},
{
SCI_BASE_REQUEST_STATE_FINAL,
scif_sas_task_request_final_state_enter,
NULL
},
};