drivers/scsi/isci/sas.h

   1 /*
   2  * This file is provided under a dual BSD/GPLv2 license.  When using or
   3  * redistributing this file, you may do so under either license.
   4  *
   5  * GPL LICENSE SUMMARY
   6  *
   7  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of version 2 of the GNU General Public License as
  11  * published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  21  * The full GNU General Public License is included in this distribution
  22  * in the file called LICENSE.GPL.
  23  *
  24  * BSD LICENSE
  25  *
  26  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
  27  * All rights reserved.
  28  *
  29  * Redistribution and use in source and binary forms, with or without
  30  * modification, are permitted provided that the following conditions
  31  * are met:
  32  *
  33  *   * Redistributions of source code must retain the above copyright
  34  *     notice, this list of conditions and the following disclaimer.
  35  *   * Redistributions in binary form must reproduce the above copyright
  36  *     notice, this list of conditions and the following disclaimer in
  37  *     the documentation and/or other materials provided with the
  38  *     distribution.
  39  *   * Neither the name of Intel Corporation nor the names of its
  40  *     contributors may be used to endorse or promote products derived
  41  *     from this software without specific prior written permission.
  42  *
  43  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  44  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  45  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  46  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  47  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  48  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  49  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  50  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  51  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  52  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  53  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  54  */
  55
  56 #ifndef _SCI_SAS_H_
  57 #define _SCI_SAS_H_
  58 /*
  59  * SATA FIS Types These constants depict the various SATA FIS types devined in
  60  * the serial ATA specification.
  61  * XXX: This needs to go into <scsi/sas.h>
  62  */
  63 #define FIS_REGH2D          0x27
  64 #define FIS_REGD2H          0x34
  65 #define FIS_SETDEVBITS      0xA1
  66 #define FIS_DMA_ACTIVATE    0x39
  67 #define FIS_DMA_SETUP       0x41
  68 #define FIS_BIST_ACTIVATE   0x58
  69 #define FIS_PIO_SETUP       0x5F
  70 #define FIS_DATA            0x46
  71
  72 /*
  73  * contents of the SSP COMMAND INFORMATION UNIT.
  74  * For specific information on each of these individual fields please
  75  * reference the SAS specification SSP transport layer section.
  76  * XXX: This needs to go into <scsi/sas.h>
  77  */
  78 struct ssp_cmd_iu {
  79         u8 LUN[8];
  80         u8 add_cdb_len:6;
  81         u8 _r_a:2;
  82         u8 _r_b;
  83         u8 en_fburst:1;
  84         u8 task_prio:4;
  85         u8 task_attr:3;
  86         u8 _r_c;
  87
  88         u8 cdb[16];
  89 }  __packed;
  90
  91 /*
  92  * contents of the SSP TASK INFORMATION UNIT.
  93  * For specific information on each of these individual fields please
  94  * reference the SAS specification SSP transport layer section.
  95  * XXX: This needs to go into <scsi/sas.h>
  96  */
  97 struct ssp_task_iu {
  98         u8 LUN[8];
  99         u8 _r_a;
 100         u8 task_func;
 101         u8 _r_b[4];
 102         u16 task_tag;
 103         u8 _r_c[12];
 104 }  __packed;
 105
 106 #endif