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| Current File : //usr/src/sys/dev/isci/scil/sati_write_and_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_write_and_verify.c 231689 2012-02-14 15:58:49Z jimharris $");
/**
* @file
* @brief This file contains the method implementations to translate
* SCSI Write and Verify command based of the SAT spec.
*/
#if !defined(DISABLE_SATI_WRITE_AND_VERIFY)
#include <dev/isci/scil/sati_write_and_verify.h>
#include <dev/isci/scil/sati_write.h>
#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/intel_ata.h>
#include <dev/isci/scil/intel_scsi.h>
/**
* @brief This function translates a SCSI Write and Verify 10 command
* into both ATA write and ATA read verify commands. This
* happens by passing the SCSI IO, ATA IO, and Sequence pointers
* to both the sati_write_10_translate_command and the
* sati_verify_10_translate_command.
*
* @return Indicate if the command translation succeeded.
* @retval SCI_SUCCESS This is returned if the command translation was
* successful.
* @retval SATI_FAILURE_CHECK_RESPONSE_DATA is returned if there was
* a problem with the translation of write long.
* @retval SATI_FAILURE is returned if there the sequence is out of
* state for a sati_write_and_verify_10 translation.
*
*/
SATI_STATUS sati_write_and_verify_10_translate_command(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
void * ata_io
)
{
SATI_STATUS status;
if(sequence->state == SATI_SEQUENCE_STATE_INITIAL)
{
status = sati_write_10_translate_command(sequence, scsi_io, ata_io);
sequence->state = SATI_SEQUENCE_STATE_INCOMPLETE;
sequence->is_translate_response_required = TRUE;
}
else if(sequence->state == SATI_SEQUENCE_STATE_INCOMPLETE)
{
status = sati_verify_10_translate_command(sequence, scsi_io, ata_io);
sequence->state = SATI_SEQUENCE_STATE_AWAIT_RESPONSE;
}
else
{
//SATI sequence is in the wrong state
return SATI_FAILURE;
}
sequence->type = SATI_SEQUENCE_WRITE_AND_VERIFY;
return status;
}
/**
* @brief This function translates a SCSI Write and Verify 12 command
* into both ATA write and ATA read verify commands. This
* happens by passing the SCSI IO, ATA IO, and Sequence pointers
* to both the sati_write_12_translate_command and the
* sati_verify_12_translate_command.
*
* @return Indicate if the command translation succeeded.
* @retval SCI_SUCCESS This is returned if the command translation was
* successful.
* @retval SATI_FAILURE_CHECK_RESPONSE_DATA is returned if there was
* a problem with the translation of write long.
* @retval SATI_FAILURE is returned if there the sequence is out of
* state for a sati_write_and_verify_12 translation.
*
*/
SATI_STATUS sati_write_and_verify_12_translate_command(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
void * ata_io
)
{
SATI_STATUS status;
if(sequence->state == SATI_SEQUENCE_STATE_INITIAL)
{
status = sati_write_12_translate_command(sequence, scsi_io, ata_io);
sequence->state = SATI_SEQUENCE_STATE_INCOMPLETE;
sequence->is_translate_response_required = TRUE;
}
else if(sequence->state == SATI_SEQUENCE_STATE_INCOMPLETE)
{
status = sati_verify_12_translate_command(sequence, scsi_io, ata_io);
sequence->state = SATI_SEQUENCE_STATE_AWAIT_RESPONSE;
}
else
{
//SATI sequence is in the wrong state
return SATI_FAILURE;
}
sequence->type = SATI_SEQUENCE_WRITE_AND_VERIFY;
return status;
}
/**
* @brief This function translates a SCSI Write and Verify 16 command
* into both ATA write and ATA read verify commands. This
* happens by passing the SCSI IO, ATA IO, and Sequence pointers
* to both the sati_write_16_translate_command and the
* sati_verify_16_translate_command.
*
* @return Indicate if the command translation succeeded.
* @retval SCI_SUCCESS This is returned if the command translation was
* successful.
* @retval SATI_FAILURE_CHECK_RESPONSE_DATA is returned if there was
* a problem with the translation of write long.
* @retval SATI_FAILURE is returned if there the sequence is out of
* state for a sati_write_and_verify_16 translation.
*
*/
SATI_STATUS sati_write_and_verify_16_translate_command(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
void * ata_io
)
{
SATI_STATUS status;
if(sequence->state == SATI_SEQUENCE_STATE_INITIAL)
{
status = sati_write_16_translate_command(sequence, scsi_io, ata_io);
sequence->state = SATI_SEQUENCE_STATE_INCOMPLETE;
sequence->is_translate_response_required = TRUE;
}
else if(sequence->state == SATI_SEQUENCE_STATE_INCOMPLETE)
{
status = sati_verify_16_translate_command(sequence, scsi_io, ata_io);
sequence->state = SATI_SEQUENCE_STATE_AWAIT_RESPONSE;
}
else
{
//SATI sequence is in the wrong state
return SATI_FAILURE;
}
sequence->type = SATI_SEQUENCE_WRITE_AND_VERIFY;
return status;
}
/**
* @brief This function is the response to a sati_write_and_verify
translation. Since no response translation is required
this function will only check the sequence state and return
status.
*
* @return Indicate if the command response translation succeeded.
* @retval SCI_COMPLETE This is returned if the command translation
is successful and requires no more work.
* @retval SATI_SEQUENCE_INCOMPLETE This is returned if the command
translation has finished sending the ATA Write command but
still needs to complete the Verify portion.
* @retval SATI_FAILURE is returned if there the sequence is out of
* state for a sati_write_and_verify translation.
*
*/
SATI_STATUS sati_write_and_verify_translate_response(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
void * ata_io
)
{
if(sequence->state == SATI_SEQUENCE_STATE_INCOMPLETE)
{
return SATI_SEQUENCE_INCOMPLETE;
}
else if(sequence->state == SATI_SEQUENCE_STATE_AWAIT_RESPONSE)
{
sequence->state = SATI_SEQUENCE_STATE_FINAL;
return SATI_COMPLETE;
}
return SATI_FAILURE;
}
#endif //!defined(DISABLE_SATI_WRITE_AND_VERIFY)