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| Current File : //sys/dev/isci/scil/scif_sas_library.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_library.c 231689 2012-02-14 15:58:49Z jimharris $");
/**
* @file
*
* @brief This file contains all of the method implementations for the
* SCIF_SAS_LIBRARY object.
*/
#include <dev/isci/scil/scic_library.h>
#include <dev/isci/scil/sci_pool.h>
#include <dev/isci/scil/scif_sas_library.h>
#include <dev/isci/scil/scif_sas_logger.h>
#include <dev/isci/scil/scif_sas_controller.h>
/**
* This macro simply calculates the size of the framework library. This
* includes the memory for each controller object.
*/
#define SCIF_LIBRARY_SIZE(max_controllers) \
( \
sizeof(SCIF_SAS_LIBRARY_T) + \
(sizeof(SCIF_SAS_CONTROLLER_T) * (max_controllers)) \
)
//******************************************************************************
//* P U B L I C M E T H O D S
//******************************************************************************
U32 scif_library_get_object_size(
U8 max_controller_count
)
{
return ( SCIF_LIBRARY_SIZE(max_controller_count) +
scic_library_get_object_size(max_controller_count) );
}
// ---------------------------------------------------------------------------
SCI_LIBRARY_HANDLE_T scif_library_construct(
void * library_memory,
U8 max_controller_count
)
{
SCI_STATUS status;
SCIF_SAS_LIBRARY_T * fw_library = (SCIF_SAS_LIBRARY_T *) library_memory;
// Just clear out the memory of the structure to be safe.
memset(fw_library, 0, scif_library_get_object_size(max_controller_count));
// Invoke the parent object constructor.
SCI_BASE_LIBRARY_CONSTRUCT(fw_library,
&fw_library->parent,
max_controller_count,
struct SCIF_SAS_CONTROLLER,
status);
// The memory for the framework controller objects start immediately
// after the library object.
fw_library->controllers = (SCIF_SAS_CONTROLLER_T*)
((U8*)library_memory + sizeof(SCIF_SAS_LIBRARY_T));
// Construct the core library.
fw_library->core_object = scic_library_construct(
(U8 *)library_memory +
SCIF_LIBRARY_SIZE(max_controller_count),
max_controller_count
);
// Ensure construction completed successfully for the core.
if (fw_library->core_object != SCI_INVALID_HANDLE)
{
// Set the association in the core library to this framework library.
sci_object_set_association(
(SCI_OBJECT_HANDLE_T) fw_library->core_object,
(void *) fw_library
);
return fw_library;
}
return SCI_INVALID_HANDLE;
}
// ---------------------------------------------------------------------------
SCI_STATUS scif_library_allocate_controller(
SCI_LIBRARY_HANDLE_T library,
SCI_CONTROLLER_HANDLE_T * new_controller
)
{
SCI_STATUS status;
// Ensure the user supplied a valid library handle.
if (library != SCI_INVALID_HANDLE)
{
SCIF_SAS_LIBRARY_T * fw_library = (SCIF_SAS_LIBRARY_T *) library;
// Allocate the framework library.
SCI_BASE_LIBRARY_ALLOCATE_CONTROLLER(fw_library, new_controller, &status);
if (status == SCI_SUCCESS)
{
SCIF_SAS_CONTROLLER_T * fw_controller;
// Allocate the core controller and save the handle in the framework
// controller object.
fw_controller = (SCIF_SAS_CONTROLLER_T*) *new_controller;
// Just clear out the memory of the structure to be safe.
memset(fw_controller, 0, sizeof(SCIF_SAS_CONTROLLER_T));
status = scic_library_allocate_controller(
fw_library->core_object, &(fw_controller->core_object)
);
// Free the framework controller if the core controller allocation
// failed.
if (status != SCI_SUCCESS)
scif_library_free_controller(library, fw_controller);
}
if (status != SCI_SUCCESS)
{
SCIF_LOG_WARNING((
sci_base_object_get_logger(fw_library),
SCIF_LOG_OBJECT_LIBRARY,
"Library:0x%x Status:0x%x controller allocation failed\n",
fw_library, status
));
}
}
else
status = SCI_FAILURE_INVALID_PARAMETER_VALUE;
return status;
}
// ---------------------------------------------------------------------------
SCI_STATUS scif_library_free_controller(
SCI_LIBRARY_HANDLE_T library,
SCI_CONTROLLER_HANDLE_T controller
)
{
SCI_STATUS status;
if ( (library != SCI_INVALID_HANDLE) && (controller != SCI_INVALID_HANDLE) )
{
SCI_STATUS core_status;
SCIF_SAS_LIBRARY_T * fw_library = (SCIF_SAS_LIBRARY_T*) library;
SCIF_SAS_CONTROLLER_T * fw_controller = (SCIF_SAS_CONTROLLER_T*) controller;
core_status = scic_library_free_controller(
fw_library->core_object, fw_controller->core_object
);
scif_sas_controller_destruct(fw_controller);
SCI_BASE_LIBRARY_FREE_CONTROLLER(
(SCIF_SAS_LIBRARY_T *) library,
controller,
SCIF_SAS_CONTROLLER_T,
&status
);
if ( (status == SCI_SUCCESS) && (core_status != SCI_SUCCESS) )
status = core_status;
if (status != SCI_SUCCESS)
{
SCIF_LOG_WARNING((
sci_base_object_get_logger(fw_library),
SCIF_LOG_OBJECT_LIBRARY,
"Library:0x%x Controller:0x%x Status:0x%x free controller failed\n",
fw_library, fw_controller, status
));
}
}
else
status = SCI_FAILURE_INVALID_PARAMETER_VALUE;
return status;
}
// ---------------------------------------------------------------------------
SCI_LIBRARY_HANDLE_T scif_library_get_scic_handle(
SCI_LIBRARY_HANDLE_T scif_library
)
{
SCIF_SAS_LIBRARY_T * fw_library = (SCIF_SAS_LIBRARY_T*) scif_library;
return fw_library->core_object;
}
// ---------------------------------------------------------------------------
#define SCIF_SAS_LIBRARY_MAX_TIMERS 32
U16 scif_library_get_max_timer_count(
void
)
{
/// @todo Need to calculate the exact maximum number of timers needed.
return SCIF_SAS_LIBRARY_MAX_TIMERS + scic_library_get_max_timer_count();
}
//******************************************************************************
//* P R O T E C T E D M E T H O D S
//******************************************************************************