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FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/dev/isci/scil/sati_device.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_device.c 231689 2012-02-14 15:58:49Z jimharris $");
/**
* @file
* @brief This file contains all of the defintions for the SATI remote
* device object. Some translations require information to be
* remembered on a per device basis. This information is stored
* in the object defined in this file.
*/
#include <dev/isci/scil/sati_device.h>
#include <dev/isci/scil/sci_util.h> // Move this file.
#include <dev/isci/scil/sati_unmap.h>
#include <dev/isci/scil/intel_scsi.h>
/**
* @brief This method simply initializes the data members in the device
* object to their appropriate values.
*
* @param[in] device This parameter specifies the device for which to
* initialize the data members.
* @param[in] is_ncq_enabled This parameter specifies if NCQ is to be
* utilized for this particular SATI device.
* @param[in] max_ncq_depth This parameter specifies the maximum desired
* NCQ depth. Once this value is set it can never be increased.
* @param[in] ignore_fua This parameter specifies FUA is to be ignored and not
* sent to the end device. Some OS (Windows) has quirky behaviors with FUA
* and recommend driver developers ignore the bit.
*
* @return none
*/
void sati_device_construct(
SATI_DEVICE_T * device,
BOOL is_ncq_enabled,
U8 max_ncq_depth,
BOOL ignore_fua
)
{
device->state = SATI_DEVICE_STATE_OPERATIONAL;
device->capabilities = 0;
device->descriptor_sense_enable = SCSI_MODE_PAGE_CONTROL_D_SENSE_DISABLE;
// The user requested that NCQ be utilized if it is supported by
// the device.
if (is_ncq_enabled == TRUE)
device->capabilities |= SATI_DEVICE_CAP_NCQ_REQUESTED_ENABLE;
device->ncq_depth = max_ncq_depth;
// The user requested that FUA is ignored (windows performance issue)
if (ignore_fua == TRUE)
device->capabilities |= SATI_DEVICE_CAP_IGNORE_FUA;
}
/**
* @brief This method will update the SATI_DEVICE capabilities based on
* the supplied ATA_IDENTIFY_DEVICE_DATA.
*
* @param[in] device This parameter specifies the device for which to update
* the supported capabilities.
* @param[in] identify This parameter specifies the ata identify device
* information from which to extract the capabilities of the
* device.
*
* @return none
*/
void sati_device_update_capabilities(
SATI_DEVICE_T * device,
ATA_IDENTIFY_DEVICE_DATA_T * identify
)
{
U16 capabilities = 0;
if (identify->capabilities1 & ATA_IDENTIFY_CAPABILITIES1_NORMAL_DMA_ENABLE)
capabilities |= SATI_DEVICE_CAP_UDMA_ENABLE;
if (identify->command_set_supported1
& ATA_IDENTIFY_COMMAND_SET_SUPPORTED1_48BIT_ENABLE)
{
capabilities |= SATI_DEVICE_CAP_48BIT_ENABLE;
}
if (identify->command_set_supported0
& ATA_IDENTIFY_COMMAND_SET_SUPPORTED0_SMART_ENABLE)
{
capabilities |= SATI_DEVICE_CAP_SMART_SUPPORT;
}
if (identify->command_set_enabled0
& ATA_IDENTIFY_COMMAND_SET_SUPPORTED0_SMART_ENABLE)
{
capabilities |= SATI_DEVICE_CAP_SMART_ENABLE;
}
// Save the NCQ related capabilities information.
if (identify->serial_ata_capabilities
& ATA_IDENTIFY_SATA_CAPABILITIES_NCQ_ENABLE)
{
if (device->capabilities & SATI_DEVICE_CAP_NCQ_REQUESTED_ENABLE)
{
capabilities |= SATI_DEVICE_CAP_NCQ_REQUESTED_ENABLE;
capabilities |= SATI_DEVICE_CAP_NCQ_SUPPORTED_ENABLE;
capabilities |= SATI_DEVICE_CAP_DMA_FUA_ENABLE;
device->ncq_depth = MIN(
device->ncq_depth,
(U8) (identify->queue_depth
& ATA_IDENTIFY_NCQ_QUEUE_DEPTH_ENABLE) + 1
);
}
}
// if the user requested that FUA is ignored; transfer it so we don't lose on update.
if (device->capabilities & SATI_DEVICE_CAP_IGNORE_FUA)
capabilities |= SATI_DEVICE_CAP_IGNORE_FUA;
if (identify->general_config_bits & ATA_IDENTIFY_REMOVABLE_MEDIA_ENABLE)
capabilities |= SATI_DEVICE_CAP_REMOVABLE_MEDIA;
if(identify->command_set_supported2 & ATA_IDENTIFY_WRITE_UNCORRECTABLE_SUPPORT )
{
capabilities |= SATI_DEVICE_CAP_WRITE_UNCORRECTABLE_ENABLE;
}
if(identify->physical_logical_sector_info &
ATA_IDENTIFY_LOGICAL_SECTOR_PER_PHYSICAL_SECTOR_ENABLE)
{
capabilities |= SATI_DEVICE_CAP_MULTIPLE_SECTORS_PER_PHYSCIAL_SECTOR;
}
if(identify->command_set_supported_extention &
ATA_IDENTIFY_COMMAND_SET_SMART_SELF_TEST_SUPPORTED)
{
capabilities |= SATI_DEVICE_CAP_SMART_SELF_TEST_SUPPORT;
}
if (identify->nominal_media_rotation_rate == 1)
{
capabilities |= SATI_DEVICE_CAP_SSD;
}
// Save off the logical block size reported by the drive
// See if Word 106 is valid and reports a logical sector size
if ((identify->physical_logical_sector_info & 0x5000) == 0x5000)
{
device->logical_block_size = (identify->words_per_logical_sector[3] << 24) |
(identify->words_per_logical_sector[2] << 16) |
(identify->words_per_logical_sector[1] << 8) |
(identify->words_per_logical_sector[0]);
}
else
{
device->logical_block_size = 512;
}
// Determine DSM TRIM capabilities
// Defend against SSDs which report TRIM support, but set
// max_lba_range_entry_blocks to zero, by disabling TRIM for
// those SSDs.
if (
(identify->data_set_management & ATA_IDENTIFY_COMMAND_SET_DSM_TRIM_SUPPORTED)
&& (identify->max_lba_range_entry_blocks > 0)
)
{
capabilities |= SATI_DEVICE_CAP_DSM_TRIM_SUPPORT;
device->max_lba_range_entry_blocks = identify->max_lba_range_entry_blocks;
}
if (identify->additional_supported
& ATA_IDENTIFY_COMMAND_ADDL_SUPPORTED_DETERMINISTIC_READ)
{
capabilities |= SATI_DEVICE_CAP_DETERMINISTIC_READ_AFTER_TRIM;
}
if (identify->additional_supported
& ATA_IDENTIFY_COMMAND_ADDL_SUPPORTED_READ_ZERO)
{
capabilities |= SATI_DEVICE_CAP_READ_ZERO_AFTER_TRIM;
}
if (identify->capabilities1
& ATA_IDENTIFY_CAPABILITIES1_STANDBY_ENABLE)
{
capabilities |= SATI_DEVICE_CAP_STANDBY_ENABLE;
}
device->min_blocks_per_microcode_command = identify->min_num_blocks_per_microcode;
device->max_blocks_per_microcode_command = identify->max_num_blocks_per_microcode;
device->capabilities = capabilities;
}