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The isci driver is for the integrated SAS controller in the Intel C600 (Patsburg) chipset. Source files in sys/dev/isci directory are FreeBSD-specific, and sys/dev/isci/scil subdirectory contains an OS-agnostic library (SCIL) published by Intel to control the SAS controller. This library is used primarily as-is in this driver, with some post-processing to better integrate into the kernel build environment. isci.4 and a README in the sys/dev/isci directory contain a few additional details. This driver is only built for amd64 and i386 targets. Sponsored by: Intel Reviewed by: scottl Approved by: scottl
183 lines
5.5 KiB
C
183 lines
5.5 KiB
C
/*-
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.GPL.
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*
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* BSD LICENSE
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/**
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* @file
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*
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* @brief This file contains the implementation of an iterator class.
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* This class will allow for iterating across the elements of a
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* container.
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*/
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#if !defined(DISABLE_SCI_ITERATORS)
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//******************************************************************************
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//*
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//* I N C L U D E S
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//*
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//******************************************************************************
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#include <dev/isci/scil/sci_base_iterator.h>
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//******************************************************************************
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//*
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//* P R I V A T E M E M B E R S
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//*
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//******************************************************************************
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//******************************************************************************
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//*
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//* P R O T E C T E D M E T H O D S
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//*
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//******************************************************************************
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/**
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* @brief Return the size of an iterator object.
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*
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* @return U32 : size of iterator object in bytes.
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*
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*/
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U32 sci_iterator_get_object_size(
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void
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)
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{
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return sizeof(SCI_BASE_ITERATOR_T);
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}
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/**
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* @brief Initialize the interator.
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*
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* @param[in] iterator This parameter specifies the iterator to be
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* constructed.
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* @param[in] list This parameter specifies the abstract list that will be
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* iterated on by this iterator. The iterator will by initialized
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* to point to the first element in this abstract list.
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*
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* @return none
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*/
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void sci_base_iterator_construct(
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SCI_ITERATOR_HANDLE_T iterator_handle,
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SCI_ABSTRACT_LIST_T * list
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)
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{
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SCI_BASE_ITERATOR_T * iterator = (SCI_BASE_ITERATOR_T *) iterator_handle;
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memset(iterator, 0, sizeof(SCI_BASE_ITERATOR_T));
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iterator->list = list;
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sci_iterator_first(iterator);
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}
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/**
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* @brief Get the object currently pointed to by this iterator.
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*
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* @param[in] iterator_handle Handle to an iterator.
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*
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* @return void * : Object pointed to by this iterator.
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* @retval NULL If iterator is not currently pointing to a valid element.
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*/
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void * sci_iterator_get_current(
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SCI_ITERATOR_HANDLE_T iterator_handle
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)
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{
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SCI_BASE_ITERATOR_T * iterator = (SCI_BASE_ITERATOR_T *)iterator_handle;
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void *current_object = NULL;
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if (iterator->current != NULL)
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{
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current_object = sci_abstract_list_get_object(iterator->current);
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}
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return current_object;
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}
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/**
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* @brief Modify the iterator to point to the first element in the list.
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*
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* @param[in] iterator
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*
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* @return none
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*/
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void sci_iterator_first(
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SCI_ITERATOR_HANDLE_T iterator_handle
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)
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{
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SCI_BASE_ITERATOR_T * iterator = (SCI_BASE_ITERATOR_T *)iterator_handle;
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iterator->current = sci_abstract_list_get_front(iterator->list);
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}
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/**
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* @brief Modify the iterator to point to the next element in the list.
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*
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* @param[in] iterator
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*
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* @return none
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*/
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void sci_iterator_next(
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SCI_ITERATOR_HANDLE_T iterator_handle
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)
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{
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SCI_BASE_ITERATOR_T * iterator = (SCI_BASE_ITERATOR_T *)iterator_handle;
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if (iterator->current != NULL)
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{
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iterator->current = sci_abstract_list_get_next(iterator->current);
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}
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}
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#endif // !defined(DISABLE_SCI_ITERATORS)
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