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6f231dda DW |
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 | */ | |
cc3dbd0a | 55 | #ifndef _ISCI_TASK_H_ |
6f231dda DW |
56 | #define _ISCI_TASK_H_ |
57 | ||
ed8a72d1 | 58 | #include <scsi/sas_ata.h> |
ce2b3261 | 59 | #include "host.h" |
ed8a72d1 | 60 | |
b343dff1 JS |
61 | #define ISCI_TERMINATION_TIMEOUT_MSEC 500 |
62 | ||
6f231dda | 63 | struct isci_request; |
6f231dda | 64 | |
6f231dda DW |
65 | /** |
66 | * enum isci_tmf_function_codes - This enum defines the possible preparations | |
67 | * of task management requests. | |
68 | * | |
69 | * | |
70 | */ | |
71 | enum isci_tmf_function_codes { | |
72 | ||
73 | isci_tmf_func_none = 0, | |
74 | isci_tmf_ssp_task_abort = TMF_ABORT_TASK, | |
75 | isci_tmf_ssp_lun_reset = TMF_LU_RESET, | |
6f231dda | 76 | }; |
14aaa9f0 | 77 | |
6f231dda DW |
78 | /** |
79 | * struct isci_tmf - This class represents the task management object which | |
80 | * acts as an interface to libsas for processing task management requests | |
81 | * | |
82 | * | |
83 | */ | |
84 | struct isci_tmf { | |
85 | ||
86 | struct completion *complete; | |
87 | enum sas_protocol proto; | |
88 | union { | |
af5ae893 | 89 | struct ssp_response_iu resp_iu; |
6f231dda | 90 | struct dev_to_host_fis d2h_fis; |
360b03ed DW |
91 | u8 rsp_buf[SSP_RESP_IU_MAX_SIZE]; |
92 | } resp; | |
6f231dda DW |
93 | unsigned char lun[8]; |
94 | u16 io_tag; | |
6f231dda DW |
95 | enum isci_tmf_function_codes tmf_code; |
96 | int status; | |
6f231dda DW |
97 | }; |
98 | ||
27234ab4 | 99 | static inline void isci_print_tmf(struct isci_host *ihost, struct isci_tmf *tmf) |
6f231dda DW |
100 | { |
101 | if (SAS_PROTOCOL_SATA == tmf->proto) | |
27234ab4 | 102 | dev_dbg(&ihost->pdev->dev, |
6f231dda DW |
103 | "%s: status = %x\n" |
104 | "tmf->resp.d2h_fis.status = %x\n" | |
105 | "tmf->resp.d2h_fis.error = %x\n", | |
106 | __func__, | |
107 | tmf->status, | |
108 | tmf->resp.d2h_fis.status, | |
109 | tmf->resp.d2h_fis.error); | |
110 | else | |
27234ab4 | 111 | dev_dbg(&ihost->pdev->dev, |
6f231dda DW |
112 | "%s: status = %x\n" |
113 | "tmf->resp.resp_iu.data_present = %x\n" | |
114 | "tmf->resp.resp_iu.status = %x\n" | |
115 | "tmf->resp.resp_iu.data_length = %x\n" | |
116 | "tmf->resp.resp_iu.data[0] = %x\n" | |
117 | "tmf->resp.resp_iu.data[1] = %x\n" | |
118 | "tmf->resp.resp_iu.data[2] = %x\n" | |
119 | "tmf->resp.resp_iu.data[3] = %x\n", | |
120 | __func__, | |
121 | tmf->status, | |
af5ae893 | 122 | tmf->resp.resp_iu.datapres, |
6f231dda | 123 | tmf->resp.resp_iu.status, |
af5ae893 DJ |
124 | be32_to_cpu(tmf->resp.resp_iu.response_data_len), |
125 | tmf->resp.resp_iu.resp_data[0], | |
126 | tmf->resp.resp_iu.resp_data[1], | |
127 | tmf->resp.resp_iu.resp_data[2], | |
128 | tmf->resp.resp_iu.resp_data[3]); | |
6f231dda DW |
129 | } |
130 | ||
131 | ||
132 | int isci_task_execute_task( | |
133 | struct sas_task *task, | |
134 | int num, | |
135 | gfp_t gfp_flags); | |
136 | ||
137 | int isci_task_abort_task( | |
138 | struct sas_task *task); | |
139 | ||
140 | int isci_task_abort_task_set( | |
141 | struct domain_device *d_device, | |
142 | u8 *lun); | |
143 | ||
144 | int isci_task_clear_aca( | |
145 | struct domain_device *d_device, | |
146 | u8 *lun); | |
147 | ||
148 | int isci_task_clear_task_set( | |
149 | struct domain_device *d_device, | |
150 | u8 *lun); | |
151 | ||
152 | int isci_task_query_task( | |
153 | struct sas_task *task); | |
154 | ||
155 | int isci_task_lu_reset( | |
156 | struct domain_device *d_device, | |
157 | u8 *lun); | |
158 | ||
159 | int isci_task_clear_nexus_port( | |
160 | struct asd_sas_port *port); | |
161 | ||
162 | int isci_task_clear_nexus_ha( | |
163 | struct sas_ha_struct *ha); | |
164 | ||
165 | int isci_task_I_T_nexus_reset( | |
166 | struct domain_device *d_device); | |
167 | ||
168 | void isci_task_request_complete( | |
169 | struct isci_host *isci_host, | |
170 | struct isci_request *request, | |
171 | enum sci_task_status completion_status); | |
172 | ||
173 | u16 isci_task_ssp_request_get_io_tag_to_manage( | |
174 | struct isci_request *request); | |
175 | ||
176 | u8 isci_task_ssp_request_get_function( | |
177 | struct isci_request *request); | |
178 | ||
6f231dda DW |
179 | |
180 | void *isci_task_ssp_request_get_response_data_address( | |
181 | struct isci_request *request); | |
182 | ||
183 | u32 isci_task_ssp_request_get_response_data_length( | |
184 | struct isci_request *request); | |
185 | ||
186 | int isci_queuecommand( | |
187 | struct scsi_cmnd *scsi_cmd, | |
188 | void (*donefunc)(struct scsi_cmnd *)); | |
189 | ||
6f231dda | 190 | #endif /* !defined(_SCI_TASK_H_) */ |