244 lines
10 KiB
C
244 lines
10 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 _SCIF_IO_REQUEST_H_
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#define _SCIF_IO_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 the SCI IO request
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* object.
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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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/**
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* @brief This method simply returns the size required to construct an SCI
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* based IO request object (includes core & framework object size).
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*
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* @return Return the size of the SCI IO request object.
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*/
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U32 scif_io_request_get_object_size(
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void
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);
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/**
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* @brief This method simply the number of data bytes transferred for a
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* STP or SSP io request.
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*
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* @param[in] scif_io_request This parameter specifies the framework IO
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* handle to retrieve the number of data bytes transferred.
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*
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* @return Return the number of data bytes transferred by the io request
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*/
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U32 scif_io_request_get_number_of_bytes_transferred(
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void * scif_io_request
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);
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/**
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* @brief This method is called by the SCIF user to construct an IO request.
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* This method will construct a SCIC IO request internally. The memory
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* for the core IO request is passed as a parameter to this method.
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*
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* @note The SCI framework implementation will create an association between
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* the user IO request object and the framework IO request object.
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*
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* @param[in] scif_controller the handle to the framework controller object
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* for which to build an IO request.
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* @param[in] scif_remote_device This parameter specifies the framework
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* remote device with which this IO request is to be associated.
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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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* scif_controller_start_io() method.
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* @param[in] user_io_request_object This parameter specifies the user
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* IO request to be utilized during IO construction. This IO
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* pointer will become the associated object for the framework
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* IO request object.
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* @param[in] io_request_memory This parameter specifies the memory
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* to be utilized in the construction of the framework IO request.
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* @param[in] scif_io_request This parameter specifies the handle to be
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* utilized for all further interactions with this IO request
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* object.
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*
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* @return Indicate if the controller successfully built the IO request.
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* @retval SCI_SUCCESS This value is returned if the IO request was
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* successfully built.
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*/
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SCI_STATUS scif_io_request_construct(
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SCI_CONTROLLER_HANDLE_T scif_controller,
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SCI_REMOTE_DEVICE_HANDLE_T scif_remote_device,
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U16 io_tag,
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void * user_io_request_object,
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void * io_request_memory,
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SCI_IO_REQUEST_HANDLE_T * scif_io_request
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);
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/**
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* @brief This method simply returns the SCI Core object handle that is
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* associated with the supplied SCI Framework object.
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*
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* @param[in] scif_io_request This parameter specifies the framework IO
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* for which to return the associated core IO request object.
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*
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* @return This method returns a handle to the core IO request object
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* associated with the framework IO request object.
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* @retval SCI_INVALID_HANDLE This return value indicates that the SCI Core
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* IO request handle for the supplied framework IO is invalid.
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*/
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SCI_IO_REQUEST_HANDLE_T scif_io_request_get_scic_handle(
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SCI_IO_REQUEST_HANDLE_T scif_io_request
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);
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/**
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* @brief This method returns the address of the response information unit.
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* This call is only valid if the completion status for the io request
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* is SCI_FAILURE_IO_RESPONSE_VALID.
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*
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* @param[in] scif_io_request This parameter specifies the framework IO
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* for which to return the associated core IO request object.
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*
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* @return The address for the response information unit.
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*/
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void * scif_io_request_get_response_iu_address(
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SCI_IO_REQUEST_HANDLE_T scif_io_request
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);
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/**
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* @brief This method will build an Framework SSP Passthrough IO request based
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* on the user information supplied in the pass-through IO request object.
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* In case of pass through request construction, the driver creates the
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* sci core request object and pass that to the framework
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*
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* @pre
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*
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* @param[in] scif_controller. Not used in the function but kept to maintain uniformity
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* with other io construct functions
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* @param[in] scif_remote_device. This parameter is the device.
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* @param[in] scic_io_request. This parameter is the scic request already constructed
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* @param[in] user_io_request_object, the user io request
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* @param[in] io_request_memory, the scif offset in the user_io_request_object.
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*
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* @param[out] the contructed scif request. This points to the same location as io_request_memory
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*
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* @return Indicate if framework IO request is successfully built.
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* @retval SCI_SUCCESS This value is returned if the IO request was
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* successfully built.
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*/
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SCI_STATUS scif_io_request_construct_with_core (
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SCI_CONTROLLER_HANDLE_T scif_controller,
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SCI_REMOTE_DEVICE_HANDLE_T scif_remote_device,
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void * scic_io_request,
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void * user_io_request_object,
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void * io_request_memory,
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SCI_IO_REQUEST_HANDLE_T * scif_io_request
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);
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/**
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* @brief This method will build the basic scif and scic io request object based
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* on the user information supplied in the pass-through IO request object.
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* This function will not build the protocol specific part of the request
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* but set up the memory areas of scif and scic set the association.
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*
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* @pre
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*
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* @param[in] scif_controller the handle to the framework controller object
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* for which to build an IO request.
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* @param[in] scif_remote_device This parameter specifies the framework
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* remote device with which this IO request is to be associated.
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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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* scif_controller_start_io() method.
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* @param[in] user_io_request_object This parameter specifies the user
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* IO request to be utilized during IO construction. This IO
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* pointer will become the associated object for the framework
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* IO request object.
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* @param[in] io_request_memory This parameter specifies the memory
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* to be utilized in the construction of the framework IO request.
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* @param[in] scif_io_request This parameter specifies the handle to be
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* utilized for all further interactions with this IO request
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* object.
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*
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* @return Indicate if the controller successfully built the IO request.
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* @retval SCI_SUCCESS This value is returned if the IO request was
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* successfully built.
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*/
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SCI_STATUS scif_request_construct(
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SCI_CONTROLLER_HANDLE_T scif_controller,
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SCI_REMOTE_DEVICE_HANDLE_T scif_remote_device,
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U16 io_tag,
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void * user_io_request_object,
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void * io_request_memory,
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SCI_IO_REQUEST_HANDLE_T * scif_io_request
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);
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#ifdef __cplusplus
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}
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#endif // __cplusplus
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#endif // _SCIF_IO_REQUEST_H_
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