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| -rw-r--r-- | drivers/scsi/isci/sas.h | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/drivers/scsi/isci/sas.h b/drivers/scsi/isci/sas.h new file mode 100644 index 000000000..15d8f3631 --- /dev/null +++ b/drivers/scsi/isci/sas.h @@ -0,0 +1,217 @@ +/* + * 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[]; +} __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 |