freebsd-dev/sys/dev/isci/scil/sati_unmap.h

/*-
 * 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 _SATI_UNMAP_H_
#define _SATI_UNMAP_H_

/**
 * @file
 * @brief This file contains the method implementations required to
 *        translate the SCSI reassign blocks command.
 */

#if !defined(DISABLE_SATI_UNMAP)

#include <dev/isci/scil/sati_types.h>
#include <dev/isci/scil/sati_translator_sequence.h>

#define SATI_DSM_MAX_SECTOR_COUNT                     0xFFFF
#define SATI_DSM_MAX_SECTOR_ADDRESS                   0xFFFFFFFFFFFF
#define SATI_DSM_MAX_BUFFER_SIZE                      4096

#define SATI_UNMAP_SIZEOF_SCSI_UNMAP_BLOCK_DESCRIPTOR 16
#define SATI_UNMAP_SIZEOF_SCSI_UNMAP_PARAMETER_LIST   8

typedef struct _TRIM_PAIR
{
    U64 sector_address:48;
    U64 sector_count:16;
} TRIM_PAIR, *PTRIM_PAIR;

U32 sati_unmap_calculate_dsm_blocks(
   SATI_TRANSLATOR_SEQUENCE_T * sequence,
   U32                          dsm_descriptor_count
);

SATI_STATUS sati_unmap_construct(
   SATI_TRANSLATOR_SEQUENCE_T * sequence,
   void                       * scsi_io,
   void                       * ata_io,
   U32                          sector_count
);

SATI_STATUS sati_unmap_load_next_descriptor(
   SATI_TRANSLATOR_SEQUENCE_T * sequence,
   void                       * scsi_io
);

U32 sati_unmap_get_max_buffer_size_in_blocks(
   SATI_TRANSLATOR_SEQUENCE_T * sequence
);

SATI_STATUS sati_unmap_initial_processing(
   SATI_TRANSLATOR_SEQUENCE_T * sequence,
   void                       * scsi_io,
   void                       * ata_io
);

SATI_STATUS sati_unmap_process(
   SATI_TRANSLATOR_SEQUENCE_T * sequence,
   void                       * scsi_io,
   void                       * ata_io
);

SATI_STATUS sati_unmap_translate_command(
   SATI_TRANSLATOR_SEQUENCE_T * sequence,
   void                       * scsi_io,
   void                       * ata_io
);

SATI_STATUS sati_unmap_translate_response(
   SATI_TRANSLATOR_SEQUENCE_T * sequence,
   void                       * scsi_io,
   void                       * ata_io
);

void sati_unmap_terminate(
   SATI_TRANSLATOR_SEQUENCE_T * sequence,
   void                       * scsi_io,
   void                       * ata_io
);
#else // !defined(DISABLE_SATI_UNMAP)
#define sati_unmap_terminate(sequence,scsi_io,ata_io)
#endif // !defined(DISABLE_SATI_UNMAP)

#endif // _SATI_UNMAP_H_