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/*-
* 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/scif_sas_io_request_state_handlers.c 231689 2012-02-14 15:58:49Z jimharris $");
/**
* @file
*
* @brief This file contains all of the method implementations pertaining
* to the framework io request state handler methods.
*/
#include <dev/isci/scil/scic_controller.h>
#include <dev/isci/scil/scif_sas_logger.h>
#include <dev/isci/scil/scif_sas_io_request.h>
#include <dev/isci/scil/scif_sas_remote_device.h>
#include <dev/isci/scil/scif_sas_domain.h>
#include <dev/isci/scil/scif_sas_controller.h>
//******************************************************************************
//* C O N S T R U C T E D H A N D L E R S
//******************************************************************************
/**
* @brief This method provides CONSTRUCTED state specific handling for
* when the user attempts to start the supplied IO request.
*
* @param[in] io_request This parameter specifies the IO request object
* to be started.
*
* @return This method returns a value indicating if the IO request was
* successfully started or not.
* @retval SCI_SUCCESS This return value indicates successful starting
* of the IO request.
*/
SCI_STATUS scif_sas_io_request_constructed_start_handler(
SCI_BASE_REQUEST_T * io_request
)
{
return SCI_SUCCESS;
}
/**
* @brief This method provides CONSTRUCTED state specific handling for
* when the user attempts to abort the supplied IO request.
*
* @param[in] io_request This parameter specifies the IO request object
* to be aborted.
*
* @return This method returns a value indicating if the IO request was
* successfully aborted or not.
* @retval SCI_SUCCESS This return value indicates successful aborting
* of the IO request.
*/
SCI_STATUS scif_sas_io_request_constructed_abort_handler(
SCI_BASE_REQUEST_T * io_request
)
{
sci_base_state_machine_change_state(
&io_request->state_machine, SCI_BASE_REQUEST_STATE_COMPLETED
);
return SCI_SUCCESS;
}
//******************************************************************************
//* S T A R T E D H A N D L E R S
//******************************************************************************
/**
* @brief This method provides STARTED state specific handling for
* when the user attempts to abort the supplied IO request.
*
* @param[in] io_request This parameter specifies the IO request object
* to be aborted.
*
* @return This method returns a value indicating if the aborting the
* IO request was successfully started.
* @retval SCI_SUCCESS This return value indicates that the abort process
* began successfully.
*/
static
SCI_STATUS scif_sas_io_request_started_abort_handler(
SCI_BASE_REQUEST_T * io_request
)
{
SCIF_SAS_REQUEST_T * fw_request = (SCIF_SAS_REQUEST_T *) io_request;
sci_base_state_machine_change_state(
&io_request->state_machine, SCI_BASE_REQUEST_STATE_ABORTING
);
return fw_request->status;
}
/**
* @brief This method provides STARTED state specific handling for
* when the user attempts to complete the supplied IO request.
*
* @param[in] io_request This parameter specifies the IO request object
* to be completed.
*
* @return This method returns a value indicating if the completion of the
* IO request was successful.
* @retval SCI_SUCCESS This return value indicates that the completion process
* was successful.
*/
static
SCI_STATUS scif_sas_io_request_started_complete_handler(
SCI_BASE_REQUEST_T * io_request
)
{
sci_base_state_machine_change_state(
&io_request->state_machine, SCI_BASE_REQUEST_STATE_COMPLETED
);
return SCI_SUCCESS;
}
//******************************************************************************
//* C O M P L E T E D H A N D L E R S
//******************************************************************************
/**
* @brief This method provides COMPLETED state specific handling for
* when the user attempts to destruct the supplied IO request.
*
* @param[in] io_request This parameter specifies the IO request object
* to be destructed.
*
* @return This method returns a value indicating if the destruct
* operation was successful.
* @retval SCI_SUCCESS This return value indicates that the destruct
* was successful.
*/
static
SCI_STATUS scif_sas_io_request_completed_destruct_handler(
SCI_BASE_REQUEST_T * io_request
)
{
sci_base_state_machine_change_state(
&io_request->state_machine, SCI_BASE_REQUEST_STATE_FINAL
);
sci_base_state_machine_logger_deinitialize(
&io_request->state_machine_logger,
&io_request->state_machine
);
return SCI_SUCCESS;
}
//******************************************************************************
//* A B O R T I N G H A N D L E R S
//******************************************************************************
/**
* @brief This method provides ABORTING state specific handlering for when the
* user attempts to abort the supplied IO request.
*
* @param[in] io_request This parameter specifies the IO request object
* to be completed.
*
* @return This method returns a value indicating if the completion
* operation was successful.
* @retval SCI_SUCCESS This return value indicates that the abort operation
* was successful.
*/
static
SCI_STATUS scif_sas_io_request_aborting_abort_handler(
SCI_BASE_REQUEST_T * io_request
)
{
SCIF_SAS_IO_REQUEST_T * fw_request = (SCIF_SAS_IO_REQUEST_T *) io_request;
return scic_controller_terminate_request(
fw_request->parent.device->domain->controller->core_object,
fw_request->parent.device->core_object,
fw_request->parent.core_object
);
}
/**
* @brief This method provides ABORTING state specific handling for
* when the user attempts to complete the supplied IO request.
*
* @param[in] io_request This parameter specifies the IO request object
* to be completed.
*
* @return This method returns a value indicating if the completion
* operation was successful.
* @retval SCI_SUCCESS This return value indicates that the completion
* was successful.
*/
static
SCI_STATUS scif_sas_io_request_aborting_complete_handler(
SCI_BASE_REQUEST_T * io_request
)
{
sci_base_state_machine_change_state(
&io_request->state_machine, SCI_BASE_REQUEST_STATE_COMPLETED
);
return SCI_SUCCESS;
}
//******************************************************************************
//* D E F A U L T H A N D L E R S
//******************************************************************************
/**
* @brief This method provides DEFAULT handling for when the user
* attempts to start the supplied IO request.
*
* @param[in] io_request This parameter specifies the IO request object
* to be started.
*
* @return This method returns an indication that the start operation is
* not allowed.
* @retval SCI_FAILURE_INVALID_STATE This value is always returned.
*/
static
SCI_STATUS scif_sas_io_request_default_start_handler(
SCI_BASE_REQUEST_T * io_request
)
{
SCIF_LOG_ERROR((
sci_base_object_get_logger((SCIF_SAS_IO_REQUEST_T *) io_request),
SCIF_LOG_OBJECT_IO_REQUEST,
"IoRequest:0x%x State:0x%x invalid state to start\n",
io_request,
sci_base_state_machine_get_state(
&((SCIF_SAS_IO_REQUEST_T *) io_request)->parent.parent.state_machine)
));
return SCI_FAILURE_INVALID_STATE;
}
/**
* @brief This method provides DEFAULT handling for when the user
* attempts to abort the supplied IO request.
*
* @param[in] io_request This parameter specifies the IO request object
* to be aborted.
*
* @return This method returns an indication that the abort operation is
* not allowed.
* @retval SCI_FAILURE_INVALID_STATE This value is always returned.
*/
static
SCI_STATUS scif_sas_io_request_default_abort_handler(
SCI_BASE_REQUEST_T * io_request
)
{
SCIF_LOG_ERROR((
sci_base_object_get_logger((SCIF_SAS_IO_REQUEST_T *) io_request),
SCIF_LOG_OBJECT_IO_REQUEST,
"IoRequest:0x%x State:0x%x invalid state to abort\n",
io_request,
sci_base_state_machine_get_state(
&((SCIF_SAS_IO_REQUEST_T *) io_request)->parent.parent.state_machine)
));
return SCI_FAILURE_INVALID_STATE;
}
/**
* @brief This method provides DEFAULT handling for when the user
* attempts to complete the supplied IO request.
*
* @param[in] io_request This parameter specifies the IO request object
* to be completed.
*
* @return This method returns an indication that complete operation is
* not allowed.
* @retval SCI_FAILURE_INVALID_STATE This value is always returned.
*/
SCI_STATUS scif_sas_io_request_default_complete_handler(
SCI_BASE_REQUEST_T * io_request
)
{
SCIF_LOG_ERROR((
sci_base_object_get_logger((SCIF_SAS_IO_REQUEST_T *) io_request),
SCIF_LOG_OBJECT_IO_REQUEST,
"IoRequest:0x%x State:0x%x invalid state to complete\n",
io_request,
sci_base_state_machine_get_state(
&((SCIF_SAS_IO_REQUEST_T *) io_request)->parent.parent.state_machine)
));
return SCI_FAILURE_INVALID_STATE;
}
/**
* @brief This method provides DEFAULT handling for when the user
* attempts to destruct the supplied IO request.
*
* @param[in] io_request This parameter specifies the IO request object
* to be destructed.
*
* @return This method returns an indication that destruct operation is
* not allowed.
* @retval SCI_FAILURE_INVALID_STATE This value is always returned.
*/
SCI_STATUS scif_sas_io_request_default_destruct_handler(
SCI_BASE_REQUEST_T * io_request
)
{
SCIF_LOG_ERROR((
sci_base_object_get_logger((SCIF_SAS_IO_REQUEST_T *) io_request),
SCIF_LOG_OBJECT_IO_REQUEST,
"IoRequest:0x%x State:0x%x invalid state to destruct.\n",
io_request,
sci_base_state_machine_get_state(
&((SCIF_SAS_IO_REQUEST_T *) io_request)->parent.parent.state_machine)
));
return SCI_FAILURE_INVALID_STATE;
}
SCI_BASE_REQUEST_STATE_HANDLER_T scif_sas_io_request_state_handler_table[] =
{
// SCI_BASE_REQUEST_STATE_INITIAL
{
scif_sas_io_request_default_start_handler,
scif_sas_io_request_default_abort_handler,
scif_sas_io_request_default_complete_handler,
scif_sas_io_request_default_destruct_handler
},
// SCI_BASE_REQUEST_STATE_CONSTRUCTED
{
scif_sas_io_request_constructed_start_handler,
scif_sas_io_request_constructed_abort_handler,
scif_sas_io_request_default_complete_handler,
scif_sas_io_request_default_destruct_handler
},
// SCI_BASE_REQUEST_STATE_STARTED
{
scif_sas_io_request_default_start_handler,
scif_sas_io_request_started_abort_handler,
scif_sas_io_request_started_complete_handler,
scif_sas_io_request_default_destruct_handler
},
// SCI_BASE_REQUEST_STATE_COMPLETED
{
scif_sas_io_request_default_start_handler,
scif_sas_io_request_default_abort_handler,
scif_sas_io_request_default_complete_handler,
scif_sas_io_request_completed_destruct_handler
},
// SCI_BASE_REQUEST_STATE_ABORTING
{
scif_sas_io_request_default_start_handler,
scif_sas_io_request_aborting_abort_handler,
scif_sas_io_request_aborting_complete_handler,
scif_sas_io_request_default_destruct_handler
},
// SCI_BASE_REQUEST_STATE_FINAL
{
scif_sas_io_request_default_start_handler,
scif_sas_io_request_default_abort_handler,
scif_sas_io_request_default_complete_handler,
scif_sas_io_request_default_destruct_handler
},
};