b5739b6050
Signed-off-by: Edmund Nadolski <edmund.nadolski@intel.com> [rebased after killing SCI_IO_REQUEST_DATA_DIRECTION] Signed-off-by: Dan Williams <dan.j.williams@intel.com>
98 lines
4.2 KiB
C
98 lines
4.2 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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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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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#ifndef _SCI_CONTROLLER_H_
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#define _SCI_CONTROLLER_H_
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/**
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* This file contains all of the interface methods that can be called by an SCI
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* user on all SCI controller objects.
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*
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*
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*/
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struct sci_base_memory_descriptor_list;
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struct scic_sds_controller;
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#define SCI_CONTROLLER_INVALID_IO_TAG 0xFFFF
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/**
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* sci_controller_get_memory_descriptor_list_handle() - This method simply
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* returns a handle for the memory descriptor list associated with the
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* supplied controller. The descriptor list provides DMA safe/capable
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* memory requirements for this controller.
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* @controller: This parameter specifies the controller for which to retrieve
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* the DMA safe memory descriptor list.
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*
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* The user must adhere to the alignment requirements specified in memory
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* descriptor. In situations where the operating environment does not offer
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* memory allocation utilities supporting alignment, then it is the
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* responsibility of the user to manually align the memory buffer for SCI.
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* Thus, the user may have to allocate a larger buffer to meet the alignment.
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* Additionally, the user will need to remember the actual memory allocation
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* addresses in order to ensure the memory can be properly freed when necessary
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* to do so. This method will return a valid handle, but the MDL may not be
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* accurate until after the user has invoked the associated
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* sci_controller_initialize() routine. A pointer to a physical memory
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* descriptor array.
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*/
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struct sci_base_memory_descriptor_list *
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sci_controller_get_memory_descriptor_list_handle(
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struct scic_sds_controller *controller);
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#endif /* _SCI_CONTROLLER_H_ */
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