f11c7f6305
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
246 lines
8.9 KiB
C
246 lines
8.9 KiB
C
/*-
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.GPL.
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*
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* BSD LICENSE
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/**
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* @file
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* @brief This file contains all of the defintions for the SATI remote
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* device object. Some translations require information to be
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* remembered on a per device basis. This information is stored
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* in the object defined in this file.
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*/
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#include <dev/isci/scil/sati_device.h>
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#include <dev/isci/scil/sci_util.h> // Move this file.
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#include <dev/isci/scil/sati_unmap.h>
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#include <dev/isci/scil/intel_scsi.h>
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/**
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* @brief This method simply initializes the data members in the device
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* object to their appropriate values.
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*
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* @param[in] device This parameter specifies the device for which to
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* initialize the data members.
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* @param[in] is_ncq_enabled This parameter specifies if NCQ is to be
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* utilized for this particular SATI device.
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* @param[in] max_ncq_depth This parameter specifies the maximum desired
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* NCQ depth. Once this value is set it can never be increased.
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* @param[in] ignore_fua This parameter specifies FUA is to be ignored and not
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* sent to the end device. Some OS (Windows) has quirky behaviors with FUA
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* and recommend driver developers ignore the bit.
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*
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* @return none
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*/
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void sati_device_construct(
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SATI_DEVICE_T * device,
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BOOL is_ncq_enabled,
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U8 max_ncq_depth,
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BOOL ignore_fua
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)
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{
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device->state = SATI_DEVICE_STATE_OPERATIONAL;
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device->capabilities = 0;
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device->descriptor_sense_enable = SCSI_MODE_PAGE_CONTROL_D_SENSE_DISABLE;
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// The user requested that NCQ be utilized if it is supported by
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// the device.
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if (is_ncq_enabled == TRUE)
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device->capabilities |= SATI_DEVICE_CAP_NCQ_REQUESTED_ENABLE;
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device->ncq_depth = max_ncq_depth;
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// The user requested that FUA is ignored (windows performance issue)
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if (ignore_fua == TRUE)
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device->capabilities |= SATI_DEVICE_CAP_IGNORE_FUA;
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}
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/**
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* @brief This method will update the SATI_DEVICE capabilities based on
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* the supplied ATA_IDENTIFY_DEVICE_DATA.
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*
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* @param[in] device This parameter specifies the device for which to update
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* the supported capabilities.
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* @param[in] identify This parameter specifies the ata identify device
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* information from which to extract the capabilities of the
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* device.
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*
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* @return none
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*/
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void sati_device_update_capabilities(
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SATI_DEVICE_T * device,
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ATA_IDENTIFY_DEVICE_DATA_T * identify
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)
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{
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U16 capabilities = 0;
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if (identify->capabilities1 & ATA_IDENTIFY_CAPABILITIES1_NORMAL_DMA_ENABLE)
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capabilities |= SATI_DEVICE_CAP_UDMA_ENABLE;
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if (identify->command_set_supported1
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& ATA_IDENTIFY_COMMAND_SET_SUPPORTED1_48BIT_ENABLE)
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{
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capabilities |= SATI_DEVICE_CAP_48BIT_ENABLE;
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}
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if (identify->command_set_supported0
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& ATA_IDENTIFY_COMMAND_SET_SUPPORTED0_SMART_ENABLE)
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{
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capabilities |= SATI_DEVICE_CAP_SMART_SUPPORT;
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}
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if (identify->command_set_enabled0
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& ATA_IDENTIFY_COMMAND_SET_SUPPORTED0_SMART_ENABLE)
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{
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capabilities |= SATI_DEVICE_CAP_SMART_ENABLE;
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}
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// Save the NCQ related capabilities information.
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if (identify->serial_ata_capabilities
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& ATA_IDENTIFY_SATA_CAPABILITIES_NCQ_ENABLE)
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{
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if (device->capabilities & SATI_DEVICE_CAP_NCQ_REQUESTED_ENABLE)
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{
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capabilities |= SATI_DEVICE_CAP_NCQ_REQUESTED_ENABLE;
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capabilities |= SATI_DEVICE_CAP_NCQ_SUPPORTED_ENABLE;
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capabilities |= SATI_DEVICE_CAP_DMA_FUA_ENABLE;
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device->ncq_depth = MIN(
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device->ncq_depth,
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(U8) (identify->queue_depth
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& ATA_IDENTIFY_NCQ_QUEUE_DEPTH_ENABLE) + 1
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);
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}
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}
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// if the user requested that FUA is ignored; transfer it so we don't lose on update.
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if (device->capabilities & SATI_DEVICE_CAP_IGNORE_FUA)
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capabilities |= SATI_DEVICE_CAP_IGNORE_FUA;
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if (identify->general_config_bits & ATA_IDENTIFY_REMOVABLE_MEDIA_ENABLE)
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capabilities |= SATI_DEVICE_CAP_REMOVABLE_MEDIA;
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if(identify->command_set_supported2 & ATA_IDENTIFY_WRITE_UNCORRECTABLE_SUPPORT )
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{
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capabilities |= SATI_DEVICE_CAP_WRITE_UNCORRECTABLE_ENABLE;
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}
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if(identify->physical_logical_sector_info &
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ATA_IDENTIFY_LOGICAL_SECTOR_PER_PHYSICAL_SECTOR_ENABLE)
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{
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capabilities |= SATI_DEVICE_CAP_MULTIPLE_SECTORS_PER_PHYSCIAL_SECTOR;
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}
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if(identify->command_set_supported_extention &
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ATA_IDENTIFY_COMMAND_SET_SMART_SELF_TEST_SUPPORTED)
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{
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capabilities |= SATI_DEVICE_CAP_SMART_SELF_TEST_SUPPORT;
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}
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if (identify->nominal_media_rotation_rate == 1)
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{
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capabilities |= SATI_DEVICE_CAP_SSD;
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}
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// Save off the logical block size reported by the drive
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// See if Word 106 is valid and reports a logical sector size
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if ((identify->physical_logical_sector_info & 0x5000) == 0x5000)
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{
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device->logical_block_size = (identify->words_per_logical_sector[3] << 24) |
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(identify->words_per_logical_sector[2] << 16) |
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(identify->words_per_logical_sector[1] << 8) |
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(identify->words_per_logical_sector[0]);
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}
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else
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{
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device->logical_block_size = 512;
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}
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// Determine DSM TRIM capabilities
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// Defend against SSDs which report TRIM support, but set
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// max_lba_range_entry_blocks to zero, by disabling TRIM for
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// those SSDs.
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if (
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(identify->data_set_management & ATA_IDENTIFY_COMMAND_SET_DSM_TRIM_SUPPORTED)
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&& (identify->max_lba_range_entry_blocks > 0)
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)
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{
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capabilities |= SATI_DEVICE_CAP_DSM_TRIM_SUPPORT;
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device->max_lba_range_entry_blocks = identify->max_lba_range_entry_blocks;
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}
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if (identify->additional_supported
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& ATA_IDENTIFY_COMMAND_ADDL_SUPPORTED_DETERMINISTIC_READ)
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{
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capabilities |= SATI_DEVICE_CAP_DETERMINISTIC_READ_AFTER_TRIM;
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}
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if (identify->additional_supported
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& ATA_IDENTIFY_COMMAND_ADDL_SUPPORTED_READ_ZERO)
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{
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capabilities |= SATI_DEVICE_CAP_READ_ZERO_AFTER_TRIM;
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}
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if (identify->capabilities1
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& ATA_IDENTIFY_CAPABILITIES1_STANDBY_ENABLE)
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{
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capabilities |= SATI_DEVICE_CAP_STANDBY_ENABLE;
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}
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device->min_blocks_per_microcode_command = identify->min_num_blocks_per_microcode;
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device->max_blocks_per_microcode_command = identify->max_num_blocks_per_microcode;
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device->capabilities = capabilities;
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}
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