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| Current File : //usr/src/sys/dev/isci/scil/scif_sas_io_request.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/scif_sas_io_request.c 231689 2012-02-14 15:58:49Z jimharris $");
/**
* @file
*
* @brief This file contains the implementation of the SCIF_SAS_IO_REQUEST
* object.
*/
#include <dev/isci/scil/scic_io_request.h>
#include <dev/isci/scil/scic_remote_device.h>
#include <dev/isci/scil/scic_user_callback.h>
#include <dev/isci/scil/scic_controller.h>
#include <dev/isci/scil/scif_user_callback.h>
#include <dev/isci/scil/scif_sas_controller.h>
#include <dev/isci/scil/scif_sas_domain.h>
#include <dev/isci/scil/scif_sas_remote_device.h>
#include <dev/isci/scil/scif_sas_io_request.h>
#include <dev/isci/scil/scif_sas_task_request.h>
#include <dev/isci/scil/scif_sas_stp_io_request.h>
#include <dev/isci/scil/scif_sas_logger.h>
#include <dev/isci/scil/scif_sas_smp_io_request.h>
#include <dev/isci/scil/sci_fast_list.h>
#include <dev/isci/scil/sati.h>
#include <dev/isci/scil/intel_sat.h>
#include <dev/isci/scil/sati_translator_sequence.h>
/**
* @brief This method represents common functionality for the
* scif_io_request_construct() and scif_sas_io_request_continue()
* methods.
*
* @return This method returns an indication as to whether the
* construction succeeded.
*/
static
SCI_STATUS scif_sas_io_request_construct(
SCIF_SAS_REMOTE_DEVICE_T * fw_device,
SCIF_SAS_IO_REQUEST_T * fw_io,
U16 io_tag,
void * user_io_request_object,
SCI_IO_REQUEST_HANDLE_T * scif_io_request,
BOOL is_initial_construction
)
{
SCI_STATUS status;
SMP_DISCOVER_RESPONSE_PROTOCOLS_T dev_protocols;
scic_remote_device_get_protocols(fw_device->core_object, &dev_protocols);
//Currently, all the io requests sent to smp target are internal.
//so we fail all the external io toward to it.
//Todo: is there a better way to handle external io to smp target?
if (dev_protocols.u.bits.attached_smp_target)
return SCI_FAILURE_INVALID_REMOTE_DEVICE;
SCIF_LOG_TRACE((
sci_base_object_get_logger(fw_device),
SCIF_LOG_OBJECT_IO_REQUEST,
"scif_sas_io_request_construct(0x%x,0x%x,0x%x,0x%x,0x%x,0x%x) enter\n",
fw_device, fw_io, io_tag, user_io_request_object, scif_io_request,
is_initial_construction
));
// Initialize the users handle to the framework IO request.
*scif_io_request = fw_io;
// Construct the parent object first in order to ensure logging can
// function.
scif_sas_request_construct(
&fw_io->parent,
fw_device,
sci_base_object_get_logger(fw_device),
scif_sas_io_request_state_table
);
status = scic_io_request_construct(
fw_device->domain->controller->core_object,
fw_device->core_object,
io_tag,
fw_io,
((U8 *)fw_io) + sizeof(SCIF_SAS_IO_REQUEST_T),
&fw_io->parent.core_object
);
if (status == SCI_SUCCESS)
{
// These associations must be set early for the core io request
// object construction to complete correctly as there will be
// callbacks into the user driver framework during core construction
sci_object_set_association(fw_io, user_io_request_object);
sci_object_set_association(fw_io->parent.core_object, fw_io);
// Perform protocol specific core IO request construction.
if (dev_protocols.u.bits.attached_ssp_target)
status = scic_io_request_construct_basic_ssp(fw_io->parent.core_object);
else if (dev_protocols.u.bits.attached_stp_target)
{
if (is_initial_construction == TRUE)
sati_sequence_construct(&fw_io->parent.stp.sequence);
#if !defined(DISABLE_ATAPI)
if (!scic_remote_device_is_atapi(fw_device->core_object))
{
#endif
status = scif_sas_stp_io_request_construct(fw_io);
#if !defined(DISABLE_ATAPI)
}
else
status = scif_sas_stp_packet_io_request_construct(fw_io);
#endif
}
sci_base_state_machine_logger_initialize(
&fw_io->parent.parent.state_machine_logger,
&fw_io->parent.parent.state_machine,
&fw_io->parent.parent.parent,
scif_cb_logger_log_states,
"SCIF_IO_REQUEST_T", "base_state_machine",
SCIF_LOG_OBJECT_IO_REQUEST
);
}
return status;
}
//******************************************************************************
//* P U B L I C M E T H O D S
//******************************************************************************
U32 scif_io_request_get_object_size(
void
)
{
return (sizeof(SCIF_SAS_IO_REQUEST_T) + scic_io_request_get_object_size());
}
// ----------------------------------------------------------------------------
U32 scif_io_request_get_number_of_bytes_transferred(
SCI_IO_REQUEST_HANDLE_T scif_io_request
)
{
SCIF_SAS_IO_REQUEST_T * fw_request = (SCIF_SAS_IO_REQUEST_T*) scif_io_request;
if(scic_io_request_get_protocol(scif_io_request_get_scic_handle(scif_io_request))
== SCIC_STP_PROTOCOL)
{
U16 sati_data_bytes_set =
sati_get_number_data_bytes_set(&(fw_request->parent.stp.sequence));
if (sati_data_bytes_set != 0)
return sati_data_bytes_set;
else
{
#if !defined(DISABLE_ATAPI)
U8 sat_protocol = fw_request->parent.stp.sequence.protocol;
if ( sat_protocol & SAT_PROTOCOL_PACKET)
return
scif_sas_stp_packet_io_request_get_number_of_bytes_transferred(fw_request);
else
#endif
return scic_io_request_get_number_of_bytes_transferred(
scif_io_request_get_scic_handle(scif_io_request));
}
}
else
{
return scic_io_request_get_number_of_bytes_transferred(
scif_io_request_get_scic_handle(scif_io_request));
}
}
// ---------------------------------------------------------------------------
SCI_STATUS scif_io_request_construct(
SCI_CONTROLLER_HANDLE_T scif_controller,
SCI_REMOTE_DEVICE_HANDLE_T scif_remote_device,
U16 io_tag,
void * user_io_request_object,
void * io_request_memory,
SCI_IO_REQUEST_HANDLE_T * scif_io_request
)
{
SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T*)
io_request_memory;
SCIF_SAS_REMOTE_DEVICE_T * fw_device = (SCIF_SAS_REMOTE_DEVICE_T*)
scif_remote_device;
return scif_sas_io_request_construct(
fw_device,
fw_io,
io_tag,
user_io_request_object,
scif_io_request,
TRUE
);
}
// ---------------------------------------------------------------------------
SCI_STATUS scif_request_construct(
SCI_CONTROLLER_HANDLE_T scif_controller,
SCI_REMOTE_DEVICE_HANDLE_T scif_remote_device,
U16 io_tag,
void * user_io_request_object,
void * io_request_memory,
SCI_IO_REQUEST_HANDLE_T * scif_io_request
)
{
SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T*)
io_request_memory;
SCIF_SAS_REMOTE_DEVICE_T * fw_device = (SCIF_SAS_REMOTE_DEVICE_T*)
scif_remote_device;
SCI_STATUS status;
SCIF_LOG_TRACE((
sci_base_object_get_logger(fw_device),
SCIF_LOG_OBJECT_IO_REQUEST,
"scif_io_request_construct(0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x) enter\n",
scif_controller, scif_remote_device, io_tag, user_io_request_object,
io_request_memory, scif_io_request
));
// Step 1: Create the scif io request.
// Initialize the users handle to the framework IO request.
*scif_io_request = fw_io;
// Construct the parent object first in order to ensure logging can
// function.
scif_sas_request_construct(
&fw_io->parent,
fw_device,
sci_base_object_get_logger(fw_device),
scif_sas_io_request_state_table
);
status = scic_io_request_construct(
(void *) ((SCIF_SAS_CONTROLLER_T *)scif_controller)->core_object,
(void *) fw_device->core_object,
io_tag,
fw_io,
(U8 *)io_request_memory + sizeof(SCIF_SAS_IO_REQUEST_T),
&fw_io->parent.core_object
);
if (status == SCI_SUCCESS)
{
// These associations must be set early for the core io request
// object construction to complete correctly as there will be
// callbacks into the user driver framework during core construction
sci_object_set_association(fw_io, user_io_request_object);
sci_object_set_association(fw_io->parent.core_object, fw_io);
sci_base_state_machine_logger_initialize(
&fw_io->parent.parent.state_machine_logger,
&fw_io->parent.parent.state_machine,
&fw_io->parent.parent.parent,
scif_cb_logger_log_states,
"SCIF_IO_REQUEST_T", "base_state_machine",
SCIF_LOG_OBJECT_IO_REQUEST
);
}
return status;
}
// ----------------------------------------------------------------------------
SCI_STATUS scif_io_request_construct_with_core (
SCI_CONTROLLER_HANDLE_T scif_controller,
SCI_REMOTE_DEVICE_HANDLE_T scif_remote_device,
void * scic_io_request,
void * user_io_request_object,
void * io_request_memory,
SCI_IO_REQUEST_HANDLE_T * scif_io_request
)
{
SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T*)
io_request_memory;
SCIF_SAS_REMOTE_DEVICE_T * fw_device = (SCIF_SAS_REMOTE_DEVICE_T*)
scif_remote_device;
SCI_STATUS status = SCI_SUCCESS;
SCIF_LOG_TRACE((
sci_base_object_get_logger(fw_device),
SCIF_LOG_OBJECT_IO_REQUEST,
"scif_io_request_construct_pass_through(0x%x, 0x%x, 0x%x, 0x%x) enter\n",
scif_remote_device, user_io_request_object,
io_request_memory, scif_io_request
));
// Initialize the users handle to the framework IO request.
*scif_io_request = fw_io;
// Construct the parent object first in order to ensure logging can
// function.
scif_sas_request_construct(
&fw_io->parent,
fw_device,
sci_base_object_get_logger(fw_device),
scif_sas_io_request_state_table
);
fw_io->parent.core_object = scic_io_request;
//set association
sci_object_set_association(fw_io, user_io_request_object);
sci_object_set_association(fw_io->parent.core_object, fw_io);
sci_base_state_machine_logger_initialize(
&fw_io->parent.parent.state_machine_logger,
&fw_io->parent.parent.state_machine,
&fw_io->parent.parent.parent,
scif_cb_logger_log_states,
"SCIF_IO_REQUEST_T", "base_state_machine",
SCIF_LOG_OBJECT_IO_REQUEST
);
return status;
}
// ---------------------------------------------------------------------------
void * scif_io_request_get_response_iu_address(
SCI_IO_REQUEST_HANDLE_T scif_io_request
)
{
SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T*)scif_io_request;
return (scic_io_request_get_response_iu_address(fw_io->parent.core_object ));
}
// ---------------------------------------------------------------------------
SCI_IO_REQUEST_HANDLE_T scif_io_request_get_scic_handle(
SCI_IO_REQUEST_HANDLE_T scif_io_request
)
{
SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T*) scif_io_request;
return fw_io->parent.core_object;
}
// ---------------------------------------------------------------------------
void scic_cb_io_request_complete(
SCI_CONTROLLER_HANDLE_T controller,
SCI_REMOTE_DEVICE_HANDLE_T remote_device,
SCI_IO_REQUEST_HANDLE_T io_request,
SCI_IO_STATUS completion_status
)
{
SCI_STATUS status;
SCIF_SAS_CONTROLLER_T * fw_controller = (SCIF_SAS_CONTROLLER_T*)
sci_object_get_association(controller);
SCIF_SAS_REMOTE_DEVICE_T * fw_device = (SCIF_SAS_REMOTE_DEVICE_T*)
sci_object_get_association(remote_device);
SCIF_SAS_REQUEST_T * fw_request = (SCIF_SAS_REQUEST_T*)
sci_object_get_association(io_request);
SCIF_LOG_TRACE((
sci_base_object_get_logger(controller),
SCIF_LOG_OBJECT_IO_REQUEST,
"scic_cb_io_request_complete(0x%x, 0x%x, 0x%x, 0x%x) enter\n",
controller, remote_device, io_request, completion_status
));
// Invoke the common completion handler routine.
// A non-successful return indicates we are not in a correct state to
// receive a completion notification for this request.
status = fw_request->state_handlers->complete_handler(&fw_request->parent);
// If the status indicates the completion handler was successful, then
// allow protocol specific completion processing to occur.
if (status == SCI_SUCCESS)
{
if (fw_request->protocol_complete_handler != NULL)
{
status = fw_request->protocol_complete_handler(
fw_controller, fw_device, fw_request, (SCI_STATUS *)&completion_status
);
}
// If this isn't an internal framework IO request, then simply pass the
// notification up to the SCIF user.
if ( status == SCI_SUCCESS )
{
if (fw_request->is_high_priority == FALSE)
{
if (fw_request->is_waiting_for_abort_task_set == FALSE)
{
scif_cb_io_request_complete(
fw_controller, fw_device, fw_request, completion_status);
}
else
{
// do nothing - will complete the I/O when the abort task
// set completes
}
}
else
scif_sas_controller_complete_high_priority_io(
fw_controller, fw_device, fw_request);
}
else if ( status == SCI_WARNING_SEQUENCE_INCOMPLETE )
{
scif_sas_io_request_continue(fw_controller, fw_device, fw_request);
}
}
}
// ---------------------------------------------------------------------------
U32 scic_cb_io_request_get_transfer_length(
void * scic_user_io_request
)
{
SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T*)
scic_user_io_request;
return (scif_cb_io_request_get_transfer_length(
fw_io->parent.parent.parent.associated_object
));
}
// ---------------------------------------------------------------------------
SCI_IO_REQUEST_DATA_DIRECTION scic_cb_io_request_get_data_direction(
void * scic_user_io_request
)
{
SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T*)
scic_user_io_request;
return (scif_cb_io_request_get_data_direction(
fw_io->parent.parent.parent.associated_object
));
}
// ---------------------------------------------------------------------------
#ifndef SCI_SGL_OPTIMIZATION_ENABLED
void scic_cb_io_request_get_next_sge(
void * scic_user_io_request,
void * current_sge_address,
void **next_sge
)
{
SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T*)
scic_user_io_request;
scif_cb_io_request_get_next_sge(
fw_io->parent.parent.parent.associated_object,
current_sge_address,
next_sge
);
}
#endif
// ---------------------------------------------------------------------------
SCI_PHYSICAL_ADDRESS scic_cb_sge_get_address_field(
void * scic_user_io_request,
void * sge_address
)
{
SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T*)
scic_user_io_request;
return scif_cb_sge_get_address_field(
fw_io->parent.parent.parent.associated_object, sge_address
);
}
// ---------------------------------------------------------------------------
U32 scic_cb_sge_get_length_field(
void * scic_user_io_request,
void * sge_address
)
{
SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T*)
scic_user_io_request;
return scif_cb_sge_get_length_field(
fw_io->parent.parent.parent.associated_object,
sge_address
);
}
// ---------------------------------------------------------------------------
void * scic_cb_ssp_io_request_get_cdb_address(
void * scic_user_io_request
)
{
SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T*)
scic_user_io_request;
return scif_cb_io_request_get_cdb_address(
fw_io->parent.parent.parent.associated_object
);
}
// ---------------------------------------------------------------------------
U32 scic_cb_ssp_io_request_get_cdb_length(
void * scic_user_io_request
)
{
SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T*)
scic_user_io_request;
return scif_cb_io_request_get_cdb_length(
fw_io->parent.parent.parent.associated_object
);
}
// ---------------------------------------------------------------------------
#if !defined(DISABLE_ATAPI)
void * scic_cb_stp_packet_io_request_get_cdb_address(
void * scic_user_io_request
)
{
SCIF_SAS_REQUEST_T * fw_request = (SCIF_SAS_REQUEST_T*)scic_user_io_request;
SATI_TRANSLATOR_SEQUENCE_T * sati_sequence = &fw_request->stp.sequence;
if (sati_sequence->state != SATI_SEQUENCE_STATE_INCOMPLETE)
return scif_cb_io_request_get_cdb_address(
fw_request->parent.parent.associated_object
);
else
return
&(sati_sequence->command_specific_data.sati_atapi_data.request_sense_cdb);
}
#endif
// ---------------------------------------------------------------------------
#if !defined(DISABLE_ATAPI)
U32 scic_cb_stp_packet_io_request_get_cdb_length(
void * scic_user_io_request
)
{
SCIF_SAS_REQUEST_T * fw_request = (SCIF_SAS_REQUEST_T*)
scic_user_io_request;
SATI_TRANSLATOR_SEQUENCE_T * sati_sequence = &fw_request->stp.sequence;
if (sati_sequence->state != SATI_SEQUENCE_STATE_INCOMPLETE)
return scif_cb_io_request_get_cdb_length(
fw_request->parent.parent.associated_object
);
else
return SATI_ATAPI_REQUEST_SENSE_CDB_LENGTH;
}
#endif
// ---------------------------------------------------------------------------
U32 scic_cb_ssp_io_request_get_lun(
void * scic_user_io_request
)
{
SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T*)
scic_user_io_request;
return scif_cb_io_request_get_lun(
fw_io->parent.parent.parent.associated_object
);
}
// ---------------------------------------------------------------------------
U32 scic_cb_ssp_io_request_get_task_attribute(
void * scic_user_io_request
)
{
SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T*)
scic_user_io_request;
return scif_cb_io_request_get_task_attribute(
fw_io->parent.parent.parent.associated_object
);
}
// ---------------------------------------------------------------------------
U32 scic_cb_ssp_io_request_get_command_priority(
void * scic_user_io_request
)
{
SCIF_SAS_IO_REQUEST_T * fw_io = (SCIF_SAS_IO_REQUEST_T*)
scic_user_io_request;
return scif_cb_io_request_get_command_priority(
fw_io->parent.parent.parent.associated_object
);
}
// ---------------------------------------------------------------------------
BOOL scic_cb_request_is_initial_construction(
void * scic_user_io_request
)
{
SCIF_SAS_REQUEST_T * fw_request = (SCIF_SAS_REQUEST_T*)
scic_user_io_request;
SCIF_SAS_REMOTE_DEVICE_T* fw_device = fw_request->device;
SMP_DISCOVER_RESPONSE_PROTOCOLS_T dev_protocols;
scic_remote_device_get_protocols(fw_device->core_object, &dev_protocols);
if (dev_protocols.u.bits.attached_stp_target
&& fw_request->stp.sequence.state == SATI_SEQUENCE_STATE_INCOMPLETE)
return FALSE;
return TRUE;
}
//******************************************************************************
//* P R O T E C T E D M E T H O D S
//******************************************************************************
/**
* @brief This method constructs an scif sas smp request.
*
* @param[in] fw_controller The framework controller
* @param[in] fw_device The smp device that the smp request targets to.
* @param[in] fw_io_memory The memory space for the smp request.
* @param[in] core_io_memory The memory space for the core request.
* @param[in] io_tag The io tag for the internl io to be constructed.
* @param[in] smp_command A pointer to the smp request data structure according
* to SAS protocol.
*
* @return Indicate if the internal io was successfully constructed.
* @retval SCI_SUCCESS This value is returned if the internal io was
* successfully constructed.
* @retval SCI_FAILURE This value is returned if the internal io was failed to
* be constructed.
*/
SCI_STATUS scif_sas_io_request_construct_smp(
SCIF_SAS_CONTROLLER_T * fw_controller,
SCIF_SAS_REMOTE_DEVICE_T * fw_device,
void * fw_io_memory,
void * core_io_memory,
U16 io_tag,
SMP_REQUEST_T * smp_command,
void * user_request_object
)
{
SCIF_SAS_IO_REQUEST_T * fw_io =
(SCIF_SAS_IO_REQUEST_T*)fw_io_memory;
SCI_STATUS status = SCI_SUCCESS;
SCIF_LOG_TRACE((
sci_base_object_get_logger(fw_device),
SCIF_LOG_OBJECT_IO_REQUEST,
"scif_sas_io_request_construct_smp(0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x) enter\n",
fw_controller,
fw_device,
fw_io_memory,
core_io_memory,
io_tag,
smp_command,
user_request_object
));
// Construct the parent object first in order to ensure logging can
// function.
scif_sas_request_construct(
&fw_io->parent,
fw_device,
sci_base_object_get_logger(fw_controller),
scif_sas_io_request_state_table
);
status = scic_io_request_construct(
fw_device->domain->controller->core_object,
fw_device->core_object,
io_tag,
(void*)fw_io,
(U8 *)core_io_memory,
&fw_io->parent.core_object
);
if (status == SCI_SUCCESS)
{
//set object association.
sci_object_set_association(fw_io, user_request_object);
sci_object_set_association(fw_io->parent.core_object, fw_io);
scif_sas_smp_request_construct(&fw_io->parent, smp_command);
fw_io->parent.is_high_priority = TRUE;
sci_base_state_machine_logger_initialize(
&fw_io->parent.parent.state_machine_logger,
&fw_io->parent.parent.state_machine,
&fw_io->parent.parent.parent,
scif_cb_logger_log_states,
"SCIF_IO_REQUEST_T", "base_state_machine",
SCIF_LOG_OBJECT_IO_REQUEST
);
}
return status;
}
/**
* @brief This method continues a scif sas request.
*
* @param[in] fw_controller The framework controller
* @param[in] fw_device The device that the IO request targets to.
* @param[in] fw_request The IO request to be continued.
*
* @return Indicate if the internal io was successfully constructed.
* @retval SCI_SUCCESS This value is returned if the internal io was
* successfully continued.
* @retval SCI_FAILURE This value is returned if the io was failed to
* be continued.
*/
SCI_STATUS scif_sas_io_request_continue(
SCIF_SAS_CONTROLLER_T * fw_controller,
SCIF_SAS_REMOTE_DEVICE_T * fw_device,
SCIF_SAS_REQUEST_T * fw_request
)
{
SCI_IO_REQUEST_HANDLE_T dummy_handle;
SCIF_LOG_TRACE((
sci_base_object_get_logger(fw_request),
SCIF_LOG_OBJECT_IO_REQUEST,
"scif_sas_io_request_continue(0x%x, 0x%x, 0x%x) enter\n",
fw_controller,
fw_device,
fw_request
));
//complete this io request in framework and core.
scif_controller_complete_io(fw_controller, fw_device, fw_request);
//construct next command in the sequence using the same memory. We pass
//a dummy pointer to let the framework user keep the pointer to this IO
//request untouched.
scif_sas_io_request_construct(
fw_device,
(SCIF_SAS_IO_REQUEST_T*)fw_request,
SCI_CONTROLLER_INVALID_IO_TAG,
(void *)sci_object_get_association(fw_request),
&dummy_handle,
FALSE
);
//start the new constructed IO.
return (SCI_STATUS)scif_controller_start_io(
(SCI_CONTROLLER_HANDLE_T) fw_controller,
(SCI_REMOTE_DEVICE_HANDLE_T) fw_device,
(SCI_IO_REQUEST_HANDLE_T) fw_request,
SCI_CONTROLLER_INVALID_IO_TAG
);
}