drivers/scsi/isci/sas.h

/*
 * 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.
 *   * Neither the name of Intel Corporation nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * 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.
 */

#ifndef _SCI_SAS_H_
#define _SCI_SAS_H_
/*
 * SATA FIS Types These constants depict the various SATA FIS types devined in
 * the serial ATA specification.
 * XXX: This needs to go into <scsi/sas.h>
 */
#define FIS_REGH2D          0x27
#define FIS_REGD2H          0x34
#define FIS_SETDEVBITS      0xA1
#define FIS_DMA_ACTIVATE    0x39
#define FIS_DMA_SETUP       0x41
#define FIS_BIST_ACTIVATE   0x58
#define FIS_PIO_SETUP       0x5F
#define FIS_DATA            0x46

/**************************************************************************/
#define SSP_RESP_IU_MAX_SIZE	280

/*
 * contents of the SSP COMMAND INFORMATION UNIT.
 * For specific information on each of these individual fields please
 * reference the SAS specification SSP transport layer section.
 * XXX: This needs to go into <scsi/sas.h>
 */
struct ssp_cmd_iu {
	u8 LUN[8];
	u8 add_cdb_len:6;
	u8 _r_a:2;
	u8 _r_b;
	u8 en_fburst:1;
	u8 task_prio:4;
	u8 task_attr:3;
	u8 _r_c;

	u8 cdb[16];
}  __packed;

/*
 * contents of the SSP TASK INFORMATION UNIT.
 * For specific information on each of these individual fields please
 * reference the SAS specification SSP transport layer section.
 * XXX: This needs to go into <scsi/sas.h>
 */
struct ssp_task_iu {
	u8 LUN[8];
	u8 _r_a;
	u8 task_func;
	u8 _r_b[4];
	u16 task_tag;
	u8 _r_c[12];
}  __packed;

#endif