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
255 lines
8.7 KiB
C
255 lines
8.7 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 the method implementations to translate
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* SCSI Write Buffer command based of the SAT2v07 spec.
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*/
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#include <dev/isci/scil/sati_write_buffer.h>
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#include <dev/isci/scil/sati_callbacks.h>
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#include <dev/isci/scil/sati_util.h>
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#define WRITE_BUFFER_WRITE_DATA 0x02
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#define WRITE_BUFFER_DOWNLOAD_SAVE 0x05
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#define WRITE_BUFFER_OFFSET_DOWNLOAD_SAVE 0x07
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#define BLOCK_SIZE 512
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/**
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* @brief This method will translate the SCSI Write Buffer command
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* into a corresponding ATA Write Buffer and Download Microcode commands.
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* For more information on the parameters passed to this method,
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* please reference sati_translate_command().
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*
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* @return Indicates if the command translation succeeded.
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* @retval SATI_SUCCESS indicates that the translation was supported and occurred
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* without error.
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* @retval SATI_FAILURE_CHECK_RESPONSE_DATA This value is returned if
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* there is a translation failure.
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*/
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SATI_STATUS sati_write_buffer_translate_command(
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SATI_TRANSLATOR_SEQUENCE_T * sequence,
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void * scsi_io,
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void * ata_io
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)
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{
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U8 * cdb = sati_cb_get_cdb_address(scsi_io);
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SATI_STATUS status = SATI_FAILURE;
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U32 allocation_length;
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U32 buffer_offset;
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allocation_length = ((sati_get_cdb_byte(cdb, 6) << 16) |
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(sati_get_cdb_byte(cdb, 7) << 8) |
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(sati_get_cdb_byte(cdb, 8)));
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buffer_offset = ((sati_get_cdb_byte(cdb, 3) << 16) |
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(sati_get_cdb_byte(cdb, 4) << 8) |
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(sati_get_cdb_byte(cdb, 5)));
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sequence->allocation_length = allocation_length;
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switch(sati_get_cdb_byte(cdb, 1))
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{
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case WRITE_BUFFER_WRITE_DATA:
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if((allocation_length == BLOCK_SIZE) && (buffer_offset == 0) &&
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(sati_get_cdb_byte(cdb, 2) == 0))
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{
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sati_ata_write_buffer_construct(ata_io, sequence);
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sequence->type = SATI_SEQUENCE_WRITE_BUFFER;
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sequence->state = SATI_SEQUENCE_STATE_AWAIT_RESPONSE;
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status = SATI_SUCCESS;
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}
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else
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{
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sati_scsi_sense_data_construct(
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sequence,
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scsi_io,
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SCSI_STATUS_CHECK_CONDITION,
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SCSI_SENSE_ILLEGAL_REQUEST,
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SCSI_ASC_INVALID_FIELD_IN_CDB,
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SCSI_ASCQ_INVALID_FIELD_IN_CDB
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);
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sequence->state = SATI_SEQUENCE_STATE_FINAL;
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status = SATI_FAILURE_CHECK_RESPONSE_DATA;
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}
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break;
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case WRITE_BUFFER_DOWNLOAD_SAVE:
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sati_ata_download_microcode_construct(
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ata_io,
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sequence,
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ATA_MICROCODE_DOWNLOAD_SAVE,
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allocation_length,
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buffer_offset
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);
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sequence->type = SATI_SEQUENCE_WRITE_BUFFER_MICROCODE;
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sequence->state = SATI_SEQUENCE_STATE_AWAIT_RESPONSE;
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status = SATI_SUCCESS;
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break;
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case WRITE_BUFFER_OFFSET_DOWNLOAD_SAVE:
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if(((allocation_length & 0x000001FF) == 0) && //Bits 08:00 need to be zero per SAT2v7
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((buffer_offset & 0x000001FF) == 0) &&
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(allocation_length <= sequence->device->max_blocks_per_microcode_command) &&
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(allocation_length >= sequence->device->min_blocks_per_microcode_command))
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{
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sati_ata_download_microcode_construct(
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ata_io,
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sequence,
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ATA_MICROCODE_OFFSET_DOWNLOAD,
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allocation_length,
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buffer_offset
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);
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sequence->type = SATI_SEQUENCE_WRITE_BUFFER_MICROCODE;
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sequence->state = SATI_SEQUENCE_STATE_AWAIT_RESPONSE;
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status = SATI_SUCCESS;
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}
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else
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{
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sati_scsi_sense_data_construct(
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sequence,
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scsi_io,
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SCSI_STATUS_CHECK_CONDITION,
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SCSI_SENSE_ILLEGAL_REQUEST,
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SCSI_ASC_INVALID_FIELD_IN_CDB,
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SCSI_ASCQ_INVALID_FIELD_IN_CDB
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);
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sequence->state = SATI_SEQUENCE_STATE_FINAL;
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status = SATI_FAILURE_CHECK_RESPONSE_DATA;
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}
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break;
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default: //unsupported Write Buffer Mode
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sati_scsi_sense_data_construct(
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sequence,
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scsi_io,
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SCSI_STATUS_CHECK_CONDITION,
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SCSI_SENSE_ILLEGAL_REQUEST,
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SCSI_ASC_INVALID_FIELD_IN_CDB,
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SCSI_ASCQ_INVALID_FIELD_IN_CDB
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);
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sequence->state = SATI_SEQUENCE_STATE_FINAL;
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status = SATI_FAILURE_CHECK_RESPONSE_DATA;
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break;
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}
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return status;
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}
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/**
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* @brief This method will complete the Write Buffer Translation by checking
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* for ATA errors and then creating a unit attention condition for
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* changed microcode.
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*
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* @return Indicates if the command translation succeeded.
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* @retval SATI_FAILURE_CHECK_RESPONSE_DATA This value is returned if
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* there is a translation failure.
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* @retval SATI_COMPLETE indicates that the translation was supported, occurred without
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* error, and no additional translation is necessary.
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*/
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SATI_STATUS sati_write_buffer_translate_response(
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SATI_TRANSLATOR_SEQUENCE_T * sequence,
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void * scsi_io,
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void * ata_io
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)
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{
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U8 * register_fis = sati_cb_get_d2h_register_fis_address(ata_io);
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U8 ata_status = (U8) sati_get_ata_status(register_fis);
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SATI_STATUS status = SATI_FAILURE;
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if (ata_status & ATA_STATUS_REG_ERROR_BIT)
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{
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sati_scsi_sense_data_construct(
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sequence,
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scsi_io,
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SCSI_STATUS_CHECK_CONDITION,
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SCSI_SENSE_ABORTED_COMMAND,
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SCSI_ASC_NO_ADDITIONAL_SENSE,
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SCSI_ASCQ_NO_ADDITIONAL_SENSE
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);
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status = SATI_FAILURE_CHECK_RESPONSE_DATA;
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}
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else
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{
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switch(sequence->type)
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{
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case SATI_SEQUENCE_WRITE_BUFFER_MICROCODE:
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sati_scsi_sense_data_construct(
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sequence,
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scsi_io,
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SCSI_STATUS_GOOD,
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SCSI_SENSE_UNIT_ATTENTION,
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SCSI_ASC_MICROCODE_HAS_CHANGED,
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SCSI_ASCQ_MICROCODE_HAS_CHANGED
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);
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status = SATI_COMPLETE;
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break;
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default:
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status = SATI_COMPLETE;
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break;
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}
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}
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sequence->state = SATI_SEQUENCE_STATE_FINAL;
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return status;
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}
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