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freebsd-dev/sys/dev/isci/scil/sati_mode_sense.c

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Add isci(4) driver for amd64 and i386 targets. The isci driver is for the integrated SAS controller in the Intel C600 (Patsburg) chipset. Source files in sys/dev/isci directory are FreeBSD-specific, and sys/dev/isci/scil subdirectory contains an OS-agnostic library (SCIL) published by Intel to control the SAS controller. This library is used primarily as-is in this driver, with some post-processing to better integrate into the kernel build environment. isci.4 and a README in the sys/dev/isci directory contain a few additional details. This driver is only built for amd64 and i386 targets. Sponsored by: Intel Reviewed by: scottl Approved by: scottl
2012-01-31 19:38:18 +00:00
/*-
sys/dev: further adoption of SPDX licensing ID tags. Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
2017-11-27 14:52:40 +00:00
* SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0
*
Add isci(4) driver for amd64 and i386 targets. The isci driver is for the integrated SAS controller in the Intel C600 (Patsburg) chipset. Source files in sys/dev/isci directory are FreeBSD-specific, and sys/dev/isci/scil subdirectory contains an OS-agnostic library (SCIL) published by Intel to control the SAS controller. This library is used primarily as-is in this driver, with some post-processing to better integrate into the kernel build environment. isci.4 and a README in the sys/dev/isci directory contain a few additional details. This driver is only built for amd64 and i386 targets. Sponsored by: Intel Reviewed by: scottl Approved by: scottl
2012-01-31 19:38:18 +00:00
* 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 required to
* translate the SCSI mode sense (6 and 10-byte) commands.
*/
#if !defined(DISABLE_SATI_MODE_SENSE)
#include <dev/isci/scil/sati_mode_sense.h>
#include <dev/isci/scil/sati_mode_pages.h>
#include <dev/isci/scil/sati_callbacks.h>
#include <dev/isci/scil/sati_util.h>
#include <dev/isci/scil/intel_scsi.h>
#include <dev/isci/scil/intel_ata.h>
//******************************************************************************
//* P R I V A T E M E T H O D S
//******************************************************************************
#define STANDBY_TIMER_DISABLED 0x00
#define STANDBY_TIMER_ENABLED 0x01
#define STANDBY_TIMER_SUPPORTED 0x2000
/**
* @brief This method indicates if the supplied page control is supported
* by this translation implementation. Currently savable parameters
* (i.e. non-volatile) are not supported.
* For more information on the parameters passed to this method,
* please reference sati_translate_command().
*
* @return This method returns an indication of whether the page control
* specified in the SCSI CDB is supported.
* @retval SATI_SUCCESS This value is returned if the page control is
* supported.
* @retval SATI_FAILURE_CHECK_RESPONSE_DATA This value is returned if the
* page control is not supported.
*/
static
SATI_STATUS sati_mode_sense_is_page_control_supported(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io
)
{
U8 * cdb = sati_cb_get_cdb_address(scsi_io);
switch (sati_get_cdb_byte(cdb, 2) >> SCSI_MODE_SENSE_PC_SHIFT)
{
case SCSI_MODE_SENSE_PC_CURRENT:
case SCSI_MODE_SENSE_PC_DEFAULT:
case SCSI_MODE_SENSE_PC_CHANGEABLE:
return SATI_SUCCESS;
break;
default:
case SCSI_MODE_SENSE_PC_SAVED:
sati_scsi_sense_data_construct(
sequence,
scsi_io,
SCSI_STATUS_CHECK_CONDITION,
SCSI_SENSE_ILLEGAL_REQUEST,
SCSI_ASC_SAVING_PARMS_NOT_SUPPORTED,
SCSI_ASCQ_SAVING_PARMS_NOT_SUPPORTED
);
return SATI_FAILURE_CHECK_RESPONSE_DATA;
break;
}
}
/**
* @brief This method indicates if the page code field in the SCSI CDB
* is supported by this translation.
* For more information on the parameters passed to this method,
* please reference sati_translate_command().
*
* @param[in] cdb_length This parameter specifies the length of the SCSI
* CDB being translated (e.g. 6-byte, 10-byte, 12-byte, etc.)
*
* @return This method returns an indication as to whether the page code
* in the CDB is supported.
* @retval SATI_SUCCESS This value is returned if the page code is
* supported.
* @retval SATI_FAILURE_CHECK_RESPONSE_DATA This value is returned if the
* page code is not supported.
*/
static
SATI_STATUS sati_mode_sense_is_page_code_supported(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
U8 cdb_length
)
{
U8 * cdb = sati_cb_get_cdb_address(scsi_io);
switch (sati_get_cdb_byte(cdb, 2) & SCSI_MODE_SENSE_PAGE_CODE_ENABLE)
{
case SCSI_MODE_PAGE_CACHING:
if (sati_get_cdb_byte(cdb, 0) == SCSI_MODE_SENSE_6)
sequence->type = SATI_SEQUENCE_MODE_SENSE_6_CACHING;
else
sequence->type = SATI_SEQUENCE_MODE_SENSE_10_CACHING;
break;
case SCSI_MODE_PAGE_ALL_PAGES:
if (sati_get_cdb_byte(cdb, 0) == SCSI_MODE_SENSE_6)
sequence->type = SATI_SEQUENCE_MODE_SENSE_6_ALL_PAGES;
else
sequence->type = SATI_SEQUENCE_MODE_SENSE_10_ALL_PAGES;
break;
case SCSI_MODE_PAGE_READ_WRITE_ERROR:
if (sati_get_cdb_byte(cdb, 0) == SCSI_MODE_SENSE_6)
sequence->type = SATI_SEQUENCE_MODE_SENSE_6_READ_WRITE_ERROR;
else
sequence->type = SATI_SEQUENCE_MODE_SENSE_10_READ_WRITE_ERROR;
break;
case SCSI_MODE_PAGE_DISCONNECT_RECONNECT:
if (sati_get_cdb_byte(cdb, 0) == SCSI_MODE_SENSE_6)
sequence->type = SATI_SEQUENCE_MODE_SENSE_6_DISCONNECT_RECONNECT;
else
sequence->type = SATI_SEQUENCE_MODE_SENSE_10_DISCONNECT_RECONNECT;
break;
case SCSI_MODE_PAGE_CONTROL:
if (sati_get_cdb_byte(cdb, 0) == SCSI_MODE_SENSE_6)
sequence->type = SATI_SEQUENCE_MODE_SENSE_6_CONTROL;
else
sequence->type = SATI_SEQUENCE_MODE_SENSE_10_CONTROL;
break;
case SCSI_MODE_PAGE_POWER_CONDITION:
if (sati_get_cdb_byte(cdb, 0) == SCSI_MODE_SENSE_6)
sequence->type = SATI_SEQUENCE_MODE_SENSE_6_POWER_CONDITION;
else
sequence->type = SATI_SEQUENCE_MODE_SENSE_10_POWER_CONDITION;
break;
case SCSI_MODE_PAGE_INFORMATIONAL_EXCP_CONTROL:
// The informational exceptions control page is only useful
// if SMART is supported.
if ((sequence->device->capabilities | SATI_DEVICE_CAP_SMART_SUPPORT)
== 0)
{
// For a MODE SENSE, utilize INVALID FIELD IN CDB,
// For a MODE SELECT, utilize INVALID FIELD IN PARAMETER LIST.
if (sati_get_cdb_byte(cdb, 0) == SCSI_MODE_SENSE_6)
{
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
);
}
else
{
sati_scsi_sense_data_construct(
sequence,
scsi_io,
SCSI_STATUS_CHECK_CONDITION,
SCSI_SENSE_ILLEGAL_REQUEST,
SCSI_ASC_INVALID_FIELD_IN_PARM_LIST,
SCSI_ASCQ_INVALID_FIELD_IN_PARM_LIST
);
}
return SATI_FAILURE_CHECK_RESPONSE_DATA;
}
if (sati_get_cdb_byte(cdb, 0) == SCSI_MODE_SENSE_6)
sequence->type = SATI_SEQUENCE_MODE_SENSE_6_INFORMATIONAL_EXCP_CONTROL;
else
sequence->type = SATI_SEQUENCE_MODE_SENSE_10_INFORMATIONAL_EXCP_CONTROL;
break;
default:
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;
break;
}
return SATI_SUCCESS;
}
//******************************************************************************
//* P R O T E C T E D M E T H O D S
//******************************************************************************
/**
* @brief This method will calculate the size of the mode sense data header.
* This includes the block descriptor if one is requested.
*
* @param[in] scsi_io This parameter specifies the user's SCSI IO object
* for which to calculate the mode page header.
* @param[in] cdb_size This parameter specifies the number of bytes
* associated with the CDB for which to calculate the header.
*
* @return This method returns the size, in bytes, for the mode page header.
*/
U16 sati_mode_sense_calculate_page_header(
void * scsi_io,
U8 cdb_size
)
{
U8 * cdb = sati_cb_get_cdb_address(scsi_io);
U16 page_length = 0;
// The Mode page header length is different for 6-byte vs. 10-byte CDBs.
if (cdb_size == 6)
page_length += SCSI_MODE_SENSE_6_HEADER_LENGTH;
else
page_length += SCSI_MODE_SENSE_10_HEADER_LENGTH;
// Are block descriptors disabled (DBD)? 0 indicates they are enabled.
if ((sati_get_cdb_byte(cdb, 1) & SCSI_MODE_SENSE_DBD_ENABLE) == 0)
{
// The LLBAA bit is not defined for 6-byte mode sense requests.
if ( (cdb_size == 10)
&& (sati_get_cdb_byte(cdb, 1) & SCSI_MODE_SENSE_LLBAA_ENABLE) )
page_length += SCSI_MODE_SENSE_LLBA_BLOCK_DESCRIPTOR_LENGTH;
else
page_length += SCSI_MODE_SENSE_STD_BLOCK_DESCRIPTOR_LENGTH;
}
return page_length;
}
/**
* @brief This method performs command translation common to all mode sense
* requests (6 or 10 byte).
* For more information on the parameters passed to this method,
* please reference sati_translate_command().
*
* @param[in] cdb_length This parameter specifies the number of bytes
* in the CDB (6 or 10).
*
* @return This method returns an indication as to whether the translation
* succeeded.
* @retval SCI_SUCCESS This value is returned if translation succeeded.
* @see sati_mode_sense_is_page_control_supported() or
* sati_mode_sense_is_page_code_supported() for more information.
*/
SATI_STATUS sati_mode_sense_translate_command(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
void * ata_io,
U8 cdb_length
)
{
SATI_STATUS status;
/**
* Validate that the supplied page control (PC) field is supported.
*/
status = sati_mode_sense_is_page_control_supported(sequence, scsi_io);
if (status != SATI_SUCCESS)
return status;
/**
* Validate that the supplied page code is supported.
*/
status = sati_mode_sense_is_page_code_supported(sequence,scsi_io,cdb_length);
if (status != SATI_SUCCESS)
return status;
sati_ata_identify_device_construct(ata_io, sequence);
return SATI_SUCCESS;
}
/**
* @brief This method will build the standard block descriptor for a MODE
* SENSE 6 or 10 byte request.
* For more information on the parameters passed to this method,
* please reference sati_translate_command().
*
* @param[in] identify This parameter specifies the IDENTIFY DEVICE data
* associated with the SCSI IO.
* @param[in] offset This parameter specifies the offset into the data
* buffer at which to build the block descriptor.
*
* @return This method returns the size of the block descriptor built.
*/
U32 sati_mode_sense_build_std_block_descriptor(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
ATA_IDENTIFY_DEVICE_DATA_T * identify,
U32 offset
)
{
U32 lba_low = 0;
U32 lba_high = 0;
U32 sector_size = 0;
// Extract the sector information (sector size, logical blocks) from
// the retrieved ATA identify device data.
sati_ata_identify_device_get_sector_info(
identify, &lba_high, &lba_low, &sector_size
);
// Fill in the 4-byte logical block address field.
sati_set_data_byte(sequence, scsi_io, offset, (U8)((lba_low>>24) & 0xFF));
sati_set_data_byte(sequence, scsi_io, offset+1, (U8)((lba_low>>16) & 0xFF));
sati_set_data_byte(sequence, scsi_io, offset+2, (U8)((lba_low>>8) & 0xFF));
sati_set_data_byte(sequence, scsi_io, offset+3, (U8)(lba_low & 0xFF));
// Clear the reserved field.
sati_set_data_byte(sequence, scsi_io, offset+4, 0);
// Fill in the three byte Block Length field
sati_set_data_byte(sequence,scsi_io, offset+5, (U8)((sector_size>>16) & 0xFF));
sati_set_data_byte(sequence,scsi_io, offset+6, (U8)((sector_size>>8) & 0xFF));
sati_set_data_byte(sequence,scsi_io, offset+7, (U8)(sector_size & 0xFF));
return SCSI_MODE_SENSE_STD_BLOCK_DESCRIPTOR_LENGTH;
}
/**
* @brief This method simply copies the mode sense data into the buffer
* at the location specified by page_start. The buffer copied is
* determined by page_control (e.g. current, default, or changeable
* values).
* For more information on the parameters passed to this method,
* please reference sati_translate_command().
*
* @param[in] page_start This parameter specifies the starting offset at
* which to copy the mode page data.
* @param[in] page_control This parameter specifies the page control
* indicating the source buffer to be copied.
* @param[in] page_code This specifies the mode sense page to copy.
*
* @return This method returns the size of the mode page data being copied.
*/
U32 sati_mode_sense_copy_initial_data(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
U32 page_start,
U8 page_control,
U8 page_code
)
{
U16 page_index = sati_mode_page_get_page_index(page_code);
U32 page_length = sat_mode_page_sizes[page_index];
// Find out if the current values are requested or if the default
// values are being requested.
if (page_control == SCSI_MODE_SENSE_PC_CHANGEABLE)
{
// Copy the changeable mode page information.
sati_copy_data(
sequence,
scsi_io,
page_start,
sat_changeable_mode_pages[page_index],
page_length
);
}
else
{
// Copy the default static values template to the user data area.
sati_copy_data(
sequence,
scsi_io,
page_start,
sat_default_mode_pages[page_index],
page_length
);
}
return page_length;
}
/**
* @brief This method performs the read/write error recovery mode page
* specific data translation based upon the contents of the remote
* device IDENTIFY DEVICE data.
* For more information on the parameters passed to this method,
* please reference sati_translate_command().
*
* @param[in] identify This parameter specifies the remote device's
* IDENTIFY DEVICE data received as part of the IO request.
* @param[in] offset This parameter specifies the offset into the data
* buffer where the translated data is to be written.
*
* @return This method returns the size of the mode page data that was
* translated.
*/
U32 sati_mode_sense_read_write_error_translate_data(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
ATA_IDENTIFY_DEVICE_DATA_T * identify,
U32 offset
)
{
U8 * cdb = sati_cb_get_cdb_address(scsi_io);
U8 page_control = sati_get_cdb_byte(cdb, 2) >> SCSI_MODE_SENSE_PC_SHIFT;
U32 page_length;
page_length = sati_mode_sense_copy_initial_data(
sequence,
scsi_io,
offset,
page_control,
SCSI_MODE_PAGE_READ_WRITE_ERROR
);
// Currently we do not override any bits in this mode page from the
// identify data.
return page_length;
}
/**
* @brief This method performs the disconnect/reconnect mode page
* specific data translation based upon the contents of the remote
* device IDENTIFY DEVICE data.
* For more information on the parameters passed to this method,
* please reference sati_translate_command().
*
* @param[in] identify This parameter specifies the remote device's
* IDENTIFY DEVICE data received as part of the IO request.
* @param[in] offset This parameter specifies the offset into the data
* buffer where the translated data is to be written.
*
* @return This method returns the size of the mode page data that was
* translated.
*/
U32 sati_mode_sense_disconnect_reconnect_translate_data(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
ATA_IDENTIFY_DEVICE_DATA_T * identify,
U32 offset
)
{
U8 * cdb = sati_cb_get_cdb_address(scsi_io);
U8 page_control = sati_get_cdb_byte(cdb, 2) >> SCSI_MODE_SENSE_PC_SHIFT;
U32 page_length;
page_length = sati_mode_sense_copy_initial_data(
sequence,
scsi_io,
offset,
page_control,
SCSI_MODE_PAGE_DISCONNECT_RECONNECT
);
// Currently we do not override any bits in this mode page from the
// identify data.
return page_length;
}
/**
* @brief This method performs the caching mode page specific data
* translation based upon the contents of the remote device IDENTIFY
* DEVICE data.
* For more information on the parameters passed to this method,
* please reference sati_translate_command().
*
* @param[in] identify This parameter specifies the remote device's
* IDENTIFY DEVICE data received as part of the IO request.
* @param[in] offset This parameter specifies the offset into the data
* buffer where the translated data is to be written.
*
* @return This method returns the size of the mode page data that was
* translated.
*/
U32 sati_mode_sense_caching_translate_data(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
ATA_IDENTIFY_DEVICE_DATA_T * identify,
U32 offset
)
{
U8 * cdb = sati_cb_get_cdb_address(scsi_io);
U8 page_control = sati_get_cdb_byte(cdb, 2) >> SCSI_MODE_SENSE_PC_SHIFT;
U32 page_length;
page_length = sati_mode_sense_copy_initial_data(
sequence,
scsi_io,
offset,
page_control,
SCSI_MODE_PAGE_CACHING
);
// If the request queried for the current values, then
// we need to translate the data from the IDENTIFY DEVICE request.
if (page_control == SCSI_MODE_SENSE_PC_CURRENT)
{
U8 value;
// Update the Write Cache Enabled (WCE) bit in the mode page data
// buffer based on the identify response.
if ((identify->command_set_enabled0 & ATA_IDENTIFY_DEVICE_WCE_ENABLE) != 0)
{
sati_get_data_byte(sequence, scsi_io, offset+2, &value);
value |= SCSI_MODE_PAGE_CACHE_PAGE_WCE_BIT;
sati_set_data_byte(sequence, scsi_io, offset+2, value);
//This byte has been set twice and needs to be decremented
sequence->number_data_bytes_set--;
}
// Update the Disable Read Ahead (DRA) bit in the mode page data
// buffer based on the identify response.
if ((identify->command_set_enabled0 & ATA_IDENTIFY_DEVICE_RA_ENABLE) == 0)
{
// In SATA the polarity of the bits is inverse.
// - SCSI = Disable Read Ahead
// - ATA = Read Ahead
sati_get_data_byte(sequence, scsi_io, offset+12, &value);
value |= SCSI_MODE_PAGE_CACHE_PAGE_DRA_BIT;
sati_set_data_byte(sequence, scsi_io, offset+12, value);
//This byte has been set twice, the first time in
//sati_mode_sense_copy_initial_data. number_data_bytes_set
//needs to be decremented
sequence->number_data_bytes_set--;
}
}
return page_length;
}
/**
* @brief This method performs the control mode page specific data
* translation based upon the contents of the remote device
* IDENTIFY DEVICE data.
* For more information on the parameters passed to this method,
* please reference sati_translate_command().
*
* @param[in] identify This parameter specifies the remote device's
* IDENTIFY DEVICE data received as part of the IO request.
* @param[in] offset This parameter specifies the offset into the data
* buffer where the translated data is to be written.
*
* @return This method returns the size of the mode page data that was
* translated.
*/
U32 sati_mode_sense_control_translate_data(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
ATA_IDENTIFY_DEVICE_DATA_T * identify,
U32 offset
)
{
U8 * cdb = sati_cb_get_cdb_address(scsi_io);
U8 page_control = sati_get_cdb_byte(cdb, 2) >> SCSI_MODE_SENSE_PC_SHIFT;
U32 page_length;
U8 value;
page_length = sati_mode_sense_copy_initial_data(
sequence,
scsi_io,
offset,
page_control,
SCSI_MODE_PAGE_CONTROL
);
if (sequence->device->descriptor_sense_enable)
{
sati_get_data_byte(sequence, scsi_io, offset+2,
&value);
sati_set_data_byte(sequence, scsi_io, offset+2,
value | SCSI_MODE_SELECT_MODE_PAGE_D_SENSE);
}
return page_length;
}
/**
* @brief This method performs the informational exceptions control mode
* page specific data translation based upon the contents of the
* remote device IDENTIFY DEVICE data.
* For more information on the parameters passed to this method,
* please reference sati_translate_command().
*
* @param[in] identify This parameter specifies the remote device's
* IDENTIFY DEVICE data received as part of the IO request.
* @param[in] offset This parameter specifies the offset into the data
* buffer where the translated data is to be written.
*
* @return This method returns the size of the mode page data that was
* translated.
*/
U32 sati_mode_sense_informational_excp_control_translate_data(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
ATA_IDENTIFY_DEVICE_DATA_T * identify,
U32 offset
)
{
U8 * cdb = sati_cb_get_cdb_address(scsi_io);
U8 page_control = sati_get_cdb_byte(cdb, 2) >> SCSI_MODE_SENSE_PC_SHIFT;
U32 page_length;
page_length = sati_mode_sense_copy_initial_data(
sequence,
scsi_io,
offset,
page_control,
SCSI_MODE_PAGE_INFORMATIONAL_EXCP_CONTROL
);
// If the request queried for the current values, then
// we need to translate the data from the IDENTIFY DEVICE request.
if (page_control == SCSI_MODE_SENSE_PC_CURRENT)
{
U8 value;
sati_get_data_byte(sequence, scsi_io, offset+2, &value);
// Determine if the SMART feature set is supported and enabled.
if ( (identify->command_set_supported0
& ATA_IDENTIFY_COMMAND_SET_SUPPORTED0_SMART_ENABLE)
&& (identify->command_set_enabled0
& ATA_IDENTIFY_COMMAND_SET_ENABLED0_SMART_ENABLE) )
{
// Clear the DXCPT field since the SMART feature is supported/enabled.
value &= ~SCSI_MODE_PAGE_INFORMATIONAL_EXCP_DXCPT_ENABLE;
}
else
{
// Set the Disable Exception Control (DXCPT) field since the SMART
// feature is not supported or enabled.
value |= SCSI_MODE_PAGE_INFORMATIONAL_EXCP_DXCPT_ENABLE;
}
sati_set_data_byte(sequence, scsi_io, offset+2, value);
//This byte has been set twice, the first time in
//sati_mode_sense_copy_initial_data. number_data_bytes_set
//needs to be decremented
sequence->number_data_bytes_set--;
}
return page_length;
}
/**
* @brief This method performs the Power Condition mode page
* specific data translation based upon the contents of the
* remote device IDENTIFY DEVICE data.
* For more information on the parameters passed to this method,
* please reference sati_translate_command().
*
* @param[in] identify This parameter specifies the remote device's
* IDENTIFY DEVICE data received as part of the IO request.
* @param[in] offset This parameter specifies the offset into the data
* buffer where the translated data is to be written.
*
* @return This method returns the size of the mode page data that was
* translated.
*/
U32 sati_mode_sense_power_condition_translate_data(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
ATA_IDENTIFY_DEVICE_DATA_T * identify,
U32 offset
)
{
U8 * cdb = sati_cb_get_cdb_address(scsi_io);
U8 page_control = sati_get_cdb_byte(cdb, 2) >> SCSI_MODE_SENSE_PC_SHIFT;
U8 ata_sb_timer;
//Represents tenths of seconds
U32 standby_timer = 0x00000000;
U8 standby_enabled = STANDBY_TIMER_DISABLED;
if ((page_control == SCSI_MODE_SENSE_PC_CURRENT) &&
(identify->capabilities1 & STANDBY_TIMER_SUPPORTED))
{
standby_enabled = STANDBY_TIMER_ENABLED;
ata_sb_timer = sequence->device->ata_standby_timer;
//converting ATA timer values into SCSI timer values
if(ata_sb_timer <= 0xF0)
{
standby_timer = ata_sb_timer * 50;
}
else if(ata_sb_timer <= 0xFB)
{
standby_timer = ((ata_sb_timer - 240) * 18000);
}
else if(ata_sb_timer == 0xFC)
{
standby_timer = 12600;
}
else if(ata_sb_timer == 0xFD)
{
standby_timer = 432000;
}
else if(ata_sb_timer == 0xFF)
{
standby_timer = 12750;
}
else
{
standby_timer = 0xFFFFFFFF;
}
}
sati_set_data_byte(sequence, scsi_io, offset, SCSI_MODE_PAGE_POWER_CONDITION);
sati_set_data_byte(sequence, scsi_io, offset + 1, (SCSI_MODE_PAGE_1A_LENGTH - 2));
sati_set_data_byte(sequence, scsi_io, offset + 2, 0x00);
sati_set_data_byte(sequence, scsi_io, offset + 3, standby_enabled);
sati_set_data_byte(sequence, scsi_io, offset + 4, 0x00);
sati_set_data_byte(sequence, scsi_io, offset + 5, 0x00);
sati_set_data_byte(sequence, scsi_io, offset + 6, 0x00);
sati_set_data_byte(sequence, scsi_io, offset + 7, 0x00);
sati_set_data_byte(sequence, scsi_io, offset + 8, (U8) (standby_timer >> 24));
sati_set_data_byte(sequence, scsi_io, offset + 9, (U8) (standby_timer >> 16));
sati_set_data_byte(sequence, scsi_io, offset + 10, (U8) (standby_timer >> 8));
sati_set_data_byte(sequence, scsi_io, offset + 11, (U8) standby_timer);
return SCSI_MODE_PAGE_1A_LENGTH;
}
/**
* @brief This method performs the all pages mode page specific data
* translation based upon the contents of the remote device
* IDENTIFY DEVICE data. The ALL PAGES mode sense request asks
* for all of mode pages and sub-pages in a single page.
* The mode pages are added in ascending order.
* For more information on the parameters passed to this method,
* please reference sati_translate_command().
*
* @param[in] identify This parameter specifies the remote device's
* IDENTIFY DEVICE data received as part of the IO request.
* @param[in] offset This parameter specifies the offset into the data
* buffer where the translated data is to be written.
*
* @return This method returns the size of the mode page data that was
* translated.
*/
U32 sati_mode_sense_all_pages_translate_data(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
ATA_IDENTIFY_DEVICE_DATA_T * identify,
U32 offset
)
{
offset += sati_mode_sense_read_write_error_translate_data(
sequence, scsi_io, identify, offset
);
offset += sati_mode_sense_disconnect_reconnect_translate_data(
sequence, scsi_io, identify, offset
);
offset += sati_mode_sense_caching_translate_data(
sequence, scsi_io, identify, offset
);
offset += sati_mode_sense_control_translate_data(
sequence, scsi_io, identify, offset
);
offset += sati_mode_sense_informational_excp_control_translate_data(
sequence, scsi_io, identify, offset
);
return offset;
}
#endif // !defined(DISABLE_SATI_MODE_SENSE)
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