drivers/scsi/isci/sas.h - kernel/bruno - Git at Google

 /*
  * 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_

 #include <linux/kernel.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;


 /*
  * struct smp_req_phy_id - This structure defines the contents of
  *    an SMP Request that is comprised of the struct smp_request_header and a
  *    phy identifier.
  *    Examples: SMP_REQUEST_DISCOVER, SMP_REQUEST_REPORT_PHY_SATA.
  *
  * For specific information on each of these individual fields please reference
  * the SAS specification.
  */
 struct smp_req_phy_id {
 	u8 _r_a[4];		/* bytes 4-7 */

 	u8 ign_zone_grp:1;	/* byte 8 */
 	u8 _r_b:7;

 	u8 phy_id;		/* byte 9 */
 	u8 _r_c;		/* byte 10 */
 	u8 _r_d;		/* byte 11 */
 }  __packed;

 /*
  * struct smp_req_config_route_info - This structure defines the
  *    contents of an SMP Configure Route Information request.
  *
  * For specific information on each of these individual fields please reference
  * the SAS specification.
  */
 struct smp_req_conf_rtinfo {
 	u16 exp_change_cnt;		/* bytes 4-5 */
 	u8 exp_rt_idx_hi;		/* byte 6 */
 	u8 exp_rt_idx;			/* byte 7 */

 	u8 _r_a;			/* byte 8 */
 	u8 phy_id;			/* byte 9 */
 	u16 _r_b;			/* bytes 10-11 */

 	u8 _r_c:7;			/* byte 12 */
 	u8 dis_rt_entry:1;
 	u8 _r_d[3];			/* bytes 13-15 */

 	u8 rt_sas_addr[8];		/* bytes 16-23 */
 	u8 _r_e[16];			/* bytes 24-39 */
 }  __packed;

 /*
  * struct smp_req_phycntl - This structure defines the contents of an
  *    SMP Phy Controller request.
  *
  * For specific information on each of these individual fields please reference
  * the SAS specification.
  */
 struct smp_req_phycntl {
 	u16 exp_change_cnt;		/* byte 4-5 */

 	u8 _r_a[3];			/* bytes 6-8 */

 	u8 phy_id;			/* byte 9 */
 	u8 phy_op;			/* byte 10 */

 	u8 upd_pathway:1;		/* byte 11 */
 	u8 _r_b:7;

 	u8 _r_c[12];			/* byte 12-23 */

 	u8 att_dev_name[8];             /* byte 24-31 */

 	u8 _r_d:4;			/* byte 32 */
 	u8 min_linkrate:4;

 	u8 _r_e:4;			/* byte 33 */
 	u8 max_linkrate:4;

 	u8 _r_f[2];			/* byte 34-35 */

 	u8 pathway:4;			/* byte 36 */
 	u8 _r_g:4;

 	u8 _r_h[3];			/* bytes 37-39 */
 }  __packed;

 /*
  * struct smp_req - This structure simply unionizes the existing request
  *    structures into a common request type.
  *
  * XXX: This data structure may need to go to scsi/sas.h
  */
 struct smp_req {
 	u8 type;		/* byte 0 */
 	u8 func;		/* byte 1 */
 	u8 alloc_resp_len;	/* byte 2 */
 	u8 req_len;		/* byte 3 */
 	u8 req_data[0];
 }  __packed;

 /*
  * struct sci_sas_address - This structure depicts how a SAS address is
  *    represented by SCI.
  * XXX convert this to u8 [SAS_ADDR_SIZE] like the rest of libsas
  *
  */
 struct sci_sas_address {
 	u32 high;
 	u32 low;
 };
 #endif
	/*
	* 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_

	#include <linux/kernel.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;


	/*
	* struct smp_req_phy_id - This structure defines the contents of
	* an SMP Request that is comprised of the struct smp_request_header and a
	* phy identifier.
	* Examples: SMP_REQUEST_DISCOVER, SMP_REQUEST_REPORT_PHY_SATA.
	*
	* For specific information on each of these individual fields please reference
	* the SAS specification.
	*/
	struct smp_req_phy_id {
	u8 _r_a[4]; /* bytes 4-7 */

	u8 ign_zone_grp:1; /* byte 8 */
	u8 _r_b:7;

	u8 phy_id; /* byte 9 */
	u8 _r_c; /* byte 10 */
	u8 _r_d; /* byte 11 */
	} __packed;

	/*
	* struct smp_req_config_route_info - This structure defines the
	* contents of an SMP Configure Route Information request.
	*
	* For specific information on each of these individual fields please reference
	* the SAS specification.
	*/
	struct smp_req_conf_rtinfo {
	u16 exp_change_cnt; /* bytes 4-5 */
	u8 exp_rt_idx_hi; /* byte 6 */
	u8 exp_rt_idx; /* byte 7 */

	u8 _r_a; /* byte 8 */
	u8 phy_id; /* byte 9 */
	u16 _r_b; /* bytes 10-11 */

	u8 _r_c:7; /* byte 12 */
	u8 dis_rt_entry:1;
	u8 _r_d[3]; /* bytes 13-15 */

	u8 rt_sas_addr[8]; /* bytes 16-23 */
	u8 _r_e[16]; /* bytes 24-39 */
	} __packed;

	/*
	* struct smp_req_phycntl - This structure defines the contents of an
	* SMP Phy Controller request.
	*
	* For specific information on each of these individual fields please reference
	* the SAS specification.
	*/
	struct smp_req_phycntl {
	u16 exp_change_cnt; /* byte 4-5 */

	u8 _r_a[3]; /* bytes 6-8 */

	u8 phy_id; /* byte 9 */
	u8 phy_op; /* byte 10 */

	u8 upd_pathway:1; /* byte 11 */
	u8 _r_b:7;

	u8 _r_c[12]; /* byte 12-23 */

	u8 att_dev_name[8]; /* byte 24-31 */

	u8 _r_d:4; /* byte 32 */
	u8 min_linkrate:4;

	u8 _r_e:4; /* byte 33 */
	u8 max_linkrate:4;

	u8 _r_f[2]; /* byte 34-35 */

	u8 pathway:4; /* byte 36 */
	u8 _r_g:4;

	u8 _r_h[3]; /* bytes 37-39 */
	} __packed;

	/*
	* struct smp_req - This structure simply unionizes the existing request
	* structures into a common request type.
	*
	* XXX: This data structure may need to go to scsi/sas.h
	*/
	struct smp_req {
	u8 type; /* byte 0 */
	u8 func; /* byte 1 */
	u8 alloc_resp_len; /* byte 2 */
	u8 req_len; /* byte 3 */
	u8 req_data[0];
	} __packed;

	/*
	* struct sci_sas_address - This structure depicts how a SAS address is
	* represented by SCI.
	* XXX convert this to u8 [SAS_ADDR_SIZE] like the rest of libsas
	*
	*/
	struct sci_sas_address {
	u32 high;
	u32 low;
	};
	#endif