FreeBSD/Linux Kernel Cross Reference
sys/dev/isci/scil/sati_synchronize_cache.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.
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD$");
    
    /**
     * @file
     * @brief This file contains the method implementations for translating
     *        the SCSI SYNCHRONIZE_CACHE (10, 16-byte) commands.
     */
    
    #if !defined(DISABLE_SATI_SYNCHRONIZE_CACHE)
    
    #include <dev/isci/scil/sati_synchronize_cache.h>
    #include <dev/isci/scil/sati_callbacks.h>
    #include <dev/isci/scil/sati_util.h>
    #include <dev/isci/scil/sati_translator_sequence.h>
    
    #include <dev/isci/scil/intel_ata.h>
    #include <dev/isci/scil/intel_scsi.h>
    #include <dev/isci/scil/intel_sat.h>
    
    //******************************************************************************
    //* P R I V A T E   M E T H O D S
    //******************************************************************************
    
    /**
     * @brief This method performs the SCSI SYNCHRONIZE_CACHE 10 and 16 command translation
     *        functionality common to all SYNCHRONIZE_CACHE command sizes.
     *        This includes:
     *        - setting the command register
     *        - setting the device head register
     *        - filling in fields in the SATI_TRANSLATOR_SEQUENCE object.
     *        For more information on the parameters passed to this method,
     *        please reference sati_translate_command().
     *
     * @return Indicate if the method was successfully completed.
     * @retval SATI_SUCCESS This is returned in all other cases.
     */
    SATI_STATUS sati_synchronize_cache_translate_command(
       SATI_TRANSLATOR_SEQUENCE_T * sequence,
       void                       * scsi_io,
       void                       * ata_io
    )
    {
       U8 * cdb          = sati_cb_get_cdb_address(scsi_io);
       U8 * register_fis = sati_cb_get_h2d_register_fis_address(ata_io);
   
      sequence->type           = SATI_SEQUENCE_SYNCHRONIZE_CACHE;
      sequence->protocol       = SAT_PROTOCOL_NON_DATA;
      sequence->data_direction = SATI_DATA_DIRECTION_NONE;
   
      if (sati_get_cdb_byte(cdb, 1) & SCSI_SYNCHRONIZE_CACHE_IMMED_ENABLED)
      {
         //currently we ignore immed bit.
         ;
      }
   
      // Ensure the device supports the 48 bit feature set.
      if (sequence->device->capabilities & SATI_DEVICE_CAP_48BIT_ENABLE)
         sati_set_ata_command(register_fis, ATA_FLUSH_CACHE_EXT);
      else
         sati_set_ata_command(register_fis, ATA_FLUSH_CACHE);
   
      return SATI_SUCCESS;
   }
   
   #endif // !defined(DISABLE_SATI_SYNCHRONIZE_CACHE)
   

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