FreeBSD/Linux Kernel Cross Reference
sys/dev/isci/scil/scif_task_request.h

     /*-
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      *
      * This file is provided under a dual BSD/GPLv2 license.  When using or
      * redistributing this file, you may do so under either license.
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      * 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
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     * General Public License for more details.
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     * 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.
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     * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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    #ifndef _SCIF_TASK_REQUEST_H_
    #define _SCIF_TASK_REQUEST_H_
    
    /**
     * @file
     *
     * @brief This file contains the structures and interface methods that
     *        can be referenced and used by the SCI user for the SCI task
     *        management request object.
     */
    
    #ifdef __cplusplus
    extern "C" {
    #endif // __cplusplus
    
    #include <dev/isci/scil/sci_types.h>
    #include <dev/isci/scil/sci_status.h>
    
    
    /**
     * @brief This method simply returns the size required to construct an SCI
     *        based task request object (includes core & framework object size).
     *
     * @return Retrun the size of the SCI task request object.
     */
    U32 scif_task_request_get_object_size(
       void
    );
    
    /**
     * @brief This method is called by the SCIF user to construct a task
     *        management request.  This method will construct a SCIC task request
     *        internally.
     *
     * @note  The SCI framework implementation will create an association between
     *        the user task request object and the framework task request object.
     *
     * @param[in]  scif_controller the handle to the framework controller object
     *             for which to build an IO request.
     * @param[in]  scif_remote_device This parameter specifies the framework
     *             remote device with which this task request is to be associated.
     * @param[in]  io_tag This parameter specifies the IO tag to be associated
     *             with this request.  If SCI_CONTROLLER_INVALID_IO_TAG is
     *             passed, then a copy of the request is built internally.  The
    *             request will be copied into the actual controller request
    *             memory when the IO tag is allocated internally during the
    *             scif_controller_start_task() method.
    * @param[in]  user_task_request_object This parameter specifies the user
    *             task request to be utilized during task construction.  This task
    *             pointer will become the associated object for the framework
    *             task request object.
    * @param[in]  task_request_memory This parameter specifies the memory
    *             to be utilized in the construction of the framework task request.
    * @param[in]  scif_task_request This parameter specifies the handle to be
    *             utilized for all further interactions with this task request
    *             object.
    *
    * @return Indicate if the controller successfully built the task request.
    * @retval SCI_SUCCESS This value is returned if the task request was
    *         successfully built.
    */
   SCI_STATUS scif_task_request_construct(
      SCI_CONTROLLER_HANDLE_T      scif_controller,
      SCI_REMOTE_DEVICE_HANDLE_T   scif_remote_device,
      U16                          io_tag,
      void                       * user_task_request_object,
      void                       * task_request_memory,
      SCI_TASK_REQUEST_HANDLE_T  * scif_task_request
   );
   
   #ifdef __cplusplus
   }
   #endif // __cplusplus
   
   #endif // _SCIF_TASK_REQUEST_H_
   

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