f11c7f6305
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
182 lines
7.4 KiB
C
182 lines
7.4 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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* $FreeBSD$
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*/
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#ifndef _SCIC_TASK_REQUEST_H_
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#define _SCIC_TASK_REQUEST_H_
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/**
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* @file
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*
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* @brief This file contains the structures and interface methods that
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* can be referenced and used by the SCI user for to utilize
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* task management requests.
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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#include <dev/isci/scil/sci_types.h>
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#include <dev/isci/scil/sci_status.h>
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#if !defined(DISABLE_TASK_MANAGEMENT)
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/**
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* @brief This method simply returns the size required to build an SCI
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* based task managment request object.
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*
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* @return Return the size of the SCIC task request object.
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*/
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U32 scic_task_request_get_object_size(
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void
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);
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/**
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* @brief This method is called by the SCI user to construct all SCI Core
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* task management requests, regardless of protocol. Memory
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* initialization and functionality common to all task request types
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* is performed in this method.
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*
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* @note The SCI core implementation will create an association between
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* the user task request object and the core task request object.
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*
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* @param[in] scic_controller the handle to the core controller object
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* for which to build the task managmement request.
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* @param[in] scic_remote_device the handle to the core remote device
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* object for which to build the task management request.
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* passed, then a copy of the request is built internally. The
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* request will be copied into the actual controller request
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* memory when the task is allocated internally during the
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* scic_controller_start_task() method.
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* @param[in] io_tag This parameter specifies the IO tag to be associated
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* with this request. If SCI_CONTROLLER_INVALID_IO_TAG is
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* passed, then a copy of the request is built internally. The
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* request will be copied into the actual controller request
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* memory when the IO tag is allocated internally during the
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* scic_controller_start_io() method.
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* @param[in] user_task_request_object This parameter specifies the user
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* task request to be utilized during construction. This task
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* pointer will become the associated object for the core
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* task request object.
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* @param[in] scic_task_request_memory This parameter specifies the memory
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* location to be utilized when building the core request.
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* @param[out] new_scic_task_request_handle This parameter specifies a
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* pointer to the handle the core will expect in further
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* interactions with the core task request object.
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*
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* @return Indicate if the controller successfully built the task request.
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* @retval SCI_SUCCESS This value is returned if the task request was
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* successfully built.
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*/
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SCI_STATUS scic_task_request_construct(
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SCI_CONTROLLER_HANDLE_T scic_controller,
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SCI_REMOTE_DEVICE_HANDLE_T scic_remote_device,
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U16 io_tag,
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void * user_task_request_object,
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void * scic_task_request_memory,
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SCI_TASK_REQUEST_HANDLE_T * new_scic_task_request_handle
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);
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/**
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* @brief This method is called by the SCI user to construct all SCI Core
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* SSP task management requests. Memory initialization and
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* functionality common to all task request types is performed in
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* this method.
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*
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* @param[out] scic_task_request This parameter specifies the handle
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* to the core task request object for which to construct
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* a SATA specific task management request.
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*
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* @return Indicate if the controller successfully built the task request.
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* @retval SCI_SUCCESS This value is returned if the task request was
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* successfully built.
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*/
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SCI_STATUS scic_task_request_construct_ssp(
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SCI_TASK_REQUEST_HANDLE_T scic_task_request
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);
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/**
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* @brief This method is called by the SCI user to construct all SCI Core
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* SATA task management requests. Memory initialization and
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* functionality common to all task request types is performed in
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* this method.
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*
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* @param[out] scic_task_request_handle This parameter specifies the
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* handle to the core task request object for which to construct
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* a SATA specific task management request.
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*
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* @return Indicate if the controller successfully built the task request.
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* @retval SCI_SUCCESS This value is returned if the task request was
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* successfully built.
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*/
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SCI_STATUS scic_task_request_construct_sata(
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SCI_TASK_REQUEST_HANDLE_T scic_task_request_handle
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);
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#else // !defined(DISABLE_TASK_MANAGEMENT)
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#define scic_task_request_get_object_size() 0
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#define scic_task_request_construct(controller, dev, tag, task, mem, handle) \
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SCI_FAILURE
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#define scic_task_request_construct_ssp(task) SCI_FAILURE
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#define scic_task_request_construct_sata(task) SCI_FAILURE
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#endif // !defined(DISABLE_TASK_MANAGEMENT)
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#ifdef __cplusplus
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}
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#endif // __cplusplus
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#endif // _SCIC_TASK_REQUEST_H_
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