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| Current File : //sys/dev/isci/scil/sati_verify.c |
/*-
* 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: release/9.1.0/sys/dev/isci/scil/sati_verify.c 231689 2012-02-14 15:58:49Z jimharris $");
/**
* @file
* @brief This file contains the method implementations for translating
* the SCSI VERIFY (10, 12, 16-byte) commands.
*/
#if !defined(DISABLE_SATI_VERIFY)
#include <dev/isci/scil/sati_verify.h>
#include <dev/isci/scil/sati_callbacks.h>
#include <dev/isci/scil/sati_util.h>
#include <dev/isci/scil/sati_move.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 VERIFY command translation
* functionality common to all VERIFY 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.
*/
static
SATI_STATUS sati_verify_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);
/**
* The translator doesn't support performing the byte check operation.
* As a result, error the request if the BYTCHK bit is set.
*/
if ((sati_get_cdb_byte(cdb, 1) & SCSI_VERIFY_BYTCHK_ENABLED))
{
sati_scsi_sense_data_construct(
sequence,
scsi_io,
SCSI_STATUS_CHECK_CONDITION,
SCSI_SENSE_ILLEGAL_REQUEST,
SCSI_ASC_INVALID_FIELD_IN_CDB,
SCSI_ASCQ_INVALID_FIELD_IN_CDB
);
return SATI_FAILURE_CHECK_RESPONSE_DATA;
}
sequence->protocol = SAT_PROTOCOL_NON_DATA;
sequence->data_direction = SATI_DATA_DIRECTION_NONE;
sati_set_ata_device_head(register_fis, ATA_DEV_HEAD_REG_LBA_MODE_ENABLE);
// 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_READ_VERIFY_SECTORS_EXT);
else
sati_set_ata_command(register_fis, ATA_READ_VERIFY_SECTORS);
return SATI_SUCCESS;
}
//******************************************************************************
//* P U B L I C M E T H O D S
//******************************************************************************
/**
* @brief This method performs all of the translation required for a
* SCSI VERIFY 10 byte CDB.
* This includes:
* - logical block address translation
* - transfer length (sector count) translation
* - translation items common to all VERIFY CDB sizes.
* For more information on the parameters passed to this method,
* please reference sati_translate_command().
*
* @return Indicate if the command translation was successful.
* For more information on return values please reference
* sati_move_set_sector_count(), sati_verify_translate_command()
*/
SATI_STATUS sati_verify_10_translate_command(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
void * ata_io
)
{
SATI_STATUS status;
U8 * cdb = sati_cb_get_cdb_address(scsi_io);
U32 sector_count = (sati_get_cdb_byte(cdb, 7) << 8) |
(sati_get_cdb_byte(cdb, 8));
if(sati_device_state_stopped(sequence, scsi_io))
{
return SATI_FAILURE_CHECK_RESPONSE_DATA;
}
else
{
sequence->type = SATI_SEQUENCE_VERIFY_10;
// Fill in the Logical Block Address fields and sector count registers.
sati_move_translate_32_bit_lba(sequence, scsi_io, ata_io);
status = sati_move_set_sector_count(sequence,scsi_io,ata_io,sector_count,0);
if (status != SATI_SUCCESS)
return status;
return sati_verify_translate_command(sequence, scsi_io, ata_io);
}
}
/**
* @brief This method performs all of the translation required for a
* SCSI VERIFY 12 byte CDB.
* This includes:
* - logical block address translation
* - transfer length (sector count) translation
* - translation items common to all VERIFY CDB sizes.
* For more information on the parameters passed to this method,
* please reference sati_translate_command().
*
* @return Indicate if the command translation was successful.
* For more information on return values please reference
* sati_move_set_sector_count(), sati_verify_translate_command()
*/
SATI_STATUS sati_verify_12_translate_command(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
void * ata_io
)
{
SATI_STATUS status;
U8 * cdb = sati_cb_get_cdb_address(scsi_io);
U32 sector_count = (sati_get_cdb_byte(cdb, 6) << 24) |
(sati_get_cdb_byte(cdb, 7) << 16) |
(sati_get_cdb_byte(cdb, 8) << 8) |
(sati_get_cdb_byte(cdb, 9));
if(sati_device_state_stopped(sequence, scsi_io))
{
return SATI_FAILURE_CHECK_RESPONSE_DATA;
}
else
{
sequence->type = SATI_SEQUENCE_VERIFY_12;
// Fill in the Logical Block Address fields and sector count registers.
sati_move_translate_32_bit_lba(sequence, scsi_io, ata_io);
status = sati_move_set_sector_count(sequence,scsi_io,ata_io,sector_count,0);
if (status != SATI_SUCCESS)
return status;
return sati_verify_translate_command(sequence, scsi_io, ata_io);
}
}
/**
* @brief This method performs all of the translation required for a
* SCSI VERIFY 16 byte CDB.
* This includes:
* - logical block address translation
* - transfer length (sector count) translation
* - translation items common to all VERIFY CDB sizes.
* For more information on the parameters passed to this method,
* please reference sati_translate_command().
*
* @return Indicate if the command translation was successful.
* For more information on return values please reference
* sati_move_set_sector_count(), sati_verify_translate_command()
*/
SATI_STATUS sati_verify_16_translate_command(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
void * ata_io
)
{
SATI_STATUS status;
U8 * cdb = sati_cb_get_cdb_address(scsi_io);
U32 sector_count = (sati_get_cdb_byte(cdb, 10) << 24) |
(sati_get_cdb_byte(cdb, 11) << 16) |
(sati_get_cdb_byte(cdb, 12) << 8) |
(sati_get_cdb_byte(cdb, 13));
if(sati_device_state_stopped(sequence, scsi_io))
{
return SATI_FAILURE_CHECK_RESPONSE_DATA;
}
else
{
sequence->type = SATI_SEQUENCE_VERIFY_16;
// Fill in the Logical Block Address field.
status = sati_move_translate_64_bit_lba(sequence, scsi_io, ata_io);
if (status != SATI_SUCCESS)
return status;
// Fill in the Sector Count fields.
status = sati_move_set_sector_count(sequence,scsi_io,ata_io,sector_count,0);
if (status != SATI_SUCCESS)
return status;
return sati_verify_translate_command(sequence, scsi_io, ata_io);
}
}
#endif // !defined(DISABLE_SATI_VERIFY)