54b5e3a4bf
Kill the local smp response buffer. Besides being unnecessary, it is too small (currently truncates responses to 60 bytes). The mid-layer will have already allocated a sufficiently sized buffer, just kmap and copy into it directly. Cc: <stable@kernel.org> Reported-by: Derick Marks <derick.w.marks@intel.com> Tested-by: Derick Marks <derick.w.marks@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
218 lines
6.3 KiB
C
218 lines
6.3 KiB
C
/*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.GPL.
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*
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* BSD LICENSE
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SCI_SAS_H_
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#define _SCI_SAS_H_
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#include <linux/kernel.h>
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/*
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* SATA FIS Types These constants depict the various SATA FIS types devined in
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* the serial ATA specification.
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* XXX: This needs to go into <scsi/sas.h>
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*/
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#define FIS_REGH2D 0x27
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#define FIS_REGD2H 0x34
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#define FIS_SETDEVBITS 0xA1
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#define FIS_DMA_ACTIVATE 0x39
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#define FIS_DMA_SETUP 0x41
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#define FIS_BIST_ACTIVATE 0x58
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#define FIS_PIO_SETUP 0x5F
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#define FIS_DATA 0x46
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/**************************************************************************/
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#define SSP_RESP_IU_MAX_SIZE 280
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/*
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* contents of the SSP COMMAND INFORMATION UNIT.
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* For specific information on each of these individual fields please
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* reference the SAS specification SSP transport layer section.
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* XXX: This needs to go into <scsi/sas.h>
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*/
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struct ssp_cmd_iu {
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u8 LUN[8];
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u8 add_cdb_len:6;
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u8 _r_a:2;
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u8 _r_b;
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u8 en_fburst:1;
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u8 task_prio:4;
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u8 task_attr:3;
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u8 _r_c;
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u8 cdb[16];
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} __packed;
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/*
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* contents of the SSP TASK INFORMATION UNIT.
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* For specific information on each of these individual fields please
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* reference the SAS specification SSP transport layer section.
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* XXX: This needs to go into <scsi/sas.h>
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*/
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struct ssp_task_iu {
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u8 LUN[8];
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u8 _r_a;
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u8 task_func;
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u8 _r_b[4];
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u16 task_tag;
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u8 _r_c[12];
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} __packed;
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/*
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* struct smp_req_phy_id - This structure defines the contents of
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* an SMP Request that is comprised of the struct smp_request_header and a
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* phy identifier.
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* Examples: SMP_REQUEST_DISCOVER, SMP_REQUEST_REPORT_PHY_SATA.
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*
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* For specific information on each of these individual fields please reference
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* the SAS specification.
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*/
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struct smp_req_phy_id {
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u8 _r_a[4]; /* bytes 4-7 */
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u8 ign_zone_grp:1; /* byte 8 */
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u8 _r_b:7;
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u8 phy_id; /* byte 9 */
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u8 _r_c; /* byte 10 */
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u8 _r_d; /* byte 11 */
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} __packed;
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/*
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* struct smp_req_config_route_info - This structure defines the
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* contents of an SMP Configure Route Information request.
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*
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* For specific information on each of these individual fields please reference
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* the SAS specification.
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*/
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struct smp_req_conf_rtinfo {
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u16 exp_change_cnt; /* bytes 4-5 */
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u8 exp_rt_idx_hi; /* byte 6 */
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u8 exp_rt_idx; /* byte 7 */
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u8 _r_a; /* byte 8 */
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u8 phy_id; /* byte 9 */
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u16 _r_b; /* bytes 10-11 */
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u8 _r_c:7; /* byte 12 */
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u8 dis_rt_entry:1;
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u8 _r_d[3]; /* bytes 13-15 */
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u8 rt_sas_addr[8]; /* bytes 16-23 */
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u8 _r_e[16]; /* bytes 24-39 */
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} __packed;
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/*
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* struct smp_req_phycntl - This structure defines the contents of an
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* SMP Phy Controller request.
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*
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* For specific information on each of these individual fields please reference
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* the SAS specification.
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*/
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struct smp_req_phycntl {
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u16 exp_change_cnt; /* byte 4-5 */
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u8 _r_a[3]; /* bytes 6-8 */
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u8 phy_id; /* byte 9 */
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u8 phy_op; /* byte 10 */
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u8 upd_pathway:1; /* byte 11 */
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u8 _r_b:7;
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u8 _r_c[12]; /* byte 12-23 */
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u8 att_dev_name[8]; /* byte 24-31 */
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u8 _r_d:4; /* byte 32 */
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u8 min_linkrate:4;
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u8 _r_e:4; /* byte 33 */
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u8 max_linkrate:4;
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u8 _r_f[2]; /* byte 34-35 */
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u8 pathway:4; /* byte 36 */
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u8 _r_g:4;
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u8 _r_h[3]; /* bytes 37-39 */
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} __packed;
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/*
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* struct smp_req - This structure simply unionizes the existing request
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* structures into a common request type.
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*
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* XXX: This data structure may need to go to scsi/sas.h
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*/
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struct smp_req {
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u8 type; /* byte 0 */
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u8 func; /* byte 1 */
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u8 alloc_resp_len; /* byte 2 */
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u8 req_len; /* byte 3 */
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u8 req_data[0];
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} __packed;
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/*
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* struct sci_sas_address - This structure depicts how a SAS address is
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* represented by SCI.
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* XXX convert this to u8 [SAS_ADDR_SIZE] like the rest of libsas
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*
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*/
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struct sci_sas_address {
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u32 high;
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u32 low;
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};
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#endif
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