freebsd-dev/sys/dev/isci/scil/sci_controller.h
Pedro F. Giffuni 718cf2ccb9 sys/dev: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 14:52:40 +00:00

116 lines
4.4 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
*
* 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.
*
* $FreeBSD$
*/
#ifndef _SCI_CONTROLLER_H_
#define _SCI_CONTROLLER_H_
/**
* @file
*
* @brief This file contains all of the interface methods that can be called
* by an SCI user on all SCI controller objects.
*/
#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
#include <dev/isci/scil/sci_types.h>
#define SCI_CONTROLLER_INVALID_IO_TAG 0xFFFF
typedef enum _SCI_CONTROLLER_ERROR {
SCI_CONTROLLER_FATAL_ERROR = 1,
SCI_CONTROLLER_REMOTE_DEVICE_ERROR,
SCI_CONTROLLER_FATAL_MEMORY_ERROR
} SCI_CONTROLLER_ERROR;
/**
* @brief This method simply returns a handle for the memory descriptor
* list associated with the supplied controller. The descriptor list
* provides DMA safe/capable memory requirements for this controller.
*
* @warning The user must adhere to the alignment requirements specified in
* memory descriptor. In situations where the operating environment
* does not offer memory allocation utilities supporting alignment,
* then it is the responsibility of the user to manually align the
* memory buffer for SCI. Thus, the user may have to allocate a
* larger buffer to meet the alignment. Additionally, the user will
* need to remember the actual memory allocation addresses in order
* to ensure the memory can be properly freed when necessary to do
* so.
*
* @pre This method will return a valid handle, but the MDL may not be
* accurate until after the user has invoked the associated
* sci_controller_initialize() routine.
*
* @param[in] controller This parameter specifies the controller for which
* to retrieve the DMA safe memory descriptor list.
*
* @return A pointer to a physical memory descriptor array.
*/
SCI_MEMORY_DESCRIPTOR_LIST_HANDLE_T
sci_controller_get_memory_descriptor_list_handle(
SCI_CONTROLLER_HANDLE_T controller
);
#ifdef __cplusplus
}
#endif // __cplusplus
#endif // _SCI_CONTROLLER_H_