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
125 lines
5.0 KiB
C
125 lines
5.0 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 required to
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* translate the SCSI REPORT LUNS command.
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*/
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#if !defined(DISABLE_SATI_REPORT_LUNS)
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#include <dev/isci/scil/sati_report_luns.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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#include <dev/isci/scil/intel_ata.h>
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#include <dev/isci/scil/intel_scsi.h>
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/**
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* @brief This method will translate the REPORT LUN SCSI command. This
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* command is immediately completed, since there is no applicable
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* ATA/ATAPI command. The data payload is written and SATI_COMPLETE
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* is always returned.
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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 This method always indicates the translation is complete.
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* @retval SATI_COMPLETE This value is always returned.
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*/
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SATI_STATUS sati_report_luns_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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// Set the data length based on the allocation length field in the CDB.
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sequence->allocation_length = (sati_get_cdb_byte(cdb, 6) << 24) |
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(sati_get_cdb_byte(cdb, 7) << 16) |
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(sati_get_cdb_byte(cdb, 8) << 8) |
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(sati_get_cdb_byte(cdb, 9));
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// The first 4 bytes indicate the length of the LUN list. Each
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// LUN entry is 8 bytes. There is only ever LUN 0 for ATA/ATAPI
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// devices. The value reported is: n-7, where n is the last byte
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// offset (i.e. 15) in the REPORT LUN data.
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sati_set_data_byte(sequence, scsi_io, 0, 0);
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sati_set_data_byte(sequence, scsi_io, 1, 0);
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sati_set_data_byte(sequence, scsi_io, 2, 0);
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sati_set_data_byte(sequence, scsi_io, 3, 8);
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// Bytes 4-7 are reserved.
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sati_set_data_byte(sequence, scsi_io, 4, 0);
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sati_set_data_byte(sequence, scsi_io, 5, 0);
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sati_set_data_byte(sequence, scsi_io, 6, 0);
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sati_set_data_byte(sequence, scsi_io, 7, 0);
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// Add in our single LUN of zero.
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sati_set_data_byte(sequence, scsi_io, 8, 0);
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sati_set_data_byte(sequence, scsi_io, 9, 0);
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sati_set_data_byte(sequence, scsi_io, 10, 0);
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sati_set_data_byte(sequence, scsi_io, 11, 0);
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sati_set_data_byte(sequence, scsi_io, 12, 0);
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sati_set_data_byte(sequence, scsi_io, 13, 0);
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sati_set_data_byte(sequence, scsi_io, 14, 0);
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sati_set_data_byte(sequence, scsi_io, 15, 0);
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return SATI_COMPLETE;
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}
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#endif // !defined(DISABLE_SATI_REPORT_LUNS)
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