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freebsd-skq/sys/dev/isci/scil/sati_mode_sense_10.c
Jim Harris f11c7f6305 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

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/*-
* 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 10-byte commands.
*/
#if !defined(DISABLE_SATI_MODE_SENSE)
#include <dev/isci/scil/sati_mode_sense.h>
#include <dev/isci/scil/sati_mode_sense_10.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
//******************************************************************************
/**
* @brief This method builds the mode parameter header for a 10-byte SCSI
* mode sense data response. The parameter header is 4 bytes in
* size.
* For more information on the parameters passed to this method,
* please reference sati_translate_command().
*
* @param[in] identify This parameter specifies the ATA remote device's
* received IDENTIFY DEVICE data.
* @param[in] mode_data_length This parameter specifies the amount of data
* to be returned as part of this mode sense request.
*
* @return This method returns the number of bytes written into the
* mode sense data buffer.
*/
static
U32 sati_mode_sense_10_build_header(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
ATA_IDENTIFY_DEVICE_DATA_T * identify,
U16 mode_data_length
)
{
U8 * cdb = sati_cb_get_cdb_address(scsi_io);
// Fill in the length of the mode parameter data returned (do not include
// the size of the mode data length field in the total). Adjust the
// mode data length to not include the mode data length fields itself
// (i.e. subtract 2).
mode_data_length -= 2;
sati_set_data_byte(sequence, scsi_io, 0, (U8)(mode_data_length >> 8) & 0xFF);
sati_set_data_byte(sequence, scsi_io, 1, (U8)(mode_data_length & 0xFF));
// Medium Type is 0 for SBC devices
sati_set_data_byte(sequence, scsi_io, 2, SCSI_MODE_HEADER_MEDIUM_TYPE_SBC);
// Write Protect (WP), Rsvd, DPOFUA, Rsvd
if (sequence->device->capabilities & SATI_DEVICE_CAP_DMA_FUA_ENABLE)
sati_set_data_byte(sequence,scsi_io,3,SCSI_MODE_SENSE_HEADER_FUA_ENABLE);
else
sati_set_data_byte(sequence, scsi_io, 3, 0);
// Set the reserved bytes to 0. The LONGLBA field in byte 4 is overridden
// later in this method if LLBAA is enabled.
sati_set_data_byte(sequence, scsi_io, 4, 0);
sati_set_data_byte(sequence, scsi_io, 5, 0);
// The MSB for the block descriptor length is never used since the
// largest block descriptor in this translator is 16-bytes in size.
sati_set_data_byte(sequence, scsi_io, 6, 0);
// Set the LSB block descriptor length if block descriptors are utilized.
if (sati_get_cdb_byte(cdb, 1) & SCSI_MODE_SENSE_DBD_ENABLE)
sati_set_data_byte(sequence, scsi_io, 7, 0);
else
{
// If Long Logical Block Address are allowed, then the block descriptor
// is larger (16 bytes total).
if (sati_get_cdb_byte(cdb, 1) & SCSI_MODE_SENSE_LLBAA_ENABLE)
{
sati_set_data_byte(sequence, scsi_io, 4, 1);
sati_set_data_byte(
sequence, scsi_io, 7, SCSI_MODE_SENSE_LLBA_BLOCK_DESCRIPTOR_LENGTH
);
}
else
{
sati_set_data_byte(
sequence, scsi_io, 7, SCSI_MODE_SENSE_STD_BLOCK_DESCRIPTOR_LENGTH
);
}
}
return SCSI_MODE_SENSE_10_HEADER_LENGTH;
}
static
U32 sati_mode_sense_10_build_llba_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_low, &lba_high, &sector_size
);
// Fill in the 8-byte logical block area
sati_set_data_byte(sequence, scsi_io, offset, (U8)((lba_high>>24) & 0xFF));
sati_set_data_byte(sequence, scsi_io, offset+1, (U8)((lba_high>>16) & 0xFF));
sati_set_data_byte(sequence, scsi_io, offset+2, (U8)((lba_high>>8) & 0xFF));
sati_set_data_byte(sequence, scsi_io, offset+3, (U8)(lba_high & 0xFF));
sati_set_data_byte(sequence, scsi_io, offset+4, (U8)((lba_low>>24) & 0xFF));
sati_set_data_byte(sequence, scsi_io, offset+5, (U8)((lba_low>>16) & 0xFF));
sati_set_data_byte(sequence, scsi_io, offset+6, (U8)((lba_low>>8) & 0xFF));
sati_set_data_byte(sequence, scsi_io, offset+7, (U8)(lba_low & 0xFF));
// Clear the reserved fields.
sati_set_data_byte(sequence, scsi_io, offset+8, 0);
sati_set_data_byte(sequence, scsi_io, offset+9, 0);
sati_set_data_byte(sequence, scsi_io, offset+10, 0);
sati_set_data_byte(sequence, scsi_io, offset+11, 0);
// Fill in the four byte Block Length field
sati_set_data_byte(sequence,scsi_io, offset+12, (U8)((sector_size>>24) & 0xFF));
sati_set_data_byte(sequence,scsi_io, offset+13, (U8)((sector_size>>16) & 0xFF));
sati_set_data_byte(sequence,scsi_io, offset+14, (U8)((sector_size>>8) & 0xFF));
sati_set_data_byte(sequence,scsi_io, offset+15, (U8)(sector_size & 0xFF));
return SCSI_MODE_SENSE_LLBA_BLOCK_DESCRIPTOR_LENGTH;
}
/**
* @brief This method perform the data translation common to all SCSI MODE
* SENSE 10 byte commands. This includes building the mode page
* header and block descriptor (if requested).
* 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 to be used during translation.
* @param[in] transfer_length This parameter specifies the size of the
* mode page (including header & block descriptor).
*
* @return This method returns the number of bytes written into the user's
* mode page data buffer.
*/
static
U32 sati_mode_sense_10_translate_data(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
ATA_IDENTIFY_DEVICE_DATA_T * identify,
void * scsi_io,
U16 transfer_length
)
{
U8 * cdb = sati_cb_get_cdb_address(scsi_io);
U32 offset;
offset = sati_mode_sense_10_build_header(
sequence, scsi_io, identify, transfer_length
);
// Determine if the caller disabled block descriptors (DBD). If not,
// then generate a block descriptor.
if ((sati_get_cdb_byte(cdb, 1) & SCSI_MODE_SENSE_DBD_ENABLE) == 0)
{
// If the user requested the Long LBA format descriptor, then build
// it
if (sati_get_cdb_byte(cdb, 1) & SCSI_MODE_SENSE_LLBAA_ENABLE)
offset += sati_mode_sense_10_build_llba_block_descriptor(
sequence, scsi_io, identify, offset
);
else
offset += sati_mode_sense_build_std_block_descriptor(
sequence, scsi_io, identify, offset
);
}
return offset;
}
//******************************************************************************
//* P R O T E C T E D M E T H O D S
//******************************************************************************
/**
* @brief This method will translate the SCSI mode sense 6 byte command
* into corresponding ATA commands. If the command is well-formed,
* then the translation will result in an ATA IDENTIFY DEVICE
* command.
* For more information on the parameters passed to this method,
* please reference sati_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 This value is returned if
* sense data has been created as a result of something specified
* in the CDB.
*/
SATI_STATUS sati_mode_sense_10_translate_command(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * scsi_io,
void * ata_io
)
{
U8 * cdb = sati_cb_get_cdb_address(scsi_io);
sequence->command_specific_data.scratch = 0;
// Set the data length based on the allocation length field in the CDB.
sequence->allocation_length = (sati_get_cdb_byte(cdb, 7) << 8) |
(sati_get_cdb_byte(cdb, 8));
return sati_mode_sense_translate_command(sequence, scsi_io, ata_io, 10);
}
/**
* @brief This method will perform data translation from the supplied ATA
* input data (i.e. an ATA IDENTIFY DEVICE block) into a CACHING
* mode page format. The data will be written into the user's mode
* page data buffer. This function operates specifically for MODE
* SENSE 10 commands.
* For more information on the parameters passed to this method,
* please reference sati_translate_data().
*
* @return none.
*/
void sati_mode_sense_10_caching_translate_data(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * ata_input_data,
void * scsi_io
)
{
ATA_IDENTIFY_DEVICE_DATA_T * identify = (ATA_IDENTIFY_DEVICE_DATA_T*)
ata_input_data;
U16 data_length = sati_mode_sense_calculate_page_header(scsi_io, 10)
+ SCSI_MODE_PAGE_08_LENGTH;
U32 page_offset = sati_mode_sense_10_translate_data(
sequence, identify, scsi_io, data_length
);
sati_mode_sense_caching_translate_data(
sequence, scsi_io, identify, page_offset
);
}
/**
* @brief This method will perform data translation from the supplied ATA
* input data (i.e. an ATA IDENTIFY DEVICE block) into a INFORMATIONAL
* EXCEPTIONS CONTROL mode page format. The data will be written
* into the user's mode page data buffer. This function operates
* specifically for MODE SENSE 10 commands.
* For more information on the parameters passed to this method,
* please reference sati_translate_data().
*
* @return none.
*/
void sati_mode_sense_10_informational_excp_control_translate_data(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * ata_input_data,
void * scsi_io
)
{
ATA_IDENTIFY_DEVICE_DATA_T * identify = (ATA_IDENTIFY_DEVICE_DATA_T*)
ata_input_data;
U16 data_length = sati_mode_sense_calculate_page_header(scsi_io, 10)
+ SCSI_MODE_PAGE_1C_LENGTH;
U32 page_offset = sati_mode_sense_10_translate_data(
sequence, identify, scsi_io, data_length
);
sati_mode_sense_informational_excp_control_translate_data(
sequence, scsi_io, identify, page_offset
);
}
/**
* @brief This method will perform data translation from the supplied ATA
* input data (i.e. an ATA IDENTIFY DEVICE block) into a Read Write Error
* mode page format. The data will be written
* into the user's mode page data buffer. This function operates
* specifically for MODE SENSE 10 commands.
* For more information on the parameters passed to this method,
* please reference sati_translate_data().
*
* @return none.
*/
void sati_mode_sense_10_read_write_error_translate_data(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * ata_input_data,
void * scsi_io
)
{
ATA_IDENTIFY_DEVICE_DATA_T * identify = (ATA_IDENTIFY_DEVICE_DATA_T*)
ata_input_data;
U16 data_length = sati_mode_sense_calculate_page_header(scsi_io, 10)
+ SCSI_MODE_PAGE_01_LENGTH;
U32 page_offset = sati_mode_sense_10_translate_data(
sequence, identify, scsi_io, data_length
);
sati_mode_sense_read_write_error_translate_data(
sequence, scsi_io, identify, page_offset
);
}
/**
* @brief This method will perform data translation from the supplied ATA
* input data (i.e. an ATA IDENTIFY DEVICE block) into a Disconnect
* Reconnect mode page format. The data will be written
* into the user's mode page data buffer. This function operates
* specifically for MODE SENSE 10 commands.
* For more information on the parameters passed to this method,
* please reference sati_translate_data().
*
* @return none.
*/
void sati_mode_sense_10_disconnect_reconnect_translate_data(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * ata_input_data,
void * scsi_io
)
{
ATA_IDENTIFY_DEVICE_DATA_T * identify = (ATA_IDENTIFY_DEVICE_DATA_T*)
ata_input_data;
U8 data_length = (U8) sati_mode_sense_calculate_page_header(scsi_io, 10)
+ SCSI_MODE_PAGE_02_LENGTH;
U32 page_offset = sati_mode_sense_10_translate_data(
sequence, identify, scsi_io, data_length
);
sati_mode_sense_disconnect_reconnect_translate_data(
sequence, scsi_io, identify, page_offset
);
}
/**
* @brief This method will perform data translation from the supplied ATA
* input data (i.e. an ATA IDENTIFY DEVICE block) into a Control
* mode page format. The data will be written
* into the user's mode page data buffer. This function operates
* specifically for MODE SENSE 10 commands.
* For more information on the parameters passed to this method,
* please reference sati_translate_data().
*
* @return none.
*/
void sati_mode_sense_10_control_translate_data(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * ata_input_data,
void * scsi_io
)
{
ATA_IDENTIFY_DEVICE_DATA_T * identify = (ATA_IDENTIFY_DEVICE_DATA_T*)
ata_input_data;
U8 data_length = (U8) sati_mode_sense_calculate_page_header(scsi_io, 10)
+ SCSI_MODE_PAGE_0A_LENGTH;
U32 page_offset = sati_mode_sense_10_translate_data(
sequence, identify, scsi_io, data_length
);
sati_mode_sense_control_translate_data(
sequence, scsi_io, identify, page_offset
);
}
/**
* @brief This method will perform data translation from the supplied ATA
* input data (i.e. an ATA IDENTIFY DEVICE block) into a Power
* Condition mode page format. The data will be written
* into the user's mode page data buffer. This function operates
* specifically for MODE SENSE 10 commands.
* For more information on the parameters passed to this method,
* please reference sati_translate_data().
*
* @return none.
*/
void sati_mode_sense_10_power_condition_translate_data(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * ata_input_data,
void * scsi_io
)
{
ATA_IDENTIFY_DEVICE_DATA_T * identify = (ATA_IDENTIFY_DEVICE_DATA_T*)
ata_input_data;
U8 data_length;
U32 page_offset;
data_length = (U8) sati_mode_sense_calculate_page_header(scsi_io, 10)
+ SCSI_MODE_PAGE_1A_LENGTH;
page_offset = sati_mode_sense_10_translate_data(
sequence, identify, scsi_io, data_length
);
sati_mode_sense_power_condition_translate_data(
sequence, scsi_io, identify, page_offset
);
}
/**
* @brief This method will perform data translation from the supplied ATA
* input data (i.e. an ATA IDENTIFY DEVICE block) into an ALL
* PAGES mode page format. The ALL PAGES mode page is basically a
* conglomeration of all mode pages and sub-pages into a single
* page. The data will be written into the user's mode page
* data buffer. This function operates specifically for MODE
* SENSE 10 commands.
* For more information on the parameters passed to this method,
* please reference sati_translate_data().
*
* @return none.
*/
void sati_mode_sense_10_all_pages_translate_data(
SATI_TRANSLATOR_SEQUENCE_T * sequence,
void * ata_input_data,
void * scsi_io
)
{
ATA_IDENTIFY_DEVICE_DATA_T * identify = (ATA_IDENTIFY_DEVICE_DATA_T*)
ata_input_data;
U8 data_length = (U8) sati_mode_sense_calculate_page_header(scsi_io, 10)
+ SCSI_MODE_PAGE_01_LENGTH
+ SCSI_MODE_PAGE_02_LENGTH
+ SCSI_MODE_PAGE_08_LENGTH
+ SCSI_MODE_PAGE_0A_LENGTH
+ SCSI_MODE_PAGE_1C_LENGTH;
U32 page_offset = sati_mode_sense_10_translate_data(
sequence, identify, scsi_io, data_length
);
sati_mode_sense_all_pages_translate_data(
sequence, scsi_io, identify, page_offset
);
}
#endif // !defined(DISABLE_SATI_MODE_SENSE)
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