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Diffstat (limited to 'sys/dev/isci/scil/sati_synchronize_cache.c')
| -rw-r--r-- | sys/dev/isci/scil/sati_synchronize_cache.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/sys/dev/isci/scil/sati_synchronize_cache.c b/sys/dev/isci/scil/sati_synchronize_cache.c new file mode 100644 index 0000000..3c97471 --- /dev/null +++ b/sys/dev/isci/scil/sati_synchronize_cache.c @@ -0,0 +1,119 @@ +/*- + * 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 for translating + * the SCSI SYNCHRONIZE_CACHE (10, 16-byte) commands. + */ + +#if !defined(DISABLE_SATI_SYNCHRONIZE_CACHE) + +#include <dev/isci/scil/sati_synchronize_cache.h> +#include <dev/isci/scil/sati_callbacks.h> +#include <dev/isci/scil/sati_util.h> +#include <dev/isci/scil/sati_translator_sequence.h> + +#include <dev/isci/scil/intel_ata.h> +#include <dev/isci/scil/intel_scsi.h> +#include <dev/isci/scil/intel_sat.h> + +//****************************************************************************** +//* P R I V A T E M E T H O D S +//****************************************************************************** + +/** + * @brief This method performs the SCSI SYNCHRONIZE_CACHE 10 and 16 command translation + * functionality common to all SYNCHRONIZE_CACHE command sizes. + * This includes: + * - setting the command register + * - setting the device head register + * - filling in fields in the SATI_TRANSLATOR_SEQUENCE object. + * For more information on the parameters passed to this method, + * please reference sati_translate_command(). + * + * @return Indicate if the method was successfully completed. + * @retval SATI_SUCCESS This is returned in all other cases. + */ +SATI_STATUS sati_synchronize_cache_translate_command( + SATI_TRANSLATOR_SEQUENCE_T * sequence, + void * scsi_io, + void * ata_io +) +{ + U8 * cdb = sati_cb_get_cdb_address(scsi_io); + U8 * register_fis = sati_cb_get_h2d_register_fis_address(ata_io); + + sequence->type = SATI_SEQUENCE_SYNCHRONIZE_CACHE; + sequence->protocol = SAT_PROTOCOL_NON_DATA; + sequence->data_direction = SATI_DATA_DIRECTION_NONE; + + if (sati_get_cdb_byte(cdb, 1) & SCSI_SYNCHRONIZE_CACHE_IMMED_ENABLED) + { + //currently we ignore immed bit. + ; + } + + // Ensure the device supports the 48 bit feature set. + if (sequence->device->capabilities & SATI_DEVICE_CAP_48BIT_ENABLE) + sati_set_ata_command(register_fis, ATA_FLUSH_CACHE_EXT); + else + sati_set_ata_command(register_fis, ATA_FLUSH_CACHE); + + return SATI_SUCCESS; +} + +#endif // !defined(DISABLE_SATI_SYNCHRONIZE_CACHE) + |
